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Proceedings Paper

Techniques and applications of coarse wavelength division multiplexing
Author(s): Huandong Zhao; Hao Chi; QingJi Zeng; Shilin Xiao; Min Jiang
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Paper Abstract

Coarse wavelength-division multiplexing (CWDM) is an ideal solution to the tradeoff between the cost and the capacity. Compared with DWDM, CWDM system deploys uncooled distributed feedback (DFB) lasers and wideband optical filters. These technologies provide several advantages to CWDM systems such as lower power dissipation, smaller size and less cost. For these merits mentioned above, the CWDM system will be widely used in the metro and access networks in the future. The CWDM system is scalable, but the scalability is limit. So, in some metro networks, it can¡¯t meet the increasing needs of the capacity. To solve this problem, there are a few of solutions proposed now, such as the TDM techniques and the combination with the DWDM that is applied in C band. In this paper, firstly, we will introduce the techniques of the CWDM, and explain the reasons of the less cost, and then the solutions to the scalability are presented in detail. At last we introduce the applications in the metro and access networks at present.

Paper Details

Date Published: 22 August 2002
PDF: 10 pages
Proc. SPIE 4908, Metro and Access Networks II, (22 August 2002); doi: 10.1117/12.480728
Show Author Affiliations
Huandong Zhao, Shanghai Jiaotong Univ. (China)
Hao Chi, Shanghai Jiaotong Univ. (China)
QingJi Zeng, Shanghai Jiaotong Univ. (China)
Shilin Xiao, Shanghai Jiaotong Univ. (China)
Min Jiang, Shanghai Jiaotong Univ. (China)


Published in SPIE Proceedings Vol. 4908:
Metro and Access Networks II
Wanyi Gu; Cedric F. Lam; Yuan-Hao Lin, Editor(s)

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