Abstract
Optical Parametric Chirped Pulse Amplification (OPCPA) has proven to be a promising technique to amplify short laser pulses. Its main advantages are high efficiency, high repetition rate, and broad bandwidth. The last one is largely dependent on the choice of the non-linear crystal, being BBO and LBO some of the most often used ones. Because of the phase matching restrictions, conventionally only about one tenth their great bandwidth can be used at once. The user is able to choose the central working wavelength but is restricted to a window that will likely impair any sub 10 fs pulse. This happens because in this parametric process some of the parameters, namely the phase matching and non- collinear angles, are traditionally set as constant, and thus can only work for a limited range of wavelengths.
© 2007 IEEE
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