期刊
OPTICS COMMUNICATIONS
卷 268, 期 1, 页码 115-120出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2006.06.064
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We describe a compact, broadly tunable, continuous-wave (cw) Cr2+:ZnSe laser pumped by a thulium fiber laser at 1800 nm. In the experiments, a polycrystalline ZnSe sample with a chromium concentration of 9.5 x 10(18) cm(-3) was used. Free-running laser output was around 2500 urn. Output couplers with transmissions of 3%, 6%, and 15% were used to characterize the power performance of the laser. Best power performance was obtained with a 15% transmitting output coupler. In this case, as high as 640 mW of output power was obtained with 2.5 W of pump power at a wavelength of 2480 nm. The stimulated emission cross-section values determined from laser threshold data and emission measurements were in good agreement. Finally, broad, continuous tuning of the laser was demonstrated between 2240 and 2900 nm by using an intracavity Brewster cut MgF2 prism and a single set of optics. (c) 2006 Elsevier B.V. All rights reserved.
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