Design and construction of a 110 W green laser for medical application

被引:14
作者
Hajiesmaeilbaigi, F. [1 ]
Razzaghi, H. [1 ]
Mandizadeh, M. [1 ]
Moghaddam, M. R. A. [1 ]
Ruzbehani, M. [1 ]
机构
[1] Laser & Opt Res Sch, Tehran, Iran
关键词
Nd:YAG laser; Photo-selective vaporization of the prostate (PVP); Benign prostatic hyperplasia (BPH); ND-YAG LASER; ROD LASER; POWER; VAPORIZATION; PROSTATE; KTP;
D O I
10.1016/j.optlastec.2011.04.013
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
In this paper, the design and the construction of a high-power side-diode-pumped Nd:YAG solid-state laser at repetition rates of 6 and 10 kHz has been presented. Second harmonic of the Nd:YAG laser with green light at 532 nm, with an average power of 111.5W at 10 kHz repetition rate, and with 90 ns pulse duration, has been obtained by the nonlinear crystal of KTP with 59% conversion efficiency and 12% diode-to-green optical-optical efficiency in the linear resonator. Beam spot size and divergence is 4 mm and 8 mrad, respectively. The laser stability is about 97%. As a medical application of this laser, investigation of degree of effectiveness and penetration depth of laser on adenomas of resected prostate after open prostatectomy has been done. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1428 / 1430
页数:3
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