Optical simulator with loop-back attenuator and filter

Details Optical simulator with loop-back attenuator and filter Optical simulator with loop-back attenuator and filter

1990-01-03

1991-01-01

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

350 962, 356 731, H01J 516, H01J 4014, G01N 2100

Patent

active

049820834

ABSTRACT:
An optical simulator 10, shaped to be interchangeable with a complementary connector 7 that intermates with an optical connector 6 having an optical emitter 4 and an optical detector 5, comprises an alignment fixture 12 with connectors 21 and 22 for intermating with the optical emitter 4 and the optical detector 5, and an optical fiber 11 formed in a loop and installed within the alignment fixture 12 with a first end face 39 of the loop 11 aligned through a corresponding alignment fixture connector 24, with the emitter 4 and a second end face 37 of the loop 11 aligned through a corresponding alignment fixture 25, with the detector 5 of the optical connector 6. The optical fiber 11 is formed in a loop further having an optical filter 43 attached to an end face 37 to provide controlled attenuation of optical power to the detector 5.

REFERENCES:
patent: 3628039 (1971-12-01), Ochs
patent: 3999837 (1976-12-01), Bowen et al.
patent: 4081258 (1978-03-01), Goell et al.
patent: 4261640 (1979-04-01), Stankos et al.
patent: 4702549 (1984-08-01), Duck et al.
patent: 4708422 (1987-11-01), Hanoux et al.
patent: 4736100 (1988-04-01), Vastagh
Macleod, Thin-Film Optical Filters, McMillian Publishing Co, New York 1986, pp. 164-165 & 155-157.
"Schott Filter Glass Catalog," Number 3566E/U.S.A. iii/87/o.P/Printed in West Germany, Schott Glass Technologies Inc. 1987.

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