Light add and drop multiplexer for multi-wave length adaptive light power equalization |
Title： |
| Light add and drop multiplexer for multi-wave length adaptive light power equalization |
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Application Number： |
01136574 |
Application Date： |
2001/10/19 |
Announcement Date： |
2002/03/13 |
Pub. Date： |
2004/01/07 |
Publication Number： |
1339891 |
Announcement Number： |
1134129 |
Grant Date： |
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Granted Pub. Date： |
2004-1-7 |
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
G02B 6/26, H04B 10/02, H04J 14/02, H04Q 3/52 |
Applicant(s)： |
Qinghua Univ. |
Inventor(s)： |
Xu Zhigen, Zhang Hanyi, Li Yanhe |
Key Words： |
Light add and drop, multiplexer, multi-wave length, adaptive, light power equalization |
Abstract： |
The present invention belongs to the field of light communication network technology. The multiplexer includes: multiple wavelength entrance and exit unit, real-time light power monitoring unit comprising light coupler, light detector and drive circuit, power equalizing unit with electrically tunable light attenuator and power equalizing control unit connected successively. The optical add and drop multiplexer (OADM) of the present invention has high stability, low leakge, low cross talk, low loss, being modular and intelligent and high equalizing precision and has excellent application prospect. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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