Wavelength meter having single mode fiber optics multiplexed inp

Details Wavelength meter having single mode fiber optics multiplexed inp Wavelength meter having single mode fiber optics multiplexed inp

1991-02-21

1993-02-23

Moskowitz, Nelson

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrophotometer

372 32, 359123, 359135, 359138, 385 2, 358226, G02B 514, G01J 318

Patent

active

051894858

ABSTRACT:
A wavelength meter having a single mode fiber optics input is disclosed. The single mode fiber enables a plurality of laser beams to be multiplexed to form a multiplexed input to the wavelength meter. The wavelength meter can provide a determination of the wavelength of any one or all of the plurality of laser beams by suitable processing. Another aspect of the present invention is that one of the laser beams could be a known reference laser having a predetermined wavelength. Hence, the improved wavelength meter can provide an on-line calibration capability with the reference laser input as one of the plurality of laser beams.

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Levin et al, "Atomic Uranium . . . for LIS", Jun. 24, 1977, Laser Opto-Elect. Conf., pp. 137-144, Munich, Germany.
Tanaka et al, "Optical Multi/Demultiplexed", Oct. 1981, National Tech. Rept., vol. 27, #5, pp. 735-743.
Avery et al, "Computer-Controlled . . . Spectrophotometer" Aug. 1976, Analy. Chem., vol. 48, #9, pp. 1308-1313.
Nelson et al, "Electro-Optic Multiplexer . . . Fibers", Jul. 1977, Opt. Lett., vol. 1, #1, pp. 35-37.

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