4. Microsecond to nanosecond operation
4.1 Optical parametric generators
In the microsecond regime, as in the continuous regime, the conversion efficiency of an OPG is generally limited by the low peak power of the pump laser available.
In the nanosecond regime, peak pump powers are sufficient to generate potentially intense radiation (possible conversion efficiencies of several tens of percent).
In this case, to avoid optical parametric oscillation between the crystal faces, a very good anti-reflective coating must be applied to the faces, and/or a bevel cut of one of the faces may be considered.
With such high conversion efficiencies, the gain is saturated for certain spatial components of the emitted radiation, which can result in beams of degraded...
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Microsecond to nanosecond operation
Picosecond to femtosecond operation
Bibliography
Software tools
SNLO: software developed by Sandia National Laboratories (USA) to calculate various interactions in nonlinear quadratic optics (phase matching, parametric amplification and oscillation, etc.). This software is distributed by AS-Photonics (USA), and can be downloaded free of charge for research institutes via the website http://www.as-photonics.com/snlo...
Directory
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Companies selling optical parametric sources
The following list is by no means exhaustive, but gives a few pointers to suppliers of optical parametric sources and optical nonlinear materials.
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Optical parametric sources
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Events
Photonics West: every year on the West Coast of the United States http://spie.org/photonics-west.xml
CLEO: every year in the United States http://www.cleoconference.org/home/
CLEO Europe: every two years in Munich (Germany)...
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