2012年8月7日星期二

Fiber Optic Splitters

Fiber optic splitter is used to split one beam of optical fiber light into several parts at a certain ratio, for example, a 1X4 LC type equal splitting ratio fiber optic splitter can split the fiber optic light signal into four equal 25% parts and sent to the 4 different channels, LC is the connector type on the splitters. Fiber optic splitter key parameters include the optical loss, splitting ratio, isolation, PDL etc.

Fiber Optic Splitter Features

Single Mode, multimode, and PM fiber types
Multiple port configurations
Various splitting ratios, 50:50 to 1:99
Tube type or Box type
PC, UPC, and APC fiber optic connectors
Available with FC, SC, ST, LC, and MU terminations

Fiber Optic Splitters Introduction

fiber optic splitter is a device that split the fiber optic light into several parts by a certain ratio. For example, when a beam of fiber optic light transmitted from a 1X4 equal ratio splitter, it will be divided into 4-fiber optic light by equal ratio that is each beam is 25% of the original one. fiber optic splitter is different from WDM. WDM can divide the different wavelength fiber optic light into different channels. fiber optic splitter divide the light power and send it to different channels.

Single window Fiber Optic Splitter and dual window Fiber Optic Splitters
Here the window refers to the working wavelength. Single window fiber optic splitter is with one working wavelength, dual window fiber optic splitter is with two working wavelength. For multimode fiber, the term means that the fiber is optimized for 850 nm and 1310 nm operation. For single-mode fibers, the term means that the fiber is optimized for 1310 nm and 1550 nm operation. For single window fiber optic splitter, its working wavelength usually is one of the above said wavelength.

PLC Splitter
Planar waveguide is a micro-optical components products, the use of lithography, the semiconductor substrate in the medium or the formation of optical waveguide, to achieve branch distribution function.
PLC splitter package is on the light guide path in the planar waveguide splitter (ie, the fiber waveguide path) and the fiber array-aligned, and then stick with plastic (such as epoxy glue) A combined technology. PLC splitter and fiber array alignment accuracy is the key to this technology. PLC splitter package relates to the six-dimensional fiber arrays and waveguide close alignment difficult.When using manual operation, the drawback is low efficiency, poor reproducibility, and human factors are many and difficult to achieve large-scale production.
PLC splitter using semiconductor processes (lithography, corrosion, developing technology) production. Waveguide array in the chip surface, the shunt functions are integrated on the chip, which is implemented in a chip 1,1 such as shunt; the chip at both ends respectively coupled to the input and output multi-channel fiber array encapsulation.

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