Apparatus and method using amplification cells for ring laser gy

Details Apparatus and method using amplification cells for ring laser gy Apparatus and method using amplification cells for ring laser gy

1987-02-20

1989-04-25

McGraw, Vincent P.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

372 94, 372 32, G01C 1964

Patent

active

048252603

ABSTRACT:
An apparatus and method for path length control for a laser gyro using two external gain cells and the shifted gain spectra of two neon isotopes. The laser cavity is stabilized by detecting the difference in the amplification rate between the two gain cells that are traversed by two rays. Absorption cells may be used to replace the gain cells.

REFERENCES:
patent: 3503005 (1970-03-01), Mocker
patent: 3921099 (1975-11-01), Abrams et al.
patent: 4320974 (1982-03-01), Ljung
patent: 4473297 (1984-09-01), Simpson et al.
patent: 4597667 (1986-07-01), Curby et al.
patent: 4637255 (1987-01-01), Martin

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