发明名称 |
Dynamic gain control system for optical amplifier and method thereof |
摘要 |
The dynamic gain control system includes a pump source providing pump light. The dynamic gain control system measures a certain portion of the input pump light into the optical amplifier and measures a certain portion of the output pump light from the optical amplifier. The dynamic gain control determines the pump light loss based on the input pump light and output pump light measurements. Based on the pump light loss, the dynamic gain control system maintains the pump light loss relatively constant (for example 0.1 dB) independent of the number of input channels and their relative powers (for example, input channel powers of +50 dBm to 10 dBm) by providing feedback to control the output pump light. In doing so, the dynamic gain control system maintains the inversion level of the optical amplifier. A relatively constant inversion level corresponds to only small variations in the gains of the input channels (multi-channel gain) as a result of changes in the input channels to the optical amplifier.
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申请公布号 |
US5923462(A) |
申请公布日期 |
1999.07.13 |
申请号 |
US19970828444 |
申请日期 |
1997.03.28 |
申请人 |
LUCENT TECHNOLOGIES INC. |
发明人 |
VAN DER PLAATS, JOHANNES CHRISTIAAN |
分类号 |
H01S3/094;H01S3/06;H01S3/10;H01S3/13;H04B10/17;(IPC1-7):H01S3/00 |
主分类号 |
H01S3/094 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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