ranking Sort Sort   |   date Sort Sort   |   member Sort Sort
Syndication

0
Date Submitted Tue. May. 28th, 2013 10:24 AM
Revision 1
Scripter mikofy
Tags coupler | EPON | fiber | OLT | OLT/ONU | optic
Comments 0 comments
PON ( Passive Optical Network) refers to the optical distribution network doesn't contain any digital camera and electronic power, optical distribution network (ODN) all by the optical splitter and other passive components, without the need for expensive electronic equipment, is really a type of fiber-optic access network. PON cuts down on the amount of fiber and central office equipment required compared with point-to-point architectures.

A PON consists of an optical line terminal (OLT) at the service provider's central office and a quantity of optical network units (ONUs) near end users. In OLT/ONU between the optical distribution network includes optical fiber and passive optical splitter or Fiber Optic Coupler.

OLT
An OLT, generally an Ethernet switch, router, or multimedia conversion platform, is located in the central office (CO) like a core device from the whole EPON system to provide core data and video-to-telephone network interfaces for EPON and also the company.

ONU
ONUs are utilized to connect the client premise equipment, for example PCs, set-top boxes (STBs), and switches. Generally placed at customer's home, corridors, or roadsides, ONUs are mainly accountable for forwarding uplink data sent by customer premise equipment (from ONU to OLT) and selectively receiving downlink broadcasts forwarded by OLTs (from OLT to ONU).

ODN
An ODN includes optical fibers, a number of passive optical splitters (POSs), and other passive optical components. ODNs provide optical signal transmission paths between OLTs and ONUs. A POS can couple uplink data right into a single bit of fiber and distribute downlink data to respective ONUs.

There are two passive optical network technologies: Ethernet PON (EPON) and gigabit PON (GPON). EPON and GPON are used in different situations, and every offers its very own advantages in subscriber access networks. EPON concentrates on FTTH applications while GPON concentrates on full service support, including both new services and existing traditional services for example ATM and TDM.

EPON is really a Passive Optical Network which carries Ethernet frames encapsulated in 802.3 standards. It is a mixture of the Ethernet technology and also the PON technology in compliance using the IEEE 802.3ah standards issued in June, 2004. A typical EPON system consists of three components: EPON OLT, EPON ONU and EPON ODN. It has many advantages, for example lower operation and maintenance costs, long distances and higher bandwidths.

GPON utilizes point-to-multipoint topology. GPON standard differs from other PON standards for the reason that it achieves higher bandwidth and higher efficiency using larger, variable-length packets. And GPON is generally considered the best candidate for widespread deployments. GPON includes a downstream capacity of 2.488 Gb/s as well as an upstream capacity of 1.244 Gbp/s that's shared among users.

There are also many differences between EPON and GPON. EPON, based on Ethernet technology, is compliant using the IEEE 802.3ah Ethernet in the First Mile standard that's now merged in to the IEEE Standard 802.3-2005. It's a solution for the "first mile" optical access network. GPON, on the other hand, is a vital approach to enable full service access network. Its requirements were set force by the Full Service Access Network (FASN) group, which was later adopted by ITU-T as the G.984.x standards-an addition to ITU-T recommendation, G.983, which details broadband PON (BPON).

Both EPON and GPON are known as international standards. They cover exactly the same network topology methods and FTTx applications, incorporate exactly the same WDM technology, delivering the same wavelength both upstream and downstream together with a third party wavelength. PON technology provides triple-play, Ip address TV (IPTV) and cable television (CATV) video services.

Source from EPON And GPON Of Passive Optical Network
1
Date Submitted Tue. Mar. 12th, 2013 8:39 AM
Revision 1
Syntax Master claireling
Tags blockles | coupler | FBT | fiber | optic | splitter
Comments 0 comments
As the optical fiber communication industry recovery and also the growth and development of FTTX, fiber optic coupler splitter market early in the year is originating. Optical divider currently basically has two types: the first is the traditional optical passive components production technology (FBT splitter) output of fused taper fiber divider; Amazing . to make use of a optical technology output of planar optical waveguide branching device (PLC).Fundamentally the two form of fiber splitter share the same spectroscopic principle. Both of them are coupled to each other by changing the optical fiber between the evanescent field (the degree of coupling, the coupling length) in addition to alter the radius with the optical slender to attain different size branching amount.Fiberstore give you the FBT splitter and PLC Splitter.You'll find them inside our store.

FBT splitter:

FBT splitter based about the traditional technology, it is to bundle together several optical fibers, and then pull the cone machine melt stretching, and real-time monitoring the alteration with the ratio, spectral ratio requirements after melt stretching, one side retain just one fiber (all of those other cut) as input, one other end is a multi-channel output. Currently mature pull cone process once only one x 4 below. Greater than 1 x 4 devices, with more than 1 x 2 together. Overall packaging again inside the divider boxes.FBT Coupler is made for power splitting and tapping telecommunication equipment, CATV networks, and test equipment.

As a result of making approach to the FBT Coupler is simple, inexpensive, an easy task to hook up to external fiber in general, and resistance in for-mechanical vibration and temperature changes, and other advantages, it is now the mainstream manufacturing technology in current industry.

PLC Splitter:

PLC Splitter is really a hot research both at home and abroad today, with a decent prospect of application,PLC Splitter (Planar waveguide Circuit optical splitter) are developed using silica glass waveguide circuits and aligned fiber pigtails, integrated in a very miniature package. PLC splitters provide low-cost solution for optical signal distribution, with small form factor and superb reliability. They may be created for FTTx Passive Optical Networks, CWDM, DWDM and optical cable television System. As an example,the blockless plc splitter module is one of PLC Splitter,it uses PLC & Package technology to separate one wavelength into many ports, from 4 approach to 32 way. It's no fan-out block so you can save space and achieve smaller splitter modules.

Advantages:

FBT splitter: Inexpensive, raw materials gotten easily (quartz substrate , stainless steel, fiber, hot dorm, GEL), splitting ratio in line with the needs of real-time monitoring, can make unequal splitting ratio.

PLC Splitter: Loss just isn't responsive to the wavelength with the transmitted , to fulfill the transmission requirements of various wavelength, spectral uniformity, the typical signal assigned to the consumer, compact structure, small volume, low priced more points, the more obvious cost advantage.

Disadvantages:

FBT splitter: Loss sensitive wavelength, the different wavelengths should be chosen different devices, the indegent uniformity, can't ensure uniform spectroscopic, insertion loss changes large with temperature variation is bigger.

PLC Splitter:The device fabrication process complexity, high technical threshold.
1
Date Submitted Mon. Mar. 4th, 2013 9:40 AM
Revision 1
Syntax Master claireling
Tags 1x2 | coupler | fiber | optic | splitter
Comments 0 comments
Combined with optical fiber communication, optical fiber sensing optical network technology development, the optical fiber system matures, application fields expanding, and fiber optic system structure is complicated, make all sorts of passive functional device gradually developed, fiber optic coupler splitter is really a kind among them.

Using a fiber optic coupler, the lighting from an input fiber can seem at a number of outputs, Fiber optic coupler is surely an optical fiber device with one or more input fibers then one or several output fibers,Its input and output signals have a good separation effect. Light entering a port fiber can appear at a number of outputs and its particular power distribution potentially based on the wavelength and polarization. So it's popular in circuit applications. Fiber optic coupler can greatly boost the stability laptop or computer when used in digital communication and real-time computer control interface being a signal isolation device.

Fiber optic couplers or splitters are available in a selection of styles and sizes to separate or combine light with minimal loss. All couplers are produced employing a proprietary procedure that produces reliable, low-cost devices. They're rugged and impervious to common high operating temperatures. Couplers can be fabricated with custom fiber lengths and/or with terminations of any type.

If all involved fibers of the fiber coupler are single-mode ,there are certain physical restrictions on the performance with the coupler. as an example, it isn't easy to combine two inputs of the same optical frequency into one single-polarization output without significant excess losses. However, a fiber optic coupler which may combine two inputs at different wavelengths into one output,which can be commonly observed in fiber amplifiers to mix the signal input as well as the pump wave.

Single Window FBT Coupler are equipped for power splitting and tapping in telecommunication equipment, CATV network, and test equiptment. Our single mode optical couplers work at either 1310nm or 1490nm or 1550nm. They are fabricated using single mode fibers. Single Window FBT Coupler have operation bandwidth of 40nm around its central wavelength. For example 1x2 fiber coupler is just one of single-mode fiber couplers.

Don't forget, fiber couplers not merely have single-mode couplers,but also have multimode couplers.Multimode Coupler is fabricated from graded index fibers with core diameters of 50um or 62.5um. Fiber optic multimode couplers are utilized for short distance communications at 1310nm or 850nm. Multimode couplers are produced utilizing a technique or fusion technique. They are available for many common multimode fibers with core diameters from 50¦̀m to 1500¦̀m.

To find out more about fiber optic coupler splitter, please contact us at sales@fiberstore.com.In Fiberstore,you'll find some fiber optic items that you would like.Buy with confidence.
0
Date Submitted Fri. Mar. 1st, 2013 9:49 AM
Revision 1
Syntax Master claireling
Tags coupler | fiber | optic | signal | splitter
Comments 0 comments
The use of fiber-optic technologies have become increasingly popular for a number of reasons. The fiber optic cable is very sensitive to electromagnetic interference, causing them to be more reliable than the old wiring. They are also able to conduct large amounts of data compared with what old system are designed for. This makes them far better, although the machine also offers some disadvantages. Need thicker the cable covering to protect the cables, they also must install a repeater to improve the signal strength for that system to work, hindered the usage of this technology.

Particular sorts of the fiber-optic splitter are actually capable of working in both direction. Which means in the event the system is installed in one of the ways, it provides a splitter and divides the incoming signal into two parts, sending out two separate outputs. If it's placed in reverse, it provides a fiber coupler, taking two incoming signals and combing them into a single output. Its not all fiber-optic splitter can be used in this way, but those who can are defined as reversible or as coupler/splitters.

Fiber Optic Splitter, also named beam splitter, is dependant on a quartz substrate of integrated waveguide optical power distribution device, just like coaxial cable transmission system, The optical network system also need to be an optical signal coupled to the branch distribution, which necessitates the fiber optic splitter, Is one of the most significant passive devices inside the optical fiber link, is optical fiber tandem device with many input terminals and many output terminals, Especially applicable to a passive optical network (EPON, GPON, BPON, FTTX, FTTH etc.) for connecting the MDF and the terminal equipment also to achieve the branching with the optical signal.A fiber optic signal splitter is really a device that can take an individual fiber optics signal and divides it into multiple signals.

Fiber optic splitter could be terminated with different forms of connectors, the key package could be box type or stainless tube type, you are usually used in combination with 2mm or 3mm outer diameter cable, one other is normally used in combination with 0.9mm outer diameter cables.Fiber Optic Splitter including fiber splitter single mode, multimode, and PM fiber types.Single window fiber optic splitter is to use one working wavelength, dual window fiber optic splitter is with two working wavelength. For multimode fiber, the term signifies that the fiber is optimized for 850 nm and 1310 nm operation. For single-mode fibers, the term signifies that the fiber is optimized for 1310 nm and 1550 nm operation. For single window fiber optic splitter, its working wavelength usually is among the above said wavelength.

Fiberstore is a professional manufacturer and supplier of Fiber Optic Splitter. We supply the Fiber Optic Splitter including PLC Splitter, PLC Splitter w/Fanout, Plastic ABS box PLC Splitter, LGX box PLC Splitter, FBT Coupler and so on.All of our fiber optic products are tested in-house ahead of shipping to guarantee that they can arrive in perfect physical and condition. We guarantee Fiber Optic Splitter to be effective in your system causing all of our Fiber Optic Splitter come with a lifetime advance replacement warranty.Your choice is our motivation.Thanks for visiting fiberstore.com .