Effects of pump heating on laser and spectroscopic properties of the Nd:[YAl3(BO3)4] self-frequency-doubling laser

被引：36

作者：

Jaque, D ^{[1
]}

Capmany, J ^{[1
]}

Rams, J ^{[1
]}

Solé, JG ^{[1
]}

机构：

[1] Univ Autonoma Madrid, Dept Fis Mat C IV, E-28049 Madrid, Spain

来源：

JOURNAL OF APPLIED PHYSICS | 2000年 / 87卷 / 03期

关键词：

D O I：

10.1063/1.371977

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this work, thermal effects on the spectroscopic and laser properties of Nd:YAl3(BO3)(4) crystal caused by pump heating are systematically investigated. Changes in the refractive indices, absorption coefficient, and emission band shape have been studied in a temperature range 20-200 degrees C. Temperatures up to 88 degrees C have been measured in a thermally isolated crystal when pumping with 800 mW of laser power at 807 nm. A decrease in infrared laser power at 1.06 mu m and its second harmonic (0.53 mu m) generated by self-frequency doubling is observed during the early seconds of laser operation. These reductions are explained in terms of the absorption efficiency reduction and of thermal phase mismatch (for second harmonic) induced by pump heating. Instabilities observed in the output (infrared and green) laser power during the initial seconds of laser action are satisfactorily explained in terms of Fabry-Perot-induced interference effects. (C) 2000 American Institute of Physics. [S0021-8979(00)03803-2].

引用

页码：1042 / 1048

页数：7

共 19 条

[1] Investigation of efficient self-frequency-doubling Nd:YAB lasers [J].

Bartschke, J ;

Knappe, R ;

Boller, KJ ;

Wallenstein, R .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1997, 33 (12) :2295-2300

[2] Heat generation in Nd:YVO4 with and without laser action [J].

Blows, JL ;

Omatsu, T ;

Dawes, J ;

Pask, H ;

Tateda, M .

IEEE PHOTONICS TECHNOLOGY LETTERS, 1998, 10 (12) :1727-1729

[3] REFRACTIVE INDEX AS A FUNCTION OF TEMPERATURE IN LINBO3 [J].

BOYD, GD ;

BOND, WL ;

CARTER, HL .

JOURNAL OF APPLIED PHYSICS, 1967, 38 (04) :1941-&

[4] Heat, fluorescence, and stimulated-emission power densities and fractions in Nd:YAG [J].

Brown, DC .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1998, 34 (03) :560-572

[5]

DU LZ, 1994, PROG NAT SCI, V4, P504

[6] DIODE-PUMPED SELF-FREQUENCY-DOUBLED NEODYMIUM YTTRIUM ALUMINUM BORATE (NYAB) LASER [J].

HEMMATI, H .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1992, 28 (04) :1169-1171

[7] TEMPERATURE-DEPENDENCE OF 2ND HARMONIC-GENERATION IN NYAB CRYSTALS [J].

HWANG, MY ;

LIN, JT .

OPTICS COMMUNICATIONS, 1993, 95 (1-3) :103-108

[8] Up-conversion luminescence in the Nd3+:YAB self frequency doubling laser crystal [J].

Jaque, D ;

Capmany, J ;

Molero, F ;

Luo, ZD ;

Sole, JG .

OPTICAL MATERIALS, 1998, 10 (03) :211-217

[9] Continuous-wave laser properties of the self-frequency-doubling YAl3(BO3)4:Nd crystal [J].

Jaque, D ;

Capmany, J ;

Sole, JG ;

Luo, ZD ;

Jiang, AD .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1998, 15 (06) :1656-1662

[10] Optical bands and energy levels of Nd3+ ion in the YAl3(BO3)(4) nonlinear laser crystal [J].

Jaque, D ;

Capmany, J ;

Luo, ZD ;

Sole, JG .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1997, 9 (44) :9715-9729

← 1 2 →