13 May 2016 Wide-bandwidth ceramic Tm:Lu2O3 amplifier
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Abstract
We report on the investigation of a novel ceramic Tm:Lu2O3 amplifier lasing at around 2-μm and offering efficient generation of high-energy pulses with high-peak power at high repletion rate, high efficiency, and with near-diffraction-limited beam quality (BQ). The amplifier has a bandwidth of over 300 nm, which offers broad tunability. The bandwidth also supports generation of ultrashort pulses in the femtosecond regime. The “2-for-1” pump architecture of the Tm ion enables high optical-to-optical efficiency while pumping at around 800 nm. High thermal conductivity of the Lu2O3 host supports operation at high-average power. The ceramic nature of the Lu2O3 host overcomes the scalability limits of single crystal sesquioxides.
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John Vetrovec, Drew A. Copeland, Amardeep S. Litt, Eldridge Briscoe, "Wide-bandwidth ceramic Tm:Lu2O3 amplifier", Proc. SPIE 9834, Laser Technology for Defense and Security XII, 983407 (13 May 2016); doi: 10.1117/12.2224411; https://doi.org/10.1117/12.2224411
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