Sapphire-conductive end-cooling of high power cryogenic Yb:YAG lasers

被引：67

作者：

Tokita, S

Kawanaka, J

Fujita, M

Kawashima, T

Izawa, Y

机构：

[1] Osaka Univ, Inst Laser Engn, Osaka 5650871, Japan

[2] Inst Laser Technol, Osaka 5650871, Japan

[3] Hamamatsu Photon KK, Cent Res Lab, Shizuoka 4348601, Japan

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2005年 / 80卷 / 06期

关键词：

D O I：

10.1007/s00340-005-1779-4

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have demonstrated a high-power laser oscillator with end-cooling using a sapphire-sandwiched Yb:YAG disk at near liquid nitrogen temperature. An output power of 75 W with a near-diffraction-limited beam was obtained from a 0.6-mm thick active medium. The slope efficiency and the maximum optical-optical efficiency were 80 and 70%, respectively, with respect to absorbed pump power.

引用

收藏

页码：635 / 638

页数：4

相关论文

共 19 条

[11] Tunable continuous-wave Yb:YLF laser operation with a diode-pumped chirped-pulse amplification system [J].

Kawanaka, J ;

Nishioka, H ;

Inoue, N ;

Ueda, K .

APPLIED OPTICS, 2001, 40 (21) :3542-3546

[12]

Larionov M, 2001, OSA TRENDS OPT PHOTO, V50, P625

[13] 165-W cryogenically cooled Yb:YAG laser [J].

Ripin, DJ ;

Ochoa, JR ;

Aggarwal, RL ;

Fan, TY .

OPTICS LETTERS, 2004, 29 (18) :2154-2156

[14] LIQUID-NITROGEN-COOLED TI-AL2O3 LASER [J].

SCHULZ, PA ;

HENION, SR .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1991, 27 (04) :1039-1047

[15] Quantum-defect-limited operation of diode-pumped Yb:YAG laser at low temperature [J].

Shoji, T ;

Tokita, S ;

Kawanaka, J ;

Fujita, M ;

Izawa, Y .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2004, 43 (4A) :L496-L498

[16] THERMAL CONDUCTIVITY OF GARNETS AND PHONON SCATTERING BY RARE-EARTH IONS [J].

SLACK, GA ;

OLIVER, DW .

PHYSICAL REVIEW B-SOLID STATE, 1971, 4 (02) :592-&

[17] Analytical and experimental studies on the characteristics of composite solid-state laser rods in diode-end-pumped geometry [J].

Tsunekane, M ;

Taguchi, N ;

Kasamatsu, T ;

Inaba, H .

IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, 1997, 3 (01) :9-18

[18] Reduction of thermal effects in a diode-end-pumped, composite Nd:YAG rod with a sapphire end [J].

Tsunekane, M ;

Taguchi, N ;

Inaba, H .

APPLIED OPTICS, 1998, 37 (15) :3290-3294

[19] Thermal coefficients of the expansion and refractive index in YAG [J].

Wynne, R ;

Daneu, JL ;

Fan, TY .

APPLIED OPTICS, 1999, 38 (15) :3282-3284