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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 36, Iss. 21 — Nov. 1, 2011
  • pp: 4248–4250

Effects of twisting and bending on LP 21 mode propagation in optical fiber

Yufeng Yuan, George Wu, Xian Li, Yuqiang Fan, and Xingkun Wu  »View Author Affiliations

Optics Letters, Vol. 36, Issue 21, pp. 4248-4250 (2011)

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Twisting and bending characteristics of low-multimode LP 21 mode propagation in optical fibers is presented for the first time. Theoretical fiber mode modeling, combining geometrical rotation with opto-elastic effects, demonstrates that the propagation of the LP 21 mode is bending-effect-immune. Experimental testing verifies that the LP 21 mode specklegram rotates 0.9112 of the fiber twist angle in a fused silica fiber, independent of any fiber bending. This characteristic allows for the LP 21 mode to be highly applicable in fiber specklegram sensors.

© 2011 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2370) Fiber optics and optical communications : Fiber optics sensors

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: August 8, 2011
Revised Manuscript: September 23, 2011
Manuscript Accepted: September 26, 2011
Published: October 28, 2011

Yufeng Yuan, George Wu, Xian Li, Yuqiang Fan, and Xingkun Wu, "Effects of twisting and bending on LP21 mode propagation in optical fiber," Opt. Lett. 36, 4248-4250 (2011)

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