We demonstrate self-starting passive mode locking of a Cr 4+:YAG laser, using an intracavity nonlinear mirror as a saturable absorber. The pump source is a diode-pumped Nd:YVO4 laser. Output pulses are centered at 1541 nm, with 26-nm spectral bandwidth and 110-fs pulse width. Output powers of 70 mW are obtained with 8 W of pump power. This mode locking technique is compared with Kerr-lens mode locking.
© 1996 Optical Society of America
B. C. Collings, J. B. Stark, S. Tsuda, W. H. Knox, J. E. Cunningham, W. Y. Jan, R. Pathak, and K. Bergman, "Saturable Bragg reflector self-starting passive mode locking of a Cr4+:YAG laser pumped with a diode-pumped Nd:YVO4 laser," Opt. Lett. 21, 1171-1173 (1996)