Optical Parametric Oscillators
Norman P. Barnes, NASA Langley Research Center Hampton, Virginia
1. INTRODUCTION
Optical parametric oscillators are a convenient method to create a widely tunable source of laser radiation. An optical parametric oscillator begins with a pump laser. In many cases the pump laser is a well-behaved solid-state laser such as a Nd:YAG laser or a frequency-doubled Nd:YAG laser. To complete the system, a nonlinear crystal between a set of mirrors is required. As such, the optical parametric oscillator by itself is an extremely simple device. Using an optical parametric oscillator, any wavelength longer than the pump wavelength and nominally within the transparency region of the nonlinear crystal can be created. ...
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