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3. Continuous operation
The efficiency of the non-linear process is directly related to the intensity of the waves involved. The latter is highly dependent on the duration of the laser pulses. This is why it is common practice to distinguish nonlinear optics applications according to their operating time regime: continuous, nanosecond, picosecond and femtosecond. This distinction is all the more relevant as, unlike laser systems, the pump energy is not stored in the amplifying medium due to the instantaneous nature of the nonlinear interaction. Non-linear gain is therefore highly dependent on how the pump energy is distributed temporally. In this paragraph, we first consider the case of the continuous regime.
3.1 Optical parametric generators
The continuous regime is characterized...
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Continuous operation
Microsecond to nanosecond 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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