THERMAL EFFECTS IN LASER-DIODE-PUMPED SELF-FREQUENCY-DOUBLED NDXY1-XAL3(BO3)(4)(NYAB) MICROCHIP LASER

被引：40

作者：

OMATSU, T

KATO, Y

SHIMOSEGAWA, M

HASEGAWA, A

OGURA, I

机构：

[1] Department of Image Science, Chiba University, Inage-ku, Chiba, 263, Yayoi-cho

来源：

OPTICS COMMUNICATIONS | 1995年 / 118卷 / 3-4期

关键词：

D O I：

10.1016/0030-4018(95)00208-P

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present what is, to our knowledge, the first report of thermal effects in the laser diode (LD) pumped NYAB laser. By blocking the pump energy periodically, we investigated temporal behavior of second harmonic (SH) intensity. During the laser oscillation, the SH power decreased and its beam pattern changed from a Gaussian shape to a bell one. Under lasing conditions, the optical distortion in the NYAB crystal was analyzed using a Michelson's interferometer. At the center of the pumped region, the phase shift of the laser rod had attained 2.05 rad compared with the edge of the rod. It was proved that these temporal behaviors of the second harmonics were caused by the temperature rise of the NYAB laser rod due to the local heating of the laser crystal.

引用

页码：302 / 308

页数：7

共 11 条

[1]

Amano S., 1992, Review of Laser Engineering, V20, P723, DOI 10.2184/lsj.20.9_723

[2] TEMPERATURE AND THERMAL-STRESS SCALING IN FINITE-LENGTH END-PUMPED LASER RODS [J].