FTTH Fiber Assemblies

You Yuan Optic Communication: a First-Class FTTH Fiber Assemblies Manufacturer

Shenzhen You Yuan Communication is passionate working on Telecommunication industry for 20 years, mainly offering passive fiber optic materials and major focus on Last Mile FTTX and FTTR Networks.

Variety of Products

We can provide customers with indoor/outdoor optical cables, patch cords, FBT couplers, PLC splitters, optical fiber wall sockets, MPO rack-mounted optical fiber distribution frames, optical fiber access terminal boxes, optical fiber adapters, optical fiber attenuators and other optical fiber communications products and accessories.

Advanced Production Equipment

Our 10,000 square meter factory is equipped with advanced optical cable manufacturing equipment and inspection and testing equipment. These include optical fiber geometric parameter testers, laser calipers, optical amplifiers, horizontal tensile testing machines, high and low temperature test chambers, long test benches, water penetration testing devices, etc.

Rich Market Experience

Our fiber optic products and optical accessories are sold all over the world, such as Africa, Southeast Asia, America and other regions. Our mission is to provide customers with high-quality products and services at the right time and at the right price to help them increase their market share.

Multiple International Certifications

Our company has obtained ISO 9001, CE, ROHS, CPR and other international certifications. Our advanced management, strict quality control and product testing strength create world-class production specifications and features while maintaining competitive prices.

Cable Puller
Cable puller is a professional cable pulling tool that allows installers to easily route cables and save time even in the most challenging cable installations and difficult to reach areas (such as...
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SC To SC Simplex Fiber Patchcord
SC-SC single-mode and multi-mode indoor patch cords are essential components in modern network cabling systems. These fiber optic patch cords are not only designed for optimal performance but also...
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FC To FC Simplex Fiber Patchcord
FC Simplex fiber patch cords are essential components in fiber optic networks, meticulously designed for establishing connections between networking devices or components featuring FC (Ferrule...
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SC To SC Duplex Fiber Patchcord
Single-mode and multi-mode indoor patch cords, featuring SC duplex connectors assembled at both ends of the duplex optical cable, are highly popular choices for traditional wiring in various...
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LC To LC Simplex Fiber Patchcord
Single-mode and multi-mode indoor patch cords, with LC simplex connectors assembled at both ends of the simplex cable, represent a widely embraced choice in traditional wiring setups. These fiber...
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LC To LC Duplex Fiber Patchcord
LC Duplex multimode fiber patch cords are indispensable components in modern fiber optic networks, designed to establish duplex connections between networking devices or components featuring LC...
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FC To FC Duplex Fiber Patchcord
FC duplex fiber patch cords are integral components in fiber optic networks, meticulously designed to establish connections between networking devices or components equipped with FC duplex...
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ST To ST Simplex Fiber Patchcord
ST simplex fiber patch cords serve as the linchpin in fiber optic networks, meticulously engineered to forge connections between networking devices or components equipped with ST simplex...
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ST To ST Duplex Fiber Patchcord
ST duplex fiber patch cords play a pivotal role in contemporary fiber optic networks, meticulously engineered to establish connections between networking devices or components equipped with ST...
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SC To LC Simplex Fiber Patchcord
ST to LC simplex fiber patch cords serve as a vital link in the world of fiber optic connectivity, offering a versatile solution for connecting different types of fiber optic equipment. These...
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SC To LC Duplex Fiber Patchcord
Optical fiber connector is a device for detachable (movable) connection between optical fiber and optical fiber. It precisely butts the two end faces of optical fiber so that the optical energy...
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LC To FC Simplex Fiber Patchcord
Simplex optical cables featuring an LC simplex connector on one end and a simplex FC connector on the other end provide a versatile solution for bridging different optical connection systems with...
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First 12 Last

SC-SC single-mode and multi-mode indoor patch cords are essential components in modern network cabling systems. These fiber optic patch cords are not only designed for optimal performance but also comply with RoHS standards, reflecting their commitment to environmentally friendly practices.

Brief Introduction to FTTH Fiber Assemblies

FTTH fiber assemblies are designed to connect the fiber access point (hand hole, pedestal or aerial) to the ONT on the home in an FTTH network. They have been specifically designed to simplify and speed up the installation of fiber optic cables within SDU (Single Dwelling Units) and MDU (Multi-Dwelling Units). By using this solution, operators can lower the required skill-set of their field technicians and reduce the amount of time it takes to connect a subscriber to the network. These assemblies may be fiber optic patch cords, fiber optic pigtails, fiber optic connectors, and many other types of products.

Types and Benefits of FTTH Fiber Assemblies

Common FTTH assemblies include the following types.

Fiber Patch Cord

Fiber patch cords refer to fiber optic cables with connectors at both ends and a thick protective layer. It is mainly used in applications such as optical fiber communication systems, optical fiber access networks, optical fiber data transmission networks, and local area networks. It can be used in a cable TV network, communication networks, computer optical fiber networks, and optical test equipment.

Types of the Common Fiber Optic Patch Cords

ST to ST Patch Cord

ST to ST Patch Cord feature OFNR (riser-rated) jacket and ST-type connectors. Ceramic ferrules provide precise alignment, and their rigorous functional testing ensures optimal cable performance. They are used to connect patch panels and network equipment that use ST-type connectors and require 9/125 single-mode cabling. Its connectors are PC polished.

FC to FC Patch Cord

FC to FC Patch Cord is a multi-mode or single-mode fiber optic cable with connectors on both ends for rapidly and conveniently conjoined to CATV, optical switches, or other telecommunications equipment. Its thick security layer facilitates the connection of optical transmitters, receivers, and terminal boxes.

LC to LC Patch Cord

LC to LC Patch Cords are essential to data center and network deployments, providing the necessary connections between fiber optic devices. LC cable assemblies provide an easy solution for installing and maintaining fiber optic cables in high-density applications. Using LC patch cords is easy to change or rearrange your wiring without reconfiguring the entire system. The two ends of the LC fiber optic patch cords are identical in appearance, and the direction of the fiber optic cable can only distinguish it.

SC to SC Patch Cord

SC to SC Patch Cords are used to connect networking devices for signal routing. SC is short for Standard Connector or Subscriber Connector, one of the most popular fiber optic cable connectors used in network industries. SC patch cables can be used for connecting devices in Datacom and telecom; in GPON, EPON, GBIC, and MADI applications.

SC to LC Patch Cord

SC to LC Patch Cord is a conversion from a larger type of connector to a smaller type, connecting a device with a small connector (SC) to a device with a larger size connector (LC ). It can connect any device with a single-mode fiber optic connector to a multi-mode connection. SC connectors are generally suitable for the transmitting end of the line, while LC connectors are suitable for the receiving end. As the name implies, LC connectors have a smaller profile than SC and are typically used in high-density applications such as data centers and telecom.

SC to FC Patch Cord

SC to FC Patch Cord is the cable with the connector on one end and a connector on the other. The connectors are designed for fiber optic cables. These cables provide the connection between transceivers and fiber optic equipment. They consist of a thin plastic sheath over a single glass or plastic fiber core. The connector at the end of each cable usually has a molded boot and thumbscrew for protection. They can also connect two transceivers. These cables are compatible with single-mode and multi-mode specifications by having an SC connector and an FC at one end. The connectors (SC, ST, LC) are on the other end.

Mode Conditioning Fiber Optic Patch Cords

These special fiber optic patch cords are duplex multimode patch cables with a small length of single-mode fiber at the start of the transmission length. It is designed to solve the technical issue of using single-mode equipment on the existing multimode cable plant. Mode conditioning fiber optic patch cords aim to drive the distance of the installed fiber plant beyond its original intended applications and improve data signal quality.

Benefits of Fiber Optic Patch Cords

Fiber optic patch cords have many uses in almost every industry. Some of the benefits are:

Fiber optic patch cords help connect network devices with serial connections and allow easy changes to network layouts without punch blocks or patch panels.
Fiber optic patch cords connect computer systems, monitors, printers, and data storage devices to networks.
They’re also valuable for connecting audio equipment like speakers, microphones, and mixers.
Fiber optic patch cords are often helpful when replacing them and are more convenient or less expensive than repairing damaged connectors on equipment.

Fiber Pigtail

A fiber pigtail is typically a fiber optic cable with one end factory pre-terminated fiber connector and the other exposed fiber. It is usually suitable for field termination using a mechanical or fusion splicer. Compared with quick termination or epoxy and polish connections placed on the field site, the pre-terminated connectors provide time-saving, superior performance, and reliability.

Types of Fiber Pigtail

By Fiber Type

Generally, fiber optic pigtails are classified as multimode and single-mode fiber.

Multimode pigtails are made with 62.5/125μm or 50/125μm bulk multimode fiber cables and terminated with multimode connectors. However, if we want to classify them in more detail, we can divide them into OM1, OM2, OM3, OM4, and OM5 pigtails.
Single mode pigtails are made with 9/125μm OS1 or OS2 bulk single mode fiber cables and terminated with single mode connectors.

By Connector Type

LC Fiber Pigtail. LC connectors are compact form factor fiber connectors for high-density connections. They are a 50% smaller version of the older SC fiber connector and have a square plastic enclosure with a 1.25mm ceramic ferrule. The LC fiber pigtails are pre-assembled with an LC connector. It is one of the most common types.
SC Fiber Pigtail. SC, which stands for Subscriber Connector, has also been called Square Connector or Standard Connector. The SC connector has a 2.5mm pre-radiused zirconia or stainless alloy ferrule. The SC fiber pigtails are pre-assembled pigtails with an SC connector. Because of the low cost, longevity, and ease of installation, SC pigtail is commonly used in both P2P and PON applications.
FC Fiber Pigtail. FC fiber pigtails benefit from the metallic body of FC optical connectors, which have a screw-type structure and high-accuracy ceramic ferrules. FC fiber pigtails and related items are widely used in various applications.
ST Fiber Pigtail. ST fiber pigtail is similar to the FC pigtail, but instead of threads, the ST connector has a locking mechanism different from FC connectors. It has a ferrule with an extended 2.5mm diameter composed of ceramic (zirconia), stainless alloy, or plastic. As a result, ST pigtails are commonly used in telecom, industry, medical, and sensor applications.

By Interface Polish Type

PC Fiber Pigtail. PC is an abbreviation for “physical contact” connector. A PC fiber pigtail made with physical contact polished connector. Most multimode pigtails are PC polished and widely used in the telecom sector and data systems.
UPC Fiber Pigtail . UPC stands for “ultra physical contact”. Unlike the PC fiber pigtail, this pigtail is made of a UPC connector with improved physical contact for reducing air gaps and lowering ORL even further. It is the most commonly polished type for single mode and multimode pigtails.
APC Fiber Pigtail. APC stands for “Angled physical contact”. It is designed to reduce back reflection even further. These connectors’ ferrule end faces are polished at an angle of 8 degrees. APC fiber pigtails are typically used in CATV, FTTX and other WDM systems.

By Application Conditions

Some pigtail cables are uniquely set up to combat harsh or extreme conditions, such as armored fiber braid and waterproof fiber braid.

Armored Optical Fiber Pigtail. Encased in an outer jacket with stainless steel pipe or other strong steel, armored fiber pigtails provide extra protection to the fiber inside and increase network reliability while reducing unnecessary damage caused by rodents, construction work, and the weight of other cables.
Waterproof Fiber Pigtail. Designed with a reinforced stainless steel waterproof unit and a PE (Poly Ethylene) armored outer jacket, the waterproof fiber pigtail is an excellent solution for harsh environments such as communication towers, CATV, and the military. The waterproof pigtail cable enhances good strength, tensile strength, and reliable performance, facilitating outdoor connections.

By Fiber Count

The most common fiber pigtails have one fiber count, such as the simplex LC pigtail consists of one bare fiber with one terminated LC connector. However, in some cases, the fiber count is also available in 2, 4, 6, 8, 12, 24, 48, and 72. Each fiber pigtail should be color-coded according to industry standard TIA-EIA-598-A.

Benefits of Fiber Pigtail

There are many benefits to using a fiber-optic pigtail, including.

*Ease of Installation: Pigtails are easy to install and can be used to connect devices quickly and easily.

*Versatility: Pigtails are available in a variety of connector types and lengths, making them suitable for a wide range of applications.

*Durability: Pigtails are made from high-quality materials and are designed to withstand harsh environments.

*Cost-effectiveness: Pigtails are a cost-effective way to connect devices and extend the reach of your network.

Fiber Connector

A fiber connector also goes by the name termination because it connects two ends of fiber optic cables. These connectors hold the fiber optic cables together inside the ferrule to attach them to the other side of the cables. Ferrules are the connector end pieces that include the method of connecting and securing the termination. Some ferrules will plug into a mating adapter and screw to hold the two portions together. Others use a bayonet design, while some snap together.

Types of Fiber Connectors

Lucent Connectors (LC)

LC connectors have some of the smallest ferrules, measuring 1 1/4 mm, which is approximately half the size of an ST connector. Their tiny size puts them into the small form factor category of terminations. These connectors work well for multimode transceivers and single-mode cables.

Standard Connectors (SC)

SC connectors have a 2 1/2 mm ferrule that snaps cleanly into place. Using a push and pull motion secures the connector. These types of terminations have high levels of performance, which along with a price drop since their introduction, has contributed to their vast popularity in multiple applications. In fact, many formerly ST connectors applications now use SC connectors instead, since SC was invented to supplant ST in both telecommunications and data communications.

ST Connectors

ST connectors are among the oldest of fiber cable connector types. Until 2005, this proprietary AT&T brand of connector ranked as one of the most popular fiber terminations. While solutions that solve some issues ST connectors present have replaced these connectors, they still remain popular. Today, their cost is low due to their age, making them a choice for budget-mindful projects.The design of ST connectors is a 2 1/2 mm ferrule that has a bayonet-style connection between the fibers through an adapter. These ferrules use a spring-load design that can make installation difficult unless the parts have precise seating, though a keyed slot assists with aligning the ferrules for connection.

Ferrule Core (FC) Connectors

FC connectors rank as some of the most popular for use with single-mode connections before the introduction of LC and SC connectors. These use a keyed, screw-in type ferrule. However, the process of screwing in the ferrule requires extra time and effort compared to snap-in SC connectors. The screw-in design prevents the connection from interruptions, even when someone pulls the cable or the system has applications in areas with a lot of movement. Video over fiber is one use for these types of connectors due to the constant flow of data through the cable and the security of the connector. Like ST and SC connectors, FC terminations use a 2 1/2 mm ferrule. With a hybrid adapter, anyone can create a bridge between these connector types.

Multi-Position Optical (MPO) Connectors

MTP is the commercial brand of MPO connectors. MTP and MPO connectors are the same, except the MTP brand has a specific use for high-performance applications, whereas MPO works on more mechanical situations. These two connectors usually connect ribbon cables with multiple fibers. These connectors have two to six rows of 12 or 16 fibers. MPO connectors with 12 fibers per row can have two to six rows, with two the most common number. Connectors that have 16 fibers per row do not have more than two rows. Connections between ferrules use pins and holes to mate the ends of the fiber with another cable or an electronic device. Most often, this type of connector has applications in either high-speed links that use multimode or for pre-terminated cable groupings.

MT-RJ Connectors

Today, MT-RJ connectors have disappeared from use. However, some systems may still require these connectors for repairs. MT-RJ only works for multimode cables with duplex fibers. Both fibers go into the ferrule that connects to its mated half with pins and holes, similar to MPO terminations. Some plug-and-jack variations on this type of connector also exist.

Benefits of Fiber Connectors

With the growing reliance on high-speed, high-capacity networks, fiber optic connectors’ role becomes even more critical. They facilitate quick, efficient, and reliable transmission of data, satisfying the demands of various industries such as telecommunications, healthcare, military, and others. Fiber optic connectors also enable network scalability and flexibility, allowing for easy upgrades and expansions as data transmission needs evolve.

FTTH Fiber Assemblies Technical Parameters

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FTTH Fiber Assemblies Applications

FTTH fiber assemblies have uses in the following areas

12F MPO To LC Singlemode Fiber Patchcord

Internet and Local Area Networks (LANs)

Fiber optic cables allow for greater bandwidth compared to other cable options. Common uses for networking include fiber optics for delivering internet and LAN connectivity throughout a building. Fiber optic cable works especially well over distances greater than 90 meters and when carrying gigabit-speed connections. Both LAN and high-speed internet use multimode fiber optic cable. Innovations in fiber optic technology, high costs for maintaining telecom closets and lowering prices for fiber optics may eventually make all fiber networks the norm.

Community Antenna TV (CATV) and Other Telecommunications

Community antenna TV and other telecommunications companies often prefer fiber optic cable and FTTH fiber assemblies to deliver their signals due to the lower cost over long distances with less loss and higher bandwidth compared to older technologies. Additionally, each transmitter and receiver pair of fibers can carry more voice and video signals. Compared to wire delivery methods, fiber optics can go 100 times farther and more than 1,000 times faster. CATV may use single-mode fiber optic cabling for its higher bandwidth and lower loss.

Digital Telephone Service

Telephony is another system that benefits from fiber optic cable and FTTH fiber assemblies use. Like CATV, many digital telephone applications use single-mode fiber cable. In fact, in the business world, telephony is one of the top uses for fiber optic cables.

Public Utility Networks

Public utilities, such as electrical companies or municipal water treatment facilities, use fiber optics and FTTH fiber assemblies in several ways. They may have fiber optic connected closed-circuit TV (CCTV) security cameras and a network connecting various sites to provide real-time data on operations. Electrical companies, for instance, recognized the interference of their production and distribution equipment on traditional communications wires and made an early switch to fiber optics. City emergency services also use fiber optics with CCTV, wireless technology and traffic cameras to integrate communications and information sharing among responders. Plus, fiber connectivity through in-city networks can offer higher bandwidth to accommodate large numbers of city workers on the system accessing information at once.

Industrial Networking

As with electricity companies, fiber optics and FTTH fiber assemblies also play a role in the choice of communication products used in industrial businesses. Electrical noise from equipment can cause severe problems with unshielded wire cable. But it does not do the same for fiber optics. With many industrial facilities moving into smart operations with devices connected to each other and the internet over a network, reliable connectivity is vital. For industrial applications, fiber connectors must have firm attachments that cannot easily dislodge, even from constant vibrations caused by machinery operating nearby.

Military Networks

Military operations need connectivity in some of the harshest environments on the planet. Battlefields, naval ships, military bases and planes all need to have means of connecting. Interference, movement and tapping into the communications lines pose threats for the military. Fiber optics and FTTH fiber assemblies resolves these issues. Plus, on vehicles and planes, it reduces the weight required for communications hardware.

Important Considerations to Keep in Mind When Implementing FTTH Networks

As the demand for faster and more reliable internet connectivity continues to increase, many internet service providers (ISPs) are turning to Fiber-to-the-Home (FTTH) networks to meet these needs. FTTH networks offer incredible speeds and a higher quality of service compared to traditional copper-based networks. The following content will discuss some important considerations that ISPs should keep in mind when implementing an FTTH network.

Network Design

The design of your FTTH network is crucial for its successful implementation. Consider the following factors.

Service Coverage: Determine the areas and neighborhoods where you intend to provide FTTH services. Conduct a thorough analysis of customer demand and potential profitability.

Fiber Deployment: Plan the route and deployment strategy for laying the fiber optic cables. Consider factors like distance, terrain, existing infrastructure, and estimated costs.

Nodal Placement: Strategically place network nodes to maximize coverage and minimize signal degradation. Optimize the distance between nodes to ensure efficient connectivity.

Fiber Optic Cable Selection

Choosing the right type of fiber optic cables is crucial to ensure high-speed and reliable connections. Consider the following.

Fiber Type: Select fiber types that offer the required bandwidth and can handle future upgrades. Single-mode fibers are recommended for long-distance FTTH connections.

Cable Specifications: Pay attention to cable specifications such as bend radius, tensile strength, and jacket material. These factors affect the durability and performance of the cables.

Fiber Protection: Implement suitable measures to protect the fiber cables from physical damage, such as installing conduits or using aerial deployment methods.

Network Scalability

Your FTTH network should be scalable to accommodate future technological advancements and growing demand. Consider the following.

Scalable Architecture: Implement a scalable network architecture that allows for easy addition of new subscribers and services without major disruptions.

Spare Fiber Allocation: Allocate spare fibers during initial deployment to facilitate future upgrades and prevent the need for extensive modifications to the network infrastructure.

Equipment Compatibility: Ensure that your equipment and devices are compatible with future technologies and standards to avoid costly replacements.

Maintaining Quality of Service

Providing a consistent and reliable service is crucial to customer satisfaction. Consider the following.

Service Level Agreements (SLAs): Clearly define the quality metrics and performance standards that customers can expect from your FTTH network. Adhere to these SLAs to maintain customer trust.

Redundancy and Backup: Implement redundancy measures to minimize service outages. Have backup power supplies and redundant network infrastructure in critical areas.

Proactive Monitoring: Continuously monitor network performance and address issues proactively to minimize downtime and ensure optimal service delivery.

Ultimate Guide

Q: What is a fiber optic cable?

A: A fiber optic cable contains anywhere from one to several hundred optical fibers within a plastic casing. Fiber optic cable (or optical fiber cable) transfers data signals in the form of light and travel anywhere from a few feet to hundreds of miles significantly faster than signals in traditional copper cables.

Q: What are fiber optic cables made of?

A: Fiber optic cables are made up of glass fibers that transmit light signals over short and long distances. They are used in industrial communications settings as well as telecommunications networks for high-speed data transmission. They are also used to transmit high-power laser energy in such applications as medical lasers for surgery and military laser defense systems. In communications applications, optical fibers are replacing copper wire because they can carry much more information than copper does and at much higher speeds.

Q: Does cold weather affect fiber optic cable?

A: Fiber optic cables are designed to operate in a wide range of temperatures including very cold temperatures. The manufacturer selects jacketing material based on the end-users environmental factors. The manufacturer will specify the storage and operating temperature range for the cable it produces.

Q: What is an FTTH converter?

A: An FTTH converter, also known as an optical network terminal (ONT), is a device used to convert optical signals from the fiber-optic line to electrical signals that can be used by various devices in your home or workplace. Essentially, it acts as a bridge between the optical network and your devices, enabling high-speed internet access.

Q: How does an FTTH converter work?

A: FTTH converters work by receiving light signals from the fiber-optic line and converting them into electrical signals that can be understood by devices such as computers, routers, and telephones. The converter demodulates the optical signals and establishes a connection with your devices, delivering fast and reliable connectivity.

Q: Are there any key considerations when choosing an FTTH converter?

A: When choosing an FTTH converter, keep the following factors in mind:

*Compatibility: Ensure the FTTH converter is compatible with your service provider's network and your devices.

*Speed: Opt for a converter that supports the highest internet speeds available in your area to fully utilize the capabilities of your FTTH connection.

*Connectivity Options: Look for a converter with multiple Ethernet ports, Wi-Fi capabilities, and any other connections you may need for your specific setup.

*Reliability and Brand Reputation: Choose a reliable and reputable brand known for providing quality FTTH converters.

Q: What is a fiber optic splitter?

A: Fiber optic splitters are devices that split or combine the optical signals from one or more input fibers to multiple output fibers. Splitters are used to distribute the signal from the central office (CO) to multiple premises in a FTTH network, or to combine the signals from multiple premises to the CO in a bidirectional FTTH network. There are different types of fiber optic splitters, such as fused biconical taper (FBT) splitters, planar lightwave circuit (PLC) splitters, and wavelength division multiplexing (WDM) splitters, that vary in performance, size, and functionality.

Q: How to choose a suitable fiber optic splitter?

A: To use the appropriate fiber optic splitter for your FTTH network, you need to consider factors such as the splitting ratio (the ratio of the input power to the output power for each port), the uniformity (the difference in output power among the ports), the insertion loss (the amount of signal power lost at the splitter), the return loss (the amount of signal power reflected back at the splitter), and the wavelength range (the range of wavelengths that the splitter can handle).

Q: What is fiber to the home?

A: Fiber to the home (FTTH), also called fiber to the premises (FTTP), is the installation and use of optical fiber from a central point to individual buildings to provide high-speed internet access. FTTH dramatically increases connection speeds available to computer users compared to other technologies. FTTH promises connection speeds of up to 100 megabits per second (Mbps). These speeds are 20 to 100 times as fast as a typical cable modem or DSL connections. It could be costly to implement FTTH on a large scale because it requires the installation of new cable sets over the last links from existing optical fiber cables to individual users.

Q: How does FTTH work?

A: The defining characteristic of FTTH is that it connects optical fiber directly to residences, apartment buildings and businesses. FTTH uses optical fiber for most or all last-mile telecommunications. Optical fiber transmits data using light signals to achieve higher performance. In FTTH access networks, fiber optic cables run from a central office and through a fiber distribution hub. The cables then run through a network access point (AP) and finally into the home through a terminal that serves as a junction box.

Q: How can a coherent laser single mode source be correctly coupled to a long length of multimode fibre and multimode receiver ?

A: This is a difficult issue to address. Coherent lasers and multimode fiber have always had problems - that's why the telecom companies switched to SM fiber. The problem is the SM cable launches into the center of the MM fiber and you get differential modal dispersion (DMD) problems. The center of the MM fiber is somewhat unpredictable. Plus every connector and splice changes the modal distribution adding to the uncertainty. For GBE, companies are offering offset launch cables that couple the SM fiber with an offset of about 15 microns. That seems to help. Laser-optimized 50/125 fiber should be a good solution. If you signal is analog, we don't think you will find a good solution, due to the distortion induced. If it's digital, you will have more luck, but it's still hard to predict!

Q: How about using proprietary fibre optic connectors?

A: There is little risk in using the LC connector. Of all the SFF (small form factor connectors) it is the one that has become the most popular - in fact, it is the de facto standard connector for gigabit and 10 gigabit networks. Indeed the design is very well thought out. The smaller ferrule is easy to polish well and has excellent mating performance - which leads to low loss and back reflection. It is also easy to terminate and test.

Q: Will a single mode connector work on multi-mode cable?

A: The answer is maybe you can use SM connectors on MM but NOT the reverse. SM connectors are made to tighter tolerances - as is SM fiber - so the ferrule hole may be too small for some MM fibers. MM connectors have bigger holes for the fiber and will have high loss (>1dB) with SM. Also MM connectors may not be PC (physical contact) polish - terrible for return loss. MM fiber may not fit the smaller hole in SM connectors.

Q: Could you please explain to me what optical return loss is?

A: It's simply a reflection at a connector or splice caused by imperfect mating of the fibers (reflectance) although some companies define it to be measurement of a cable plant that includes backscattered light as well as reflectance from individual components. The reflected light may cause a laser transmitter to have problems with linearity or create background noise that affects transmission. It does not affect LED systems.

Q: What is fiber optic patch cord?

A: Fiber optic patch cord is a length of optical cable that connects optical fiber equipment. It equips with fiber connectors such as LC, SC, FC, ST, E2000 etc., transmitting data signals between different optical fiber equipment. As a key device in indoor environments, fiber optic patch cord widely use in data centers, network communications and computer networks. Optical fiber patch cords offer several advantages, such as high reliability, adaptability, and security. You can choose connector types according to usage scenario, and adapt to different fiber optic equipment.

Q: Do single mode connectors work on multimode cables?

A: Yes. you can use single mode connectors on multimode, but not the other way around.

Q: If I have an SC connector installed and find that what I need is LC type, how can I do?

A: In this kind of situation, a common solution is that you can purchase an SC-SC coupler, then purchase a pre-terminated SC to LC patch cable. Adapters are also available like LC-LC or LC-SC.

Q: What types of fiber pigtails are there?

A: The fiber optic pigtail is designed with an optic connector used for connecting to equipment, and the other side is an exposed fiber used to be melted with optical fiber. There are two different types of fiber pigtail connectors: male or female connectors. Female connectors are usually installed in pairs in a patch panel. Although there is a single-solution that allows them to connect with the endpoints or patch fibers. Alternatively, the male connector on the pigtail can be put into an optical transceiver.

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