Patent ID: 6819466
Filing Date: 2004-11-16
Classification: B82Y,G02F

Abstract:
An asymmetric Fabry-Perot modulator, comprising:a first reflector and a second reflector in said asymmetric Fabry-Perot modulator fanning a resonant cavity therebetween; electro-absorption material disposed between said first reflector and said second reflector, the absorption of said electro-absorption material being varied in response to an external modulating signal; a pair of electrodes dispose between the first reflector and the second reflector: said first reflector being fixedly mounted to a substrate; and said second reflector being movably mounted to said substrate so as to selectively adjust said resonant cavity formed between said first reflector and said second reflector from a given length to another given length by changing the position of said second reflector relative to said first reflector, wherein the movement of said second reflector is controlled in response to a voltage applied across the pair of electrodes and wherein the magnitude of light output from said first reflector is determined by the reflectivity of said first reflector, the reflectivity of said second reflector, the absorption in said electro-absorption material and the length of said resonant cavity as defined by said second reflector being movably mounted to said substrate.