Abstract

Efficient broadband four-wave optical parametric amplification in bulk Kerr medium (fused silica) is demonstrated by means of noncollinear phase matching and cylindrical focusing geometry without the onset of beam breakup and filamentation. Amplified signal energy as high as 180μJ with 1ps, 1.8mJ pumping at 1055nm is achieved with pump-to-signal energy conversion close to 10%. More than 70nm FWHM parametric gain bandwidth around 740nm is demonstrated without imposing angular dispersion on the frequency components of the broadband seed signal.

© 2008 Optical Society of America

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