Acoustical modulator for fiber optic transmission

Details Acoustical modulator for fiber optic transmission Acoustical modulator for fiber optic transmission

1980-02-20

1982-01-12

Farley, Richard A.

Communications, electrical: acoustic wave systems and devices

Signal transducers

367149, 350 9615, H04R 2300

Patent

active

043109055

ABSTRACT:
An acoustical sensor utilizing fiber optic transmission including an optical signal generator, a first single-fiber transmission line connected to the generator, and a coupler for receiving signals from the first line and transmitting the signals to a second single fiber which directs the signals to an acoustically sensitive reflective surface. The surface modulates the signal in accordance with acoustical signals applied to it and reflects at least part of the signal back to the fiber where it is transmitted to a third fiber by the coupler and then transmitted to an electronic receiver.

REFERENCES:
patent: 3175088 (1965-03-01), Herriott
patent: 3580082 (1971-05-01), Strack
patent: 3831137 (1974-08-01), Cuomo
patent: 3903496 (1975-09-01), Stimler
patent: 3940608 (1976-02-01), Kissinger et al.
patent: 4059338 (1977-11-01), Hartelius, Jr.
patent: 4071753 (1978-01-01), Fulenwider et al.
patent: 4158310 (1979-06-01), Ho
Jeunhomme et al., Applied Physics Letters, vol. 29, No. 8, Oct. 1976, pp. 485-487.

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