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Achromatic phase matching for second harmonic generation of femtosecond pulses

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1 Author(s)
O. E. Martinez ; Comision Nacional de Energia Atomica, Buenos Aires, Argentina

A scheme is proposed by which the phase matching bandwidth can be increased by adjusting higher-order terms in frequency shift in the phase-matching condition. This is achieved by introducing a spectral angular dispersion so that the different spectral components propagate at their phase-matching angles. This is equivalent to canceling the group velocity mismatch. The equations describing the requirements on the angular dispersion are discussed and applied to the particular case of type I phase matching. A possible experimental setup is shown that would meet all the conditions required

Published in:

IEEE Journal of Quantum Electronics  (Volume:25 ,  Issue: 12 )