Optical transmission system

Details Optical transmission system Optical transmission system

1982-08-23

1985-08-06

Willis, Davis L.

Optics: measuring and testing

By particle light scattering

With photocell detection

356346, 356352, 356358, G01B 902

Patent

active

045332479

ABSTRACT:
An optical transmission system comprises a light source, which may be coherent or incoherent, a first optical interferometer wherein light from the source is modulated, an optical path, which may be either free space or an optical fiber, along which the modulated output of the first interferometer is propagated, a second interferometer wherein light received from the optical path is demodulated, and a photodetector to which the demodulated output is applied. Typically the first interferometers is a Fabry-Perot etalon, the length of the resonant cavity of which can be altered to modulate light applied thereto.

REFERENCES:
patent: 3319515 (1967-05-01), Flournoy
patent: 4329058 (1982-05-01), James et al.
patent: 4355898 (1982-10-01), Dakin
Ramsay et al., "Communication Using Frequency-Modulated Light", Proc. I. R. E. Australia, pp. 673-677, Sep. 1963.
Goedgebuer et al., "Construction of an Interferometric Gauge . . . " Optics and Laser Technology, vol. 10, No. 4, pp. 193-196, 8/78.

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