In-line optic attenuators for optical fibers

Details In-line optic attenuators for optical fibers In-line optic attenuators for optical fibers

1979-04-03

1981-04-14

Smith, Alfred E.

350 962, 350 9621, G02B 514

Patent

active

042616409

ABSTRACT:
In testing systems using fiber optic lengths, it is desirable to have means to simulate long lengths of such fiber optic lengths. To accomplish this, a device and a method are provided for holding first and second optic fibers which have a combined attenuation less than that which it is desired to simulate. An optical attenuator is then inserted between respective ends of said first and second optic fibers. The degree of attenuation of the optical attenuator is set to correspond to the attenuation of the length to be simulated minus the combined attenuation of the first and second optic fibers. In most testing situations, the attenuation of the first and second fibers is negligible in comparison with the much longer length of optic fiber being simulated, so that essentially the entire attenuation is provided by the optical attenuator. In addition to being used to simulate long length optic fibers for test conditions, the method and device can also be used to equalize the attenuation of optic fibers running in parallel with each other where the optic fibers have different degrees of attenuation.

REFERENCES:
patent: 1479051 (1924-01-01), Best
patent: 2256595 (1941-09-01), Metcalf
patent: 2324304 (1943-07-01), Katzman
patent: 3255357 (1966-06-01), Kapany et al.
patent: 3639769 (1972-02-01), Clark
patent: 3706053 (1972-12-01), Iwakami
patent: 3944327 (1976-03-01), Larsen
patent: 3995935 (1976-12-01), McCartney
patent: 4087158 (1978-05-01), Lewis et al.
patent: 4118105 (1978-10-01), Voigt
patent: 4121884 (1978-10-01), Greenwood

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