23 February 2009 High-spectral brightness pump sources for diode-pumped solid state lasers
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Abstract
The development of on-chip grating stabilized semiconductor lasers for diode pumped solid state lasers is discussed. The diode lasers, specifically at wavelengths of 808nm, 976nm, and 1532nm are stabilized via internal gratings to yield a typical center wavelength tolerance of ± 1nm, FWHM of < 1-2nm, and a temperature tuning coefficient of < 0.09 nm/°C. We also report on the CW and QCW operation of conduction cooled bars, stacks, and fiber coupled modules. Simulations show that on-chip stabilized pump sources yield performance improvements over standard pumping schemes. A comparison in laser performance is shown for typical DPSS configuration.
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Wentao Hu, Falgun D. Patel, Mark L. Osowski, Robert M. Lammert, Se W. Oh, Chameli Panja, Victor C. Elarde, Laurent Vaissié, Jeffrey E. Ungar, "High-spectral brightness pump sources for diode-pumped solid state lasers", Proc. SPIE 7198, High-Power Diode Laser Technology and Applications VII, 71981R (23 February 2009); doi: 10.1117/12.805096; https://doi.org/10.1117/12.805096
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