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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 53, Iss. 22 — Aug. 1, 2014
  • pp: 5053–5057

Mode-field adaptor between large-mode-area fiber and single-mode fiber based on fiber tapering and thermally expanded core technique

Xuanfeng Zhou, Zilun Chen, Hang Zhou, and Jing Hou  »View Author Affiliations


Applied Optics, Vol. 53, Issue 22, pp. 5053-5057 (2014)
http://dx.doi.org/10.1364/AO.53.005053


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Abstract

We report a method to fabricate a mode-field adaptor (MFA) for a large-mode-area (LMA) fiber and single-mode fibers (SMFs) based on fiber tapering and the thermally expanded core (TEC) technique. Through adiabatically tapering a LMA fiber by an oxygen–hydrogen flame, the mode-field diameter is decreased effectively with nearly no extra loss, which makes it possible to realize mode-field adaptation between the LMA fiber and SMFs. Both numerical calculation and experimental results show it is workable to realize fundamental mode propagation in LMA fiber and get a low insertion loss by this method. For a LMA fiber (d=25μm, NA=0.06) and a SMF (d=4μm, NA=0.2), a low loss with less than 0.4 dB has been obtained both in the forward and backward directions experimentally.

© 2014 Optical Society of America

OCIS Codes
(170.0110) Medical optics and biotechnology : Imaging systems
(170.3010) Medical optics and biotechnology : Image reconstruction techniques
(170.3660) Medical optics and biotechnology : Light propagation in tissues

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: April 23, 2014
Manuscript Accepted: June 16, 2014
Published: July 30, 2014

Citation
Xuanfeng Zhou, Zilun Chen, Hang Zhou, and Jing Hou, "Mode-field adaptor between large-mode-area fiber and single-mode fiber based on fiber tapering and thermally expanded core technique," Appl. Opt. 53, 5053-5057 (2014)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-53-22-5053


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