Abstract

We report the efficient frequency doubling of a self-starting, coupled-cavity, mode-locked Ti:sapphire laser (Ti:Al₂O₃). The laser produced pulses of 2.5–3.4 ps at a 122-MHz repetition rate that were tunable from 740 to 820 nm. These pulses were frequency doubled in an external ring enhancement cavity. Using a 1-mm-long, Brewster-cut LiIO₃ crystal, we obtained conversion efficiencies of as much as 34% in the form of picosecond pulses tunable from 370 to 410 nm. The maximum generated power in the blue was 48 mW at 384 nm.

© 1991 Optical Society of America

External frequency conversion of cw mode-locked Ti:Al₂O₃ laser radiation

A. Nebel and R. Beigang
Opt. Lett. 16(22) 1729-1731 (1991)

Mode locking of Ti:Al₂O₃ lasers and self-focusing: a Gaussian approximation

François Salin, Jeff Squier, and Michel Piché
Opt. Lett. 16(21) 1674-1676 (1991)

Starting dynamics of additive-pulse mode locking in the Ti:Al₂O₃ laser

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Opt. Lett. 15(22) 1300-1302 (1990)

Intracavity frequency doubling of a 2.5-kHz pulsed Ti:Al₂O₃ laser

P. Poirier and F. Hanson
Opt. Lett. 18(22) 1925-1927 (1993)

Self-starting mode locking and Kerr-lens mode locking of a Ti:Al₂O₃ laser by use of semiconductor-doped glass structures

I. P. Bilinsky, R. P. Prasankumar, and J. G. Fujimoto
J. Opt. Soc. Am. B 16(4) 546-549 (1999)