Optical microphone with rectangular fiber optics

Details Optical microphone with rectangular fiber optics Optical microphone with rectangular fiber optics

1978-08-25

1979-09-04

Stellar, George G.

H04R 2300

Patent

active

041669320

ABSTRACT:
An acousto-optic transducer which may be employed in a telephone subscriber instrument is described in which movement of a diaphragm varies the degree of coupling between the ends of two rectangular optical fibers having rectangular cross sections and which are coupled to the diaphragm for linearly amplitude modulating light signals passing between the fiber ends.

REFERENCES:
patent: 3818369 (1974-06-01), Brocker

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