期刊
OPTICS EXPRESS
卷 22, 期 13, 页码 16386-16392出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.22.016386
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- European Space Agency (ESA) [4000107239/12/NL/PA]
We show for the first time that multi-ten Watt operation of an Alexandrite laser can be achieved with direct red diode-pumping and with high efficiency. An investigation of diode end-pumped Alexandrite rod lasers demonstrates continuous-wave output power in excess of 26W, more than an order of magnitude higher than previous diode end-pumping systems, and slope efficiency 49%, the highest reported for a diode-pumped Alexandrite laser. Wavelength tuning from 730 to 792nm is demonstrated using self-seeding feedback from an external grating. Q-switched laser operation based on polarization-switching to a lower gain axis of Alexandrite has produced similar to mJ-pulse energy at 1kHz pulse rate in fundamental TEM00 mode. (C)2014 Optical Society of America
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