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Conferences > ASSP > 2005 > MIR > 252

Mode locked and Q-switched Cr:ZnSe laser using a Semiconductor Saturable Absorbing Mirror (SESAM)

Clifford R. Pollock, Nathan A. Brilliant, Douglas Gwin, Timothy J. Carrig, William J. Alford, J. B. Heroux, W. I. Wang, I. Vurgaftman, and J. R. Meyer

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Abstract

A passively mode-locked cw Cr:ZnSe laser operating near 2.5 μm generated 400 mW of output power with 11 psec pulse duration and 100 MHz repetition rate using a Semiconductor Saturable Absorbing Mirror (SESAM). Adjusting the cavity to be significantly shorter and have a weaker focus on the SESAM, passive Q-switched operation could also be obtained with the same SESAM. Q-switched operation produced 50 nsec pulses with a 1 MHZ repetition rate, and peak powers of 10 W. In both mode-locked and Q-switched operation, the laser was pumped with 2.4W from a Tm:YALO laser.

© 2005 Optical Society of America

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