Compact 151W green laser with U-type resonator for prostate surgery

被引：16

作者：

Bazyar, Hossein ^{[1
]}

Aghaie, Mohammad ^{[1
]}

Daemi, Mohammad Hossein ^{[1
]}

Bagherzadeh, Seyed Morteza ^{[1
]}

机构：

[1] Iranian Natl Ctr Laser Sci & Technol INLC, Tehran, Iran

来源：

OPTICS AND LASER TECHNOLOGY | 2013年 / 47卷

关键词：

Nd:YAG laser; Intracavity-frequency-doubled; U-type resonator; ND-YAG LASER; BEAM GENERATION; KTP LASER; ROD LASER; VAPORIZATION;

D O I：

10.1016/j.optlastec.2012.09.016

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We analyzed, designed and fabricated a U-type resonator for intra-cavity frequency doubling of a diode-side-pumped Q-switched Nd:YAG rod laser with high power and high stability for surgery of prostatic tissue. The resonator stability conditions were analyzed graphically in the various configurations for a U-type resonator. We obtained green light at 532 nm using a single KTP crystal, with average output power of 151 W at 10 kHz repetition rate, and with 113 ns pulse duration at 810W input pump power. We achieved 1064-532 nm conversion efficiency of 75.8%, and pump-to-green optical-optical efficiency of 18.6%. The green power fluctuation was +/- 1.0% and pointing stability was better than 4 wad. The green laser output was coupled to a side-firing medical fiber to transfer the laser beam to the prostatic tissue. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：237 / 241

页数：5

共 18 条

[1] High-power KTP laser prostatectomy: the new challenge to transurethral resection of the prostate [J].

Barber, NJ ;

Muir, GH .

CURRENT OPINION IN UROLOGY, 2004, 14 (01) :21-25

[2] High average power Q-switched green beam generation by intracavity frequency doubling of diode-side-pumped Nd:YAG/HGTR-KTP laser [J].

Chen, Haowei ;

Chen, Xiuyan ;

Li, Xiu ;

Hou, Yao ;

Wang, Siyuan ;

Ren, Zhaoyu ;

Bai, Jintao .

OPTICS AND LASER TECHNOLOGY, 2009, 41 (01) :1-4

[3] Technique and short-term outcome of green light laser (KTP, 80 W) vaporisatlion of the prostate [J].

Heinrich, Elmar ;

Schiefelbein, Frank ;

Schoen, Georg .

EUROPEAN UROLOGY, 2007, 52 (06) :1632-1637

[4] Laser Fibre Deterioration and Loss of Power Output During Photo-Selective 80-W Potassium-Titanyl-Phosphate Laser Vaporisation of the Prostate [J].

Hermanns, Thomas ;

Sulser, Tullio ;

Fatzer, Markus ;

Baumgartner, Martin K. ;

Rey, Julien M. ;

Sigrist, Markus W. ;

Seifert, Hans-Helge .

EUROPEAN UROLOGY, 2009, 55 (03) :679-686

[5]

Koechner W., 1996, SOLID STATE LASER EN

[6] Stabilization of a high-power diode-side-pumped intracavity-frequency-doubled CW Nd:YAG laser by compensating for thermal lensing of a KTP crystal and Nd:YAG rods [J].

Kojima, T ;

Fujikawa, S ;

Yasui, K .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1999, 35 (03) :377-380

[7] Highly efficient 68-W green-beam generation by use of an intracavity frequency-doubled diode side-pumped Q-switched Nd:YAG rod laser [J].

Konno, S ;

Fujikawa, S ;

Yasui, K .

APPLIED OPTICS, 1998, 37 (27) :6401-6404

[8] Efficient high-power green beam generation by use of an intracavity frequency-doubled laser-diode-pumped Q-switched Nd:YAG laser [J].

Konno, S ;

Yasui, K .

APPLIED OPTICS, 1998, 37 (03) :551-554

[9] High-brightness 138-W green laser based on an intracavity-frequency-doubled diode-side-pumped Q-switched Nd:YAG laser [J].

Konno, S ;

Kojima, T ;

Fujikawa, S ;

Yasui, K .

OPTICS LETTERS, 2000, 25 (02) :105-107

[10] High-average-power diode-array-pumped frequency-doubled YAG laser [J].

LeGarrec, BJ ;

Raze, GJ ;

Thro, PY ;

Gilbert, M .

OPTICS LETTERS, 1996, 21 (24) :1990-1992

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