Abstract
A new type of optical parametric chirped pulse amplifier is designed and
analyzed for the amplification of pulse centered at 808 nm. A novel crystal, yttrium
calcium oxyborate YCa4O(BO3)3 (YCOB), is utilized in the power amplification stage
of optical parametric amplification (OPA). Noncollinear phase matching parameters in
the xoz principle plane of YCOB, compared with those in BBO and DKDP, are analyzed
by numerical simulation. The results show that YCOB rather than DKDP can be used in
the power amplification stage of OPA to realize the amplification of chirped pulse
to several joules with a gain bandwidth exceeding 100 nm. This can be used to gain a
high intensity pulse of ~10 fs after the compressor.
© 2011 Chinese Optics Letters
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