Coherent light generators – Particular resonant cavity – Folded cavity
Patent
1987-12-14
1989-09-05
Sikes, William L.
Coherent light generators
Particular resonant cavity
Folded cavity
372 83, 372 85, 372 88, 356350, H01S 3083
Patent
active
048645869
ABSTRACT:
The present invention provides a ring laser gyro which utilizes a gas impervious block containing at least three tunnels which meet to form a closed-loop, gas containing, cavity, and allow passage of laser beams therethrough. A pair of electrodes are positioned in alignment with one of the tunnels, and positioned relative to each other to support a current through the gas and establish a glow discharge region within a portion of one of the tunnels to induce a pair of counter-propogating laser beams to propogate through the established glow discharge region in a direction transverse to the direction of the discharge current.
REFERENCES:
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patent: 4420835 (1983-12-01), Hattori et al.
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"Hollow-Cathode Glow Discharge in Hydrogen and the Nobel Gases", Journal of Applied Physics, vol. 37, No. 6, 2405-2412, May 1986, D.J. Sturges and H.J. Oskam.
"Hollow-Cathode Transverse Discharge He-Ne ad He-Cd+ Lasers", Applied Physics 2, 143-150, 1973, by S.C. Wang and A.E. Siegman.
"A Qualitative Theory of the Medium Pressure Hollow Cathode Effect", Physica 37, 457-466, by D.J. Sturges and H.J. Oskam.
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Honeywell Inc.
Pajak Robert A.
Sikes William L.
Thi Vo Xuan
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