Commonly used wavelength componentsmultiplexer/Demultiplexing device

Beijing Jinkun Technology Co., Ltdwww.jon-kon.com（Commonly used wavelength componentsmultiplexer/Demultiplexing device）
1Introduction
DWDMTechnology is here90Appeared in the early years, but95Before the New Year, there was no rapid development, one of the reasons being that wavelength division multiplexing was constrained by the level of device development, and key device technologies were not yet mature, such as wavelength division multiplexers（Demultiplexers and optical amplifiers90Commercial use only began at the beginning of the decade, and based on erbium-doped fiber amplifiers）DFAof（1550nmWindow)DWDMThe system, in90The fast lane of development that began in the mid-19th century. This article introduces the core component of wavelength division multiplexing system, wavelength divisionmultiplexer/Demultiplexing deviceThe characteristics.

2、 Optical wavelength divisionmultiplexerDemultiplexing deviceType and parameter requirements
The optical wavelength division multiplexer uses passive optical components tonxλThe optical signals of the road are collected in an analog manner into an optical fiber, and the signals are superimposed on each other in power and separated in frequency spectrum. The quality of its characteristics largely determines the performance of the entire system. Optical wavelength division multiplexing technology mainly includes: array waveguide technology, diffraction grating technology, interference thin film technology, and fiber Bragg grating technology, etc/Optical wavelength division multiplexing technology also includes coupler technology, commonly used optical wavesDecompose and ReuseTechnology as shown in the diagram1As shown.

Beijing Jinkun Technology Co., Ltdwww.jon-kon.com