| 摘要 |
A high efficiency optical feedback modulator and method of operation are provided. The high efficiency optical feedback modulator ( 30 ) includes an optical modulator ( 52 ) and an optical feedback system ( 54 ). The optical modulator ( 52 ) includes first and second optical inputs ( 66 a , 68 a) and first and second optical outputs ( 66 b , 68 b). The optical feedback system ( 54 ) is coupled between the second optical output ( 68 b) and the second optical input ( 68 a). The second optical input ( 68 a) receives an optical feedback signal ( 70 ) from the optical feedback system ( 54 ). The first optical input ( 66 a) receives an input light beam ( 56 ). The input light beam ( 56 ) and the optical feedback signal ( 70 ) are modulated with an electronic input signal ( 26 a) to produce a high modulation depth optical signal ( 36 ) output from the first optical output ( 66 b). The high efficiency optical feedback modulator ( 30 ) achieves a slope efficiency that is an order of magnitude better than conventional optical modulators, corresponding to an RF link gain improvement of 100 times better than conventional optical modulators.
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