Image-rotating cavity designs for improved beam quality in nanosecond optical parametric oscillators
Journal Article
·
· Journal of the Optical Society of America B
We show by computer simulation that high beam quality can be achieved in high-energy, nanosecond optical parametric oscillators by use of image-rotating resonators. Lateral walk-off between the signal and the idler beams in a nonlinear crystal creates correlations across the beams in the walk off direction, or equivalently, creates a restricted acceptance angle. These correlations can improve the beam quality in the walk-off plane. We show that image rotation or reflection can be used to improve beam quality in both planes. The lateral walk-off can be due to birefringent walk-off in type II mixing or to noncollinear mixing in type I or type II mixing.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40205340
- Journal Information:
- Journal of the Optical Society of America B, Journal Name: Journal of the Optical Society of America B Journal Issue: 5 Vol. 18; ISSN 0740-3224
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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