CWDM SFP

CWDM SFP 是一种面向城域网接入层的低成本WDM传输技术。CWDM SFP光模块采用CWDM 技术，可以通过外接波分复用器，将不同波长的光信号复合在一起，通过一根光纤进行传输，从而节约光纤资源。同时，接收端需要使用波分解复用器对复光信号进行分解。CWDM SFP光模块分为18个波段，从1270nm~1610nm，每两个波段之间相隔20nm。

与传统的TDM方式相比，CWDM SFP具有速率和协议透明性，这使之更适应城域网高速数据业务的发展。城域网中有许多不同协议和不同的速率的业务，CWDM 提供了在一根光纤上提供不同速率的、对协议透明的传输通道，如以太网、ATM、POS、SDH等，而且CWDM 的透明性和分插复用功能可以允许使用者直接上下某一个波长，而不用转换原始信号的格式。也就是说，光层提供了独立于业务层的传送结构。

CWDM 具有很好的灵活性和可扩展性。对于城域业务来讲，业务提供的灵活性，特别是业务提供速度和随着业务发展进行扩展的能力非常重要。利用CWDM 技术可以在1 天或者几个小时的时间内为用户开通业务，而且可以随着业务量的增加，可以通过插入新的OTU板进行容量的扩展。提高业务质量。在城域网中应用CWDM 系统可以使光层恢复成为可能。光层恢复比电层恢复要经济得多。考虑到光层恢复是独立于业务和速率的，那么原来一些自身体制无保护功能的体系（如千兆以太网），则可以利用CWDM 来进行保护。

由于CWDM 技术的上述优点，所以CWDM SFP在电信、广电、企业网、校园网等领域获得越来越多的应用

CWDM SFP

2.67Gbps CWDM SFP Optical Transceiver, 40km Reach

2.67Gbps CWDM SFP Optical Transceiver, 40km Reach

Description
The SFP transceivers are high performance, cost effective modules supporting dual data-rate of 2.67Gbps and 40km transmission distance with SMF.The transceiver consists of three sections: a CWDM DFB laser transmitter, a PIN or APD photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit.

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2.67Gbps CWDM SFP Optical Transceiver, 80km Reach

2.67Gbps CWDM SFP Optical Transceiver, 80km Reach

Description
The SFP transceivers are high performance, cost effective modules supporting data-rate of 2.67Gbps and 80km transmission distance with SMF.The transceiver consists of three sections: an uncooled CWDM DFB laser transmitter, an APD photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit.

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25G CWDM SFP28光模块（10km）

25G CWDM SFP28光模块（10km）

设计用于双工单模光纤上的25G eCPRI 2.0 CWDM链路

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4.25G CWDM SFP

4.25G CWDM SFP 3KM Transceiver
4.25G CWDM SFP 10KM Transceiver
4.25G CWDM SFP 20KM Transceiver
4.25G CWDM SFP 40KM Transceiver
4.25G CWDM SFP 60KM Transceiver
4.25G CWDM SFP 80KM Transceiver
4.25G CWDM SFP 100KM Transceiver
4.25G CWDM SFP 120KM Transceiver
4.25G CWDM SFP 160KM Transceiver

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622M CWDM SFP

622M CWDM SFP 3KM Transceiver
622M CWDM SFP 10KM Transceiver
622M CWDM SFP 20KM Transceiver
622M CWDM SFP 40KM Transceiver
622M CWDM SFP 60KM Transceiver
622M CWDM SFP 80KM Transceiver
622M CWDM SFP 100KM Transceiver
622M CWDM SFP 120KM Transceiver
622M CWDM SFP 160KM Transceiver

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CWDM SFP

CWDM SFP

SFP transceivers are designed to support SONET/SDH, Gigabit Ethernet, Fibre Channel, and other communications standards SFP transceivers are available with a variety of different transmitter and receiver types, allowing users to select the appropriate transceiver for each link to provide the required optical reach over the available optical fiber.

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