System for producing spectrally pure optical pumping light

Details System for producing spectrally pure optical pumping light System for producing spectrally pure optical pumping light

1987-04-06

1989-08-29

Moskowitz, Nelson

Amplifiers

Parametric amplifiers

Semiconductor type

350312, G02B 520, G02B 524

Patent

active

048621013

ABSTRACT:
A system for producing spectrally pure optical pumping light at a resonant frequency is disclosed for molecular species and atomic isotopes. A Faraday filter is used as a transmission filter, and the frequency overlap between the output of a light source containing the atomic or molecular material and the spectrum of the Faraday filter allows optically pure pumping light to emanate from the filter. Cross-polarizers are used to further reduce background noise.

REFERENCES:
patent: 3986769 (1976-10-01), Senitzky
patent: 4292526 (1981-09-01), Marling
Yabuzaki et al, "Frequency-locking of . . . Faraday Filter", 8/77, Opt. Comm., vol. 22, #2, pp. 181-184.
Yabuzaki et al, "Polarization Properties . . . Faraday Filter", 5/77; Jpn. J. Appl. Phys., vol. 16, #5, pp. 849-850, abst. only.

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