Fiber optic calibration standard apparatus

Details Fiber optic calibration standard apparatus Fiber optic calibration standard apparatus

1990-05-25

1991-10-15

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

356 731, G01N 2100

Patent

active

050569155

ABSTRACT:
A fiber optic calibration standard apparatus having a fiber optic cable pair which have difference in length of one quarter the wavelength of the applied modulated signal and are coupled to a mirrored reflecting surface to provide reflection reference signals that are utilized to generate error correction signals. A matched termination has one end of an optical fiber sealed in a vial of index matching fluid to absorb the optical power incident to the fiber.

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patent: 4551020 (1985-11-01), Reid et al.
patent: 4816669 (1989-03-01), Andersen
patent: 4921347 (1990-05-01), Wong et al.

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