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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 45, Iss. 27 — Sep. 20, 2006
  • pp: 7174–7178

Bundled hollow optical fibers for transmission of high-peak-power Q-switched Nd:YAG laser pulses

Ozgur Yilmaz, Mitsunobu Miyagi, and Yuji Matsuura  »View Author Affiliations

Applied Optics, Vol. 45, Issue 27, pp. 7174-7178 (2006)

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A hollow-fiber bundle was designed and used to deliver high-peak-power pulses from a Q-switched Nd:YAG laser. An 80 cm long bundle with a total diameter of 5.5 mm was composed of 37 glass capillaries with bore diameters of 0.7 mm . Beam-resizing optics with two lenses were used to couple the laser beam into the bundle. The measured coupling loss due to the limited aperture ratio of the bundle was 2.3 dB , and the transmission loss at wavelengths of 1064 and 532 nm was 0.3 dB . When an inert gas flowed through the bores of the capillaries, the maximum output pulse energy was 200 mJ , which was the limit of the laser used in the experiment. Hollow-fiber bundles withstand irradiation better than single hollow fibers and silica-glass optical fibers do. They are suitable for many dermatological applications because they can be used to irradiate a large area.

© 2006 Optical Society of America

OCIS Codes
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(170.1870) Medical optics and biotechnology : Dermatology
(170.3890) Medical optics and biotechnology : Medical optics instrumentation

Original Manuscript: March 8, 2006
Revised Manuscript: May 9, 2006
Manuscript Accepted: May 21, 2006

Virtual Issues
Vol. 1, Iss. 10 Virtual Journal for Biomedical Optics

Ozgur Yilmaz, Mitsunobu Miyagi, and Yuji Matsuura, "Bundled hollow optical fibers for transmission of high-peak-power Q-switched Nd:YAG laser pulses," Appl. Opt. 45, 7174-7178 (2006)

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