Optical fiber interface

Details Optical fiber interface Optical fiber interface

H - Electricity

04

B

H04B 10/12 (2006.01) G02B 6/35 (2006.01) G02B 6/42 (2006.01) H04B 10/08 (2006.01)

Patent

CA 2024271

An optical fiber interface includes a detector assembly, which may include an integral fiber, for detecting an optical signal carried on a single fiber in an outbound direction and a piezo electric transducer or the like for providing relative movement between the fiber and the detector assembly to produce a modulated return optical signal in reflections of the outbound signal. The return optical signal has a lower frequency or data rate than the outbound signal. Several embodiments modulate the return signal by relative movement either perpendicular to or parallel to the fiber. The perpendicular movement modulates the reflected signal by varying alignment of the fiber and detector assembly, while the parallel movement modulates by varying a Fabry-Perot gap formed between the fiber and the detector assembly. One embodiment includes a cantilever beam of semiconductor material attached to the detector surface. The beam providing an integrated transducer and reflecting surface.

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