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波分复用器

WDM Wavelength Division Multiplexing ，波分复用器
CWDM Coarse Wavelength Division Multiplexing ，稀疏波分复用器，也称粗波分复用器
DWDM Dense Wavelength Division Multiplexing ，密集波分复用器

WDM是将一系列载有信息、但波长不同的光信号合成一束，沿着单根光纤传输；在接收端再用某种方法，将各个不同波长的光信号分开的通信技术。这种技术可以同时在一根光纤上传输多路信号，每一路信号都由某种特定波长的光来传送，这就是一个波长信道。
在同一根光纤中同时让两个或两个以上的光波长信号通过不同光信道各自传输信息，称为光波分复用技术，简称WDM。光波分复用包括频分复用和波分复用。光频分复用（frequency-division multiplexing,FDM）技术和光波分复用（WDM）技术无明显区别，因为光波是电磁波的一部分，光的频率与波长具有单一对应关系。通常也可以这样理解，光频分复用指光频率的细分,光信道非常密集。光波分复用指光频率的粗分，光信道相隔较远，甚至处于光纤不同窗口。
光波分复用一般应用波长分割复用器和解复用器（也称合波/分波器）分别置于光纤两端，实现不同光波的耦合与分离。这两个器件的原理是相同的。光波分复用器的主要类型有熔融拉锥型，介质膜型，光栅型和平面型四种。其主要特性指标为插入损耗和隔离度。通常，由于光链路中使用波分复用设备后，光链路损耗的增加量称为波分复用的插入损耗。当波长11,l2通过同一光纤传送时，在与分波器中输入端l2的功率与11输出端光纤中混入的功率之间的差值称为隔离度。
现在市场使用WDM技术的产品主要有CWDM和DWDM。

波分复用器

AWG DWDM波分复用器 (29)

40-CH 100G Athermal AWG Use within the C -band release of DWDM system Offer different product packages, including special metal box and 19” 1U rackmount. Established silica-on-silicon Low chromatic dispersion 40-CH 100G Thermal AWG Use within the C -band release of DWDM system Offer different product packages, including special metal box and 19” 1U rackmount. Established silica-on-silicon Low chromatic dispersion 80-CH 50G AWG 80-CH 50G Athermal AWG module in 1U Rackmount

Fused WDM波分复用器 (44)

Fused Wavelength Division Multiplexer（1310/1550nm） Offer very low insertion loss, low polarization dependence, high isolation and excellent environmental stability Compact Size Top Quality-Price ratio Fused Wavelength Division Multiplexer（980/1550,1480/1550nm） Offer very low insertion loss, low polarization dependence, high isolation and excellent environmental stability Compact Size Top Quality-Price ratio Fused WDM Module（1310/1550nm） Top Quality-Price ratio Low insertion loss Long-HauI Uni and Bi-Directional Digital, Hybrid and Am-video Systems High-Speed Multi-Wavelength Systems

FWDM波分复用器 (6)

3 Ports Multimode FWDM（1310/1550nm） 3 Ports FWDM（1310/1550nm） 3 Ports FWDM（1310/1490/1550nm） 3 Ports FWDM（980/1550,1480/1550nm） FWDM Module Wide Operating Wavelength Range Ultra Flat Wide Passband High Stability and reliability Epoxy-free on Optical Path 3 port FWDM in 1U Rackmount Wide Operating Wavelength Range Ultra Flat Wide Passband Epoxy-free on Optical Path FTTH Tri-Play System

Mini微型粗波分复用器 (39)

F-tone’s Mini size Coarse Wavelength Division Multiplexers(Mini CWDM, MCWDM), are integrated optical modules using F-tone’s proprietary optical bench platform which can significantly improve optical performance, while also reduce manufacturing costs. Compare to the common standard CWDM module, F-tone's Mini CWDM takes much smaller package size. Much space can be saved in the application and meanwhile the performance and parameters are much better. All F-tone's CWDM modules are Telcordia qualified.(Meet TELCORDIA GR-1221-CORE)

其它种类波分复用器产品系列 (131)

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密集波分复用器 (27)

100GHz DWDM Module(4,8,16 Channel) 200GHz DWDM Module(4,8,16 Channel) 100G,200G 1X2 DWDM Device (3Ports) 100G,200G DWDM OADM Module (4,8-Channel) Provides ITU channel center wavelength, low insertion loss, high channel isolation, wide pass band, low temperature sensitivity and epoxy free optical path Wavelength add/drop in telecommunication network system 100GHz/200GHz DWDM Module in 1U Rackmount Wide pass band High Stability and reliability Epoxy-free on Optical Path Fiber Optical Amplifier 100GHz/200GHz DWDM Module in LGX Box Wide pass band High Stability and reliability Epoxy-free on Optical Path Fiber Optical Amplifier

粗波分复用器 (73)

CWDM是一种支持多协议传送的波分复用技术。CWDM系统利用复用器将不同波长承载的光信号复用至单根光纤进行传输，在链路的接收端，借助解复用器将分解后的波长送给不同的光纤，连接到相应的接收设备。CWDM信道间隔通常比DWDM宽得多，为区别起见，故称其为粗波分复用。

WDM模块 (3)

北亿纤通专业研发生产WDM模块，其主要产品有：AWG系列、TFF CWDM/LAN WDM Block、FA subassembly等

波分复用器

OLP光线路保护设备,OLP干线保护方案

北亿纤通开发的OLP光线路保护设备外观采用1U高度设计，可安装于标准的19寸机柜中。此 OLP设备用于1+1光纤链路备份，它能在主光路发生故障的情况下，自动切换到备用光路，以维持光信号的传输。

Items	18CH
Operating wavelength	1260-1620nm
Channel spacing	20nm
Passband	±6.5nm
Insertion Loss	≤2.5 dB
Adjacent ChannelIsolation	≥28dB
Non Adjacent ChannelIsolation	≥45dB
Return Loss	≥45 dB ( for UPC)、≥50 dB ( for APC)
PDL	≤0.2 dB
Ripple	≤0.5 dB
Directivity	≥50dB
Power handling	300mw
Package Dimension	L44xW41xH11mm