Over 3 W high-efficiency vertical-external-cavity surface-emitting lasers and application as efficient fiber laser pump sources

Fan, L.; Fallahi, M.; Hader, J.; Zakharian, A. R.; Kolesik, M.; Moloney, J. V.; Qiu, T.; Schülzgen, A.; Peyghambarian, N.; Stolz, W.; Koch, S. W.; Murray, J. T.
May 2005
Applied Physics Letters;5/23/2005, Vol. 86 Issue 21, p211116
Academic Journal
We report on the design and fabrication of high-power, high-brightness diode-pumped vertical-external-cavity surface-emitting lasers. Over 3 W continuous wave fundamental transverse mode (TEM00) output at 980 nm with a high slope efficiency of 44% is demonstrated at room temperature. The diffraction-limited beam with M2 factor of 1.15 at high-power operation is achieved. A vertical-external-cavity surface-emitting laser operating near 976 nm with a diffraction-limited beam is used to pump the core of 3 cm long Er/Yb-codoped single-mode phosphate fiber lasers. An output power in excess of 250 mW at 1535 nm with a slope efficiency of 29% is obtained without any cooling.


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