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
Y1 - 1999/11
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.
UR - http://www.scopus.com/inward/record.url?scp=0033320592&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0033320592
SN - 0021-4922
VL - 38
SP - 6335
EP - 6339
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
IS - 11
ER -