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Proceedings Paper

Comparative research on medicine application with 0.53-um, 1.06-um, and 1.32-um Nd:YAG lasers
Author(s): Yahua Li; Zhenjia Li; Changhong Zhu; Yizhong Huang
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Paper Abstract

Because of its high power and excellent optical features, laser has almost been applied to everywhere of medical research and clinic. Over the past several years, laser medical has achieved a rapid progress, and laser medical instruments has developed promptly, each new wavelength can be successfully applied in diagnostic and treatment of diseases. Among the medical lasers, Nd:YAG solid-state laser systems have proven useful in surgical use operate, such as neurosurgery, gastroenterology, cardioangiology, urology, gynecology, dermatology and ENT. As with other solid-state lasers, the Nd:YAG laser can be made to emit various wavelengths by means of suitable resonator configurations and some newest solid-state laser technology, pumped by the Krypton lamp, the Nd:YAG laser at room temperature exhibits transition at 1.06 micrometer Nd:YAG, using nonlinear crystal and Q-switch to double its frequency can attain 0.53 micrometer green beam. In our laser systems, the efficiency at 1.06 micrometer is more than 3 percent, an efficiency of 0.5 percent at 1.32 micrometer and 0.53 micrometer can be attained. For a power of 100w at 1.06 micrometer, 15w at 1.32 micrometer and 0.53 micrometer can therefore be produced. All of three kinds Nd:YAG laser hold these characteristics: high output power; optical fiber transition that can be cooperated with endoscope. The paper mainly discusses laser operating characteristics and clinic applications of three kinds wavelengths at 0.53 micrometer 1.06 micrometer and 1.32 micrometer Nd:YAG laser systems.

Paper Details

Date Published: 23 September 1996
PDF: 4 pages
Proc. SPIE 2887, Lasers in Medicine and Dentistry: Diagnostics and Treatment, (23 September 1996); doi: 10.1117/12.251946
Show Author Affiliations
Yahua Li, Huazhong Univ. of Science and Technology (China)
Zhenjia Li, Huazhong Univ. of Science and Technology (China)
Changhong Zhu, Huazhong Univ. of Science and Technology (China)
Yizhong Huang, Huazhong Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 2887:
Lasers in Medicine and Dentistry: Diagnostics and Treatment
Brij M. Khorana; Junheng Li; Michail M. Pankratov, Editor(s)

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