Abstract
We present a theory of ultrashort-pulse difference-frequency generation (DFG) with quasi-phase-matching (QPM) gratings in the undepleted-pump, unamplified-signal approximation. In the special case of a cw (or quasi-cw) pump, the spectrum of the generated idler is related to the spectrum of the signal through a transfer-function relation that is valid for arbitrary dispersion in the medium. The engineerability of this QPM-DFG transfer function establishes the basis for arbitrary pulse shaping. Experimentally we demonstrate QPM-DFG devices operating in a frequency-degenerate type II configuration and producing pulse-shaped output at 1550 nm from 220-fs pulses at 1550 nm.
© 2001 Optical Society of America
Full Article | PDF ArticleMore Like This
G. Imeshev, M. A. Arbore, M. M. Fejer, A. Galvanauskas, M. Fermann, and D. Harter
J. Opt. Soc. Am. B 17(2) 304-318 (2000)
G. Imeshev, M. A. Arbore, S. Kasriel, and M. M. Fejer
J. Opt. Soc. Am. B 17(8) 1420-1437 (2000)
G. Imeshev, M. M. Fejer, A. Galvanauskas, and D. Harter
Opt. Lett. 26(5) 268-270 (2001)