Coarse Wavelength Division Multiplexer-Yucoo Network Equipment Co., Limited

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　Coarse Wavelength Division Multiplexer

Summary:

　　YK-CWDM（Coarse Wavelength Division Multiplexer）Coarse Wave Division Multiplexing Systems or Coarse Wavelength Division Multiplexer. With the Internet's rapid growth in IP data services ,the economical and practical short-distance WDM transmission systems，make a good result in increased demand for bandwidth transmission line.Although DWDM (Dense Wavelength Division Multiplexing) technology as the most effective solution for bandwidth expansion method of lines, the system cost, versatility and maintainability of the CWDM technology are more advantage than DWDM technology. In metro applications, CWDM technology becommes more and more people being recognized and practical。Network transmission bandwidth gradually shifted to the MAN，and the MAN construction becomes current hot spotinnetwork construction part.As the coarse WDM systems (CWDM) technology have a unique advantages in the MAN building,so it becomes more and more attention. 　

Coarse Wavelength Division Multiplexer（CWDM）can save the cost of optical resources and networking effectively.At the same time, It solves two issues that the shortage of fiber and multi-service transparent transmission.CWDM mainly apply in MAN aggregation and access layer.It can build networks and business in a short time . Now CWDM in WAN transmission has a large number of applications already.

Networking Application:

Product Classification:

Coarse Wavelength Division Multiplexer

1.Using the the most advanced 3R technology（reamplifying、reshaping and retiming）to make sure the long-distance signal transmission.
2. The equipment has a large capacity.
3. The equipment can reusable a variety of configuration framework so that it can save cost for network transformation.
4.At present,using the single-mode optical fiber transmission can achieve 8-channel multiplexed.at the same time, the transfer rate of each channel can reach 2.5Gbit/s, With the channels increase,, the rate also on the rise and the total capacity up to 20Gbit / s. It can upgrade to 18 channels if using the full-wave fiber optic lines.and each channel rate of up to 10Gbit / s, a total capacity of up to 180Gbit / s.
5. Apply in a variety of rates of multi-service interface to support Ethernet, PDH, SDH, Fiber Channel and other wireless connectivity.
6. A variety of specifications transmission distance: two equipments connect each other without anything and it transmission distance though point to point: 30km, 50km, 80km.
7. Have a good scalability: 2 wave 3 wave 4 wave, 5 waves, 6 waves, seven waves, eight waves.
8. Opening architecture: Support for client-side access to different vendors,and interconnection 、exchange with a variety of device from different manufacturers. Through point to point transmission can amplify the light signal.
　　

Parameter:

Coarse Wavelength Division Multiplexer

1、General Specifications
A.Maximum capacity: 4-wave (10G) 8 wave (20G) 18 Wave (180G, full-wave and optical fiber).
B.Wavelength range: according to ITU-I G.695 standard.　
C.Service Access Types：PDH 、ATM、SDH（STM-16/STM-4/STM-1）、SONET（OC-48/OC-12/OC-32）、Ethernet 10/100BaseT、GE、FICON/ESCON/FIBER Channel.
D.Optical interface transmission：155Mbit/s、622Mbit/s、1.25Gbit/s、2.5Gbit/s;
E.Fiber Type：G.652 、G.653、 G.655.
F.Transmission Distance：30km、50km、80km optional.

2、Optical indicators
Central wavelength：1470nm、1490nm、1510nm、1530nm、1550nm、1570nm、1590nm、1610nm
Wavelength interval：20nm
Mitsumichi width：+/- 6 nm
Emission center wavelength of the temperature drift：0.08nm-0.1nm/°C
Launched optical power of each wave：-5dBm～+3dBm
Received optical power of each wave：-24dBm～-3dBm
Received Sensitivity：<-32dBm

3、External interface features
Line-side FC interfaces can provide fiber optic adapters and fiber jumpers, etc.
The client　LC interface can provide fiber optic adapters and fiber jumpers, etc.
Client wavelength range: Single-mode: 1200nm ~ 1610nm; multi-mode: 850nm .
Fiber Optic Patch Cord: G.652 G.653 G.655 single-mode fiber (client can be multi-mode fiber)