发明名称 |
Output power monotoring in an optical preamplifier |
摘要 |
<p>Tapless output power monitoring is used when amplifying and converting an optical signal to an electrical signal, e.g., in a communications receiver of an optical transmission system. An optical preamplifier amplifies an intensity-modulated optical input signal to produce an amplified intensity-modulated optical signal. An optical-to-electrical (O-E) converter demodulates and converts the amplified intensity-modulated optical signal into an electrical output signal. A current monitor monitors a DC bias current of the optical-to-electrical (O-E) converter and produces a feedback signal proportional to the DC bias current. The optical preamplifier adjusts the gain of the amplified optical signal based on the feedback signal. <IMAGE></p> |
申请公布号 |
EP1313183(A2) |
申请公布日期 |
2003.05.21 |
申请号 |
EP20020257191 |
申请日期 |
2002.10.16 |
申请人 |
TYCO TELECOMMUNICATIONS (US) INC. |
发明人 |
DOMAGALA, JERZY;SCHUBE, SCOTT A. |
分类号 |
H01S3/13;H01S3/131;H01S5/0683;H01S5/50;(IPC1-7):H01S3/13;H01S5/068;H01S3/067 |
主分类号 |
H01S3/13 |
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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