Optical add and drop multiplexer with adaptive light power equalization function |
Title： |
| Optical add and drop multiplexer with adaptive light power equalization function |
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Application Number： |
01141720 |
Application Date： |
2001/09/14 |
Announcement Date： |
2002/02/20 |
Pub. Date： |
2004/01/07 |
Publication Number： |
1336741 |
Announcement Number： |
1134130 |
Grant Date： |
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Granted Pub. Date： |
2004-1-7 |
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
G02B 6/24, H04B 10/12, H04J 14/02 |
Applicant(s)： |
Qinghua Univ. |
Inventor(s)： |
Xu Zhigen, Zhang Hanyi, Guo Yili |
Key Words： |
Optical, add and drop multiplexer, adaptive, light power, equalization function |
Abstract： |
The invention multiplexer consists of light devided multiplexing unit, photo power real-time monitoring unit composed of photo-coupler, photo-detector connected with output terminal of the photo-coupler and driving circuit, power balancing unit composed of electrical tunable photo attenuators and power balance cotrolling unit. The lower signal terminal of the light device multiplexing unit is connected with said photo power real-time monitoring unit, and the upper one is connected with light input terminal of said power balancing unit. The electric controlled signal output terminal of said power balance controlling unit is connected with the electric controlled signal input teminal of said power balancing unit, and the input terminal is connected with lower terminal of said power real-time monitoring unit. The invention OADM has high stability, low leakage, low cost and and high balance precision etc. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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