发明名称 |
PHASE MODULATION |
摘要 |
A travelling wave laser amplifier (2) is operated as a phase modulator by applying a modulation signal on the bias injection current. To increase modulation frequency response at the higher end and to minimise unwanted amplitude modulation the input optical signal and injection bias current are preferably set so that the amplifier is running under saturated gain conditions. |
申请公布号 |
GB2254480(B) |
申请公布日期 |
1993.05.19 |
申请号 |
GB19910012112 |
申请日期 |
1991.06.03 |
申请人 |
* BRITISH TELECOMMUNICATIONS PLC |
发明人 |
JOHN * MELLIS |
分类号 |
G02F1/015;G02F;G02F1/35;H01S5/00;H01S5/062;H01S5/50;H04B10/155;H04B10/17 |
主分类号 |
G02F1/015 |
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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