Third-harmonic generator with uncoated brewster-cut dispersive o

Details Third-harmonic generator with uncoated brewster-cut dispersive o Third-harmonic generator with uncoated brewster-cut dispersive o

1997-11-25

1998-12-15

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Nonlinear device

372 21, 372 66, 372 92, 372 27, 372108, H01S 310

Patent

active

058504079

ABSTRACT:
A third-harmonic crystal has a Brewster-cut dispersive output surface for separating the p-polarized fundamental and third-harmonic beams without introducing losses into the beams. The output surface of the third-harmonic crystal is optically uncoated, and thus insensitive to potential ultraviolet (UV)-induced damage. Frequency doubling and tripling lithium triborate (LBO) crystals are used with a Brewster-cut Nd-YAG active medium in a resonant cavity to generate UV light at 355 nm from infrared (IR) light at 1064 nm. Except for the tripling crystal output surface, the doubling and tripling crystal optical surfaces are normal-cut and anti-reflection (AR) coated.

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Alfrey, A., Intracavity Tripling of Diode-Pumped Nd:YVO4 at High Q-Switch Repetition Rates, CLEO '96 Technical Digest, Postdeadline Paper Proceedings CPD19, Optical Society of America, Washington DC, 1996.
Colter;"Conversion from 3371 to 1124 A by nonresonant optical frequency tripling in compressed krypton gas";Optic s Letters,vol 4 No. 5,May 1979.
Jones et al:"Milliwatt-Level 213nm Source Based on a Repetitively Q-Switched CW-Pum,ped Nd:YAG Laser";IEEE Jour. of Quantum EWlectronics,vol QE-15,No 4,Apr. 1979.
Pixton; "Tripling YAG Frequency";Laser Focus,Jul. 1978,pp.66-70.

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