Effects of excited-state absorption and amplified spontaneous emission in a high-average-power dye laser amplifier pumped by copper vapor     lasers

Yoichiro Maruyama; Masaaki Kato; Takashi Arisawa

doi:10.1117/1.600724

1 April 1996 Effects of excited-state absorption and amplified spontaneous emission in a high-average-power dye laser amplifier pumped by copper vapor lasers

Yoichiro Maruyama, Masaaki Kato, Takashi Arisawa

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Optical Engineering, Vol. 35, Issue 4, (April 1996). https://doi.org/10.1117/1.600724

The amplification characteristics of a dye laser amplifier with a gain length of 20 mm pumped by a high-average-power copper vapor laser system are studied. The characteristics of the dye laser amplifier are analyzed by rate equations in which excited-state absorption (ESA) and amplified spontaneous emission (ASE) are taken into consideration. In the experiment, the energy extraction efficiency of about 48% is obtained for the amplifier. The calculation shows that the main factors of the energy loss in the amplifier are ASE and ESA and the former is dominant at the low-input-power region and the latter at the high-input-power region. The output power decreases around 10% by the ESA near the peak wavelength of rhodamine 6G dye.

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Yoichiro Maruyama, Masaaki Kato, and Takashi Arisawa "Effects of excited-state absorption and amplified spontaneous emission in a high-average-power dye laser amplifier pumped by copper vapor lasers," Optical Engineering 35(4), (1 April 1996). https://doi.org/10.1117/1.600724

Published: 1 April 1996

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