Coherent light generators – Particular beam control device – Nonlinear device
Patent
1995-03-31
1997-03-04
Bovernick, Rodney B.
Coherent light generators
Particular beam control device
Nonlinear device
372 22, 372 97, H01S 310
Patent
active
056087446
ABSTRACT:
A laser system includes an apparatus and method having a primary laser resonator having a laser medium therein for producing a laser beam of a first wavelength and a second laser resonator optically connected to the primary resonator to allow a portion of the laser energy from the primary laser resonator to pass into the secondary laser resonator. An optical parametric oscillator is located intracavity of the secondary laser resonator and includes a non-linear crystal for producing a laser beam of a second wavelength therefrom. A coherent beam output is coupled to the optical parametric oscillator for producing an output beam of predetermined wavelength of the second wavelength while blocking the output of the laser beam of the first wavelength so that a dual resonator combines a secondary laser cavity and an optical parametric oscillator to produce a predetermined output wavelength. The compact multiple resonator laser system has a substrate mirror system having four mirror surfaces thereon positioned to form two laser resonators. A multi-pass corner cube is mounted to fold the light beams between a pair of substrate mirrored surfaces while a transfer corner cube is positioned to transfer a laser beam from one resonator to the second resonator to form a very compact pair of laser resonators. One of the laser resonators is a dual resonator forming both the laser resonator and an optical parametric oscillator resonator. A method of producing a coherent light beam of a predetermined output wavelength uses the compact laser system apparatus.
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Davis Stephen E.
Hovis Floyd E.
Sanders Walter R.
Selleck Ronald R.
Shepherd Bart A.
Bovernick Rodney B.
Hobby III William M.
Litton Systems Inc.
Wise Robert E.
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