Generation of narrow-bandwidth tunable picosecond pulses by difference- frequency mixing of stretched pulses
نویسنده
چکیده
We propose what is, to our knowledge, a novel method of generating tunable narrow-bandwidth picosecond pulses in which the chirp of equally stretched pump and signal is canceled by difference-frequency mixing. The effect of the group-velocity mismatch on the output pulse bandwidth is analyzed. The method is proved experimentally by generation of pulses of 3.3-cm21 bandwidth and 10-ps duration in a type I b barium borate crystal, starting from 1-ps pulses. © 1999 Optical Society of America [S0740-3224(99)00409-9] OCIS codes: 190.4970, 320.1590, 320.5540, 320.7110.
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تاریخ انتشار 1999