Quantitative measurement of thermal lens in diode-laser pumped self-frequency-doubled Nd,Lu:YAl3(BO3)4 laser under lasing and non-lasing conditions

Masayuki Shimosegawa; Takashige Omatsu; Akira Hasegawa; Mitsuhiro Tateda; Iwao Ogura; Pu Wang; Judith M. Dawes

Quantitative measurement of thermal lens in diode-laser pumped self-frequency-doubled Nd,Lu:YAl₃(BO₃)₄ laser under lasing and non-lasing conditions

Masayuki Shimosegawa, Takashige Omatsu, Akira Hasegawa, Mitsuhiro Tateda, Iwao Ogura, Pu Wang, Judith M. Dawes

Department of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

We present a quantitative comparison between thermal lenses under lasing and non-lasing conditions in a diode-laser pumped self-frequency-doubled Nd,Lu:YAl₃(BO₃)₄ laser using an interferometric technique. At the pump power of 1.5 W, the thermal lens under the non-lasing condition attained 8 m^-1 and this corresponded to 170% of that under the lasing condition. Validity of the measured thermal lenses was confirmed by investigating the dependence of output power on the cavity length. The difference between thermal lenses under lasing and non-lasing conditions is caused by the nonradiative loss process of the upper level due to the cross-relaxation.

Original language	English
Pages (from-to)	6335-6339
Number of pages	5
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	38
Issue number	11
Publication status	Published - Nov 1999

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Shimosegawa, Masayuki ; Omatsu, Takashige ; Hasegawa, Akira ; Tateda, Mitsuhiro ; Ogura, Iwao ; Wang, Pu ; Dawes, Judith M. / Quantitative measurement of thermal lens in diode-laser pumped self-frequency-doubled Nd,Lu:YAl₃(BO₃)₄ laser under lasing and non-lasing conditions. In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 1999 ; Vol. 38, No. 11. pp. 6335-6339.

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title = "Quantitative measurement of thermal lens in diode-laser pumped self-frequency-doubled Nd,Lu:YAl3(BO3)4 laser under lasing and non-lasing conditions",

abstract = "We present a quantitative comparison between thermal lenses under lasing and non-lasing conditions in a diode-laser pumped self-frequency-doubled Nd,Lu:YAl3(BO3)4 laser using an interferometric technique. At the pump power of 1.5 W, the thermal lens under the non-lasing condition attained 8 m-1 and this corresponded to 170% of that under the lasing condition. Validity of the measured thermal lenses was confirmed by investigating the dependence of output power on the cavity length. The difference between thermal lenses under lasing and non-lasing conditions is caused by the nonradiative loss process of the upper level due to the cross-relaxation.",

author = "Masayuki Shimosegawa and Takashige Omatsu and Akira Hasegawa and Mitsuhiro Tateda and Iwao Ogura and Pu Wang and Dawes, {Judith M.}",

year = "1999",

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journal = "Japanese Journal of Applied Physics",

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Quantitative measurement of thermal lens in diode-laser pumped self-frequency-doubled Nd,Lu:YAl₃(BO₃)₄ laser under lasing and non-lasing conditions. / Shimosegawa, Masayuki; Omatsu, Takashige; Hasegawa, Akira; Tateda, Mitsuhiro; Ogura, Iwao; Wang, Pu; Dawes, Judith M.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 38, No. 11, 11.1999, p. 6335-6339.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Quantitative measurement of thermal lens in diode-laser pumped self-frequency-doubled Nd,Lu:YAl3(BO3)4 laser under lasing and non-lasing conditions

AU - Shimosegawa, Masayuki

AU - Omatsu, Takashige

AU - Hasegawa, Akira

AU - Tateda, Mitsuhiro

AU - Ogura, Iwao

AU - Wang, Pu

AU - Dawes, Judith M.

PY - 1999/11

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N2 - We present a quantitative comparison between thermal lenses under lasing and non-lasing conditions in a diode-laser pumped self-frequency-doubled Nd,Lu:YAl3(BO3)4 laser using an interferometric technique. At the pump power of 1.5 W, the thermal lens under the non-lasing condition attained 8 m-1 and this corresponded to 170% of that under the lasing condition. Validity of the measured thermal lenses was confirmed by investigating the dependence of output power on the cavity length. The difference between thermal lenses under lasing and non-lasing conditions is caused by the nonradiative loss process of the upper level due to the cross-relaxation.

AB - We present a quantitative comparison between thermal lenses under lasing and non-lasing conditions in a diode-laser pumped self-frequency-doubled Nd,Lu:YAl3(BO3)4 laser using an interferometric technique. At the pump power of 1.5 W, the thermal lens under the non-lasing condition attained 8 m-1 and this corresponded to 170% of that under the lasing condition. Validity of the measured thermal lenses was confirmed by investigating the dependence of output power on the cavity length. The difference between thermal lenses under lasing and non-lasing conditions is caused by the nonradiative loss process of the upper level due to the cross-relaxation.

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