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3 June 1994 New Cr4+ laser materials for the near infrared
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Cr4+ doped in forsterite and YAG form broadly tunable lasers in the 1.2-1.6 micrometers region. These lasers can operation cw with output powers up to 2W, they re both pumped with the 1.06 micrometers output of a Nd:YAG laser, and they can both be modelocked to produce femtosecond pulses. We report on the latest results from these lasers, including self-modelocked operation of the Cr:YAG laser at 1.52 micrometers , with 120 femtosecond pulses, and with 480 mW output power. Both lasers are significantly affected by temperature: output power decreases with increasing temperature. Attempts to find a new host lattice for Cr4+ which does not have the deleterious temperature sensitivity of forsterite of YAG have not led to any breakthroughs.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alphan Sennaroglu, Clifford R. Pollock, Howard Nathel, Jennifer Mass, James Burlitch, Steve Margraf, and Rudiger Dieckmann "New Cr4+ laser materials for the near infrared", Proc. SPIE 2216, Photonics at the Air Force Photonics Center, (3 June 1994);

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