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Optical Engineering

Transmission properties of infrared hollow fibers produced by drawing a glass-tube preform
Author(s): Ryosuke Kasahara; Yuji Matsuura; Takashi Katagiri; Mitsunobu Miyagi
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Paper Abstract

To produce long and flexible hollow optical fibers for mid-infrared lasers at a low cost, hollow fibers are fabricated by using a glass drawing technique. When the wall thickness of the glass tube is properly designed and controlled, the fiber shows a low loss at a desired wavelength. By applying pressure into the tube preform, the glass capillary with a thin glass wall is drawn, and this effectively reduces the absorption loss in the glass material. The measured loss of 40-cm long fiber with an inner diameter of 320 μm is 1.7 dB for an erbium: yttrium aluminum garnet laser light with a wavelength of 2.94 μm.

Paper Details

Date Published: 1 February 2007
PDF: 5 pages
Opt. Eng. 46(2) 025001 doi: 10.1117/1.2710186
Published in: Optical Engineering Volume 46, Issue 2
Show Author Affiliations
Ryosuke Kasahara, Tohoku Univ. (Japan)
Yuji Matsuura, Tohoku Univ. (Japan)
Takashi Katagiri, The Institute of Physical and Chemical Research (Japan)
Mitsunobu Miyagi, Sendai National College of Technology (Japan)

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