High-efficiency, room-temperature nanosecond Yb:YAG laser Export

@article{citeulike:6101059, abstract = {Yb3+-doped gain media offer favorable properties for diode-pumped laser amplifiers for high-energy ns-pulses. To reach high optical-to-optical conversion efficiencies at room temperature however, very high and often impractical fluences are required both for pumping and extraction. Low temperature operation offers a solution, but the required cryogenic cooling systems add considerable complexity, bulkiness and cost. Multi-passing both pump and extraction beams through the gain medium is an alternative approach to overcome efficiency limitations at room temperature. In this article we present numerical and experimental results to this effect.We demonstrated ns-pulse output from a diode-pumped Yb:YAG amplifier at an energy of 566 mJ and an optical-to-optical efficiency of 20\%, which is almost a doubling of the efficiency achieved with ns-lasers employing Yb3+-doped gain media at this energy level.}, author = {Siebold, M. and Loeser, M. and Schramm, U. and Koerner, J. and Wolf, M. and Hellwing, M. and Hein, J. and Ertel, K.}, citeulike-article-id = {6101059}, citeulike-linkout-0 = {http://dx.doi.org/10.1364/OE.17.019887}, citeulike-linkout-1 = {http://www.opticsinfobase.org/abstract.cfm?id=187201}, day = {26}, doi = {10.1364/OE.17.019887}, journal = {Opt. Express}, keywords = {amplifier, diode, efficiency, high, high-energy, laser, nanosecond, pumping, temperature, yag, yb}, month = {October}, number = {22}, pages = {19887--19893}, posted-at = {2009-11-12 09:59:10}, priority = {3}, publisher = {OSA}, title = {High-efficiency, room-temperature nanosecond Yb:YAG laser}, url = {http://dx.doi.org/10.1364/OE.17.019887}, volume = {17}, year = {2009} }

TY - JOUR ID - citeulike:6101059 L3 - citeulike-article-id:6101059 N2 - Yb3+-doped gain media offer favorable properties for diode-pumped laser amplifiers for high-energy ns-pulses. To reach high optical-to-optical conversion efficiencies at room temperature however, very high and often impractical fluences are required both for pumping and extraction. Low temperature operation offers a solution, but the required cryogenic cooling systems add considerable complexity, bulkiness and cost. Multi-passing both pump and extraction beams through the gain medium is an alternative approach to overcome efficiency limitations at room temperature. In this article we present numerical and experimental results to this effect.We demonstrated ns-pulse output from a diode-pumped Yb:YAG amplifier at an energy of 566 mJ and an optical-to-optical efficiency of 20%, which is almost a doubling of the efficiency achieved with ns-lasers employing Yb3+-doped gain media at this energy level. IS - 22 JF - Opt. Express EP - 19893 TI - High-efficiency, room-temperature nanosecond Yb:YAG laser PB - OSA VL - 17 SP - 19887 KW - amplifier KW - diode KW - efficiency KW - high KW - high-energy KW - laser KW - nanosecond KW - pumping KW - temperature KW - yag KW - yb AU - Siebold, M AU - Loeser, M AU - Schramm, U AU - Koerner, J AU - Wolf, M AU - Hellwing, M AU - Hein, J AU - Ertel, K PY - 2009/10/26/ UR - http://dx.doi.org/10.1364/OE.17.019887 ER -