High beam quality optical parametric oscillator

Details High beam quality optical parametric oscillator High beam quality optical parametric oscillator

1998-05-22

2000-08-08

Lee, John D.

Optical: systems and elements

Optical frequency converter

Parametric oscillator

372 95, G02F 139

Patent

active

061010227

ABSTRACT:
An optical parametric oscillator comprising two meniscus mirrors disposed on opposite sides of a nonlinear medium that forms a confocal unstable resonator. A reduced-to-practice embodiment uses concave-convex mirrors in a confocal arrangement disposed on opposite sides of a KTP crystal used as the nonlinear medium. The optical parametric oscillator and confocal unstable resonator of the present invention exhibits improved beam divergence angles.

REFERENCES:
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patent: 5390211 (1995-02-01), Clark et al.
patent: 5408481 (1995-04-01), Scheps
patent: 5457707 (1995-10-01), Sobey et al.
Bosenbern, W.R., Cheng, L.K., Bierlein, J.D., "Optical Parametric Frequency Conversion Properties of KTiOAsO4", Appl. Phys. Lett., vol. 65, No. 22, 28 (Nov. 1994), pp. 2765-7.
Zhou, H., Zhang, J., Chen, C., Shen, Y.R., "Picosecond, Narrow-Band, Widely Tunable Optical Parametric Oscillator Using a Temperature-Tuned Lithium Borate Crystal", Appl. Phys. Lett., vol. 62, No. 13, 29 (Mar. 1993), pp. 1457-9.

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