Coherent light generators – Particular resonant cavity – Folded cavity
Patent
1988-08-18
1992-09-15
Scott, Jr., Leon
Coherent light generators
Particular resonant cavity
Folded cavity
372 34, 372 20, 372 12, 372 37, 372 66, 372 75, H01S 3083
Patent
active
051484447
ABSTRACT:
A tunable, single-frequency, solid-state ring laser includes a solid-state laser material pumped by laser-diode light and at least one additional external piece which reflects the intra-cavity lasing light in a closed loop such that the plane of polarization is changed in an appropriate amount to compensate for magneto-optic change (Faraday rotation) of the plane of polarization, which occurs either inside the solid-state material or in one of the external pieces which traversed by the intra-cavity lasing beam. At least one of the external elements has the ability to change the optical path length of the intra-cavity lasing beam in order to tune the laser frequency by means of mechanical movement, electro-optic properties, magneto-optic properties, or some combination of the above properties.
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"Final Report for Coherent Summation of Nd:YAG Lasers," Schwartz Electro-Optics, Inc., Contract DAAH-1-86-C-1070, from Oct. 1, 1986 to Mar. 31, 1987.
"Frequency Stabilized Nd:YAG laser with high output power," K. G. Peng et al. Applied Optics, vol. 24, No. 7, Apr. 1, 1985.
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Caserza Steven F.
Harmonic Lightwaves, Inc.
Jr. Leon Scott
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