FBT splitter And PLC Splitter For Sale In Fiberstore

As the optical fiber communication industry recovery and the development of FTTX, fiber optic coupler splitter market in the spring is coming. Optical divider at present basically has two types: one is the traditional optical passive components production technology (FBT splitter) production of fused taper fiber divider; Another is to use an integrated optical technology production of planar optical waveguide branching device (PLC).Basically the two type of fiber splitter share the similar 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) as well as to change the radius of the optical slender to achieve different size branching amount.Fiberstore supply the FBT splitter and PLC Splitter.You can find them in our store.

FBT splitter

FBT splitter based on the traditional technology, it is to bundle together two or more optical fibers, and then pull the cone machine melt stretching, and real-time monitoring the change of the ratio, spectral ratio requirements after melt stretching, one side retain a single fiber (the rest of the cut) as input, the other end is a multi-channel output. At present mature pull cone process once only 1 x 4 below. More than 1 x 4 devices, with more than 1 x 2 together. Overall packaging again in the divider boxes.FBT Coupler is designed for power splitting and tapping telecommunication equipment, CATV networks, and test equipment.

Due to the making method of the FBT Coupler is simple, inexpensive, easy to connect to external fiber as a whole, and resistance in for-mechanical vibration and temperature changes, and other advantages, it has become the mainstream manufacturing technology in current the market.

PLC Splitter

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


FBT splitter: Low cost, raw materials gotten easily (quartz substrate , stainless steel, fiber, hot dorm, GEL), splitting ratio according to the needs of real-time monitoring, can make unequal splitting ratio.

PLC Splitter: Loss is not sensitive to the wavelength of the transmitted , to meet the transmission requirements of different wavelength, spectral uniformity, the average signal assigned to the user, compact structure, small volume, low cost of more points, the more obvious cost advantage.


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

PLC Splitter:The device fabrication process complexity, high technical threshold.

Relationship Between The Coupler And Splitter

Relationship between the coupler and splitter:In fact, splitter is named for the function of the device, coulper named for its working principle, splitter may be based coupler, and may be based on the waveguide or the separating element, coupler can be done either the splitter, but also can be done WDM, attenuator.


Fiber optic couplers either split optical signals into multiple paths or combine multiple signals on one path. Optical signals are more complex than electrical signals, making optical couplers trickier to design than their electrical counterparts. Like electrical currents, a flow of signal carriers, in this case photons, comprise the optical signal. However, an optical signal does not flow through the receiver to the ground. Rather, at the receiver, a detector absorbs the signal flow. Multiple receivers, connected in a series, would receive no signal past the first receiver which would absorb the entire signal. Thus, multiple parallel optical output ports must divide the signal between the ports, reducing its magnitude. The number of input and output ports, expressed as an N x M configuration, characterizes a coupler. The letter N represents the number of input fibers, and M represents the number of output fibers. Fused couplers can be made in any configuration, but they commonly use multiples of two (2 x 2, 4 x 4, 8 x 8, etc.).


Fiber optic splitter is a device that split the fiber optic light into several parts by a certain ratio. The simplest couplers are fiber optic splitters. These devices possess at least three ports but may have more than 32 for more complex devices.Fiber optic splitters are important passive components used in FTTX networks. But two kinds of fiber splitters are popular used, one is the traditional fused type fiber optic splitter (FBT splitter), which features competitive prices; the other is PLC fiber optic splitter, which is compact size and suit for density applications. Both of them have its advantages to suit for different requirement.

Fiber optic splitter typical parameter include input and output part cable length, splitting ratio, working wavelength and with what kind of fiber optic connectors. Just like fiber patch cable, fiber splitters are usually with 0.9mm, 2mm or 3mm cables. 0.9mm outer diameter cable is mostly used in stainless steel tube package fiber optic splitters, while 2mm and 3mm cables are mostly used in box type package fiber splitters. Based on working wavelength difference there are single window and dual window fiber optic splitters. And there are single mode fiber splitter and multimode fiber splitter. Typical connectors installed on the fiber optic splitters are FC or SC type.

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 or with terminations of any type. For more information about Coupler or Splitter, please contact us at sales@fiberstore.com .Fiberstore is your better chioce in fiber splitters.