Planar Lightwave Circuit Splitter

Posted on by FS.COM

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Definition

SplittersPlanar light-wave circuit (PLC) splitter is a type of optical power management device that is fabricated using silica optical wave-guide technology to distribute optical signals from Central Office (CO) to multiple premise locations. It features small size, high reliability, wide operating wavelength range and good channel-to-channel uniformity, and is widely used in PON networks to realize optical signal power splitting. Fiberstore provides whole series of 1xN and 2xN splitter products that are tailored for specific applications. All products meet GR-1209-CORE and GR-1221-CORE requirements. PLC splitter module technology is the latest in passive, fiber-optic component manufacturing. It uses semiconductor (i.e. integrated circuit) fabrication techniques, to build compact, fiber-optic devices. This technique displaces fused-biconical taper devices for high-count splitters. The resulting devices are smaller and more robust.

Principle

PLC Splitter is based on Planar Lightwave Circuit technology and precision aligning process, can divide a single/dual optical input(s) into multiple optical outputs uniformly and is denoted 1xN or 2xN. PLC splitter is applied in FTTX developments, PON networks, CATV links and optical signal distribution currently. PLC Splitter offers superior optical performance, high stability and high reliability, meets various application requirements in different environments. The high quality performance such as low insertion loss, low PDL, high return loss and excellent uniformity over a wide wavelength range from 1260 nm to 1620 nm, and work in temperature from -40℃ to +85℃.

PLC based on ion exchange in glass has recently been extended to multimode waveguide structures with large core diameter. Monolithic multimode planar waveguides are now commercially available in form of fiber coupled optical waveguide systems. PLC splitter multimode waveguides are well suited for a variety of applications, especially where complex optical functionality needs to be integrated in a monolithic layout. Thus, compact functional elements with low insertion loss and low wavelength dependant losses can be designed for e.g. spectroscopy, medical science, optical power transfer, sensors, data and signal transfer and many others. Through their compact set-up they are easy to combine with lenses, filters and other micro-optical elements.

Compared with Couplers

Couplers and Splitter: Couplers are typically used where an aggregate of optical power is required. Therefore, Coupler Module is an assembly, which houses coupler components. These components combine optical power from two or more inputs.And the splitter applications are more common. Typically, they are used for video distribution or for data network monitoring. Inputs are divided and sent to several destinations (e.g. to neighborhoods for CATV). Alternatively, a low-power signal sample is “read-out” with minimal impact, to the link. Therefore, a Splitter Module is an assembly, which house splitter components. These components divide optical power to two or more outputs.

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