High-efficiency stable-213nm generation for LASIK application

Zhenglin Wang, Kamal Alameh, Rong Zheng

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

3 Citations (Scopus)

Abstract

213nm Solid-state laser technology provides an alternative method to replace toxic excimer laser in LASIK system. In this paper, we report a compact fifth harmonic generation system to generate high pulse energy 213nm laser from Q-switched Nd:YAG laser for LASIK application based on three stages harmonic generation procedures. A novel crystal housing was specifically designed to hold the three crystals with each crystal has independent, precise angular adjustment structure and automatic tuning control. The crystal temperature is well maintained at ∼130°C to improve harmonic generation stability and crystal operation lifetime. An output pulse energy 35mJ is obtained at 213nm, corresponding to total conversion efficiency ∼10% from 1064nm pump laser. In system verification tests, the 213nm output power drops less than 5% after 5 millions pulse shots and no significant damage appears in the crystals.

Original languageEnglish
Title of host publicationNonlinear Optical Phenomena and Applications
EditorsQihuang Gong, Yiping Cui, Roger A. Lessard
Place of PublicationBellingham, Washington
PublisherSPIE
Pages200-205
Number of pages6
DOIs
Publication statusPublished - 27 May 2005
Externally publishedYes
EventNonlinear Optical Phenomena and Applications - Beijing, China
Duration: 8 Nov 200411 Nov 2004

Publication series

NameProceedings of SPIE
PublisherSPIE
Volume5646
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceNonlinear Optical Phenomena and Applications
CountryChina
CityBeijing
Period8/11/0411/11/04

Keywords

  • BBO
  • CLBO
  • Fifth harmonic generation
  • LASIK
  • UV optical damage

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