Abstract
Efficiency of second-harmonic generation (SHG) of broadband light pulses is limited by chromatic dispersion of a nonlinear crystal. The group velocity mismatch between first and second harmonic pulses results in diminishing overlap between pulses as they propagate in a nonlinear crystal. Particularly, when fundamental pulses are chirped (phase-modulated), the group velocity mismatch causes loss of phase-matching even before complete walk-off of pulse envelopes occurs [1]. This limits the optimal crystal length and, as a result, overall conversion efficiency. In order to maintain the high conversion efficiency in a shorter crystal, pulse irradiance has to be increased. However, the pulse irradiance is limited by the crystal damage threshold. Thus, achieving the high conversion efficiency of broadband pulses is not a trivial task, especially when the pulses are not bandwidth-limited.
© 2013 IEEE
PDF ArticleMore Like This
O. Gobert, G. Mennerat, R. Maksimenka, N. Fedorov, M. Perdrix, D. Guillaumet, C. Ramond, J. Habib, C. Prigent, D. Vernhet, T. Oksenhendler, and M. Comte
CFIE_P_7 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 2013
O. Gobert, G. Mennerat, R. Maksimenka, N. Fedorov, M. Perdrix, D. Guillaumet, C. Ramond, J. Habib, C. Prigent, D. Vernhet, T. Oksenhendler, and M. Comte
CFIE_P_7 International Quantum Electronics Conference (IQEC) 2013
A. I. Baranov, O. A. Ryabushkin, and A. V. Konyashkin
CE_P_23 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 2015