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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 16 — Jul. 30, 2012
  • pp: 18079–18084

Structural microfiber long-period gratings

Li-Peng Sun, Jie Li, Long Jin, and Bai-Ou Guan  »View Author Affiliations


Optics Express, Vol. 20, Issue 16, pp. 18079-18084 (2012)
http://dx.doi.org/10.1364/OE.20.018079


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Abstract

We experimentally demonstrate a novel structural long-period grating by helically coiling one microfiber onto another with the relatively thicker diameter. Owing to the strong periodic modulation of the coiled microfiber to the evanescent field of the straight microfiber, a resonance transmission notch of ~16.2 dB can be induced for a compact device length of ~450μm only (4 helical periods). Moreover, the filtered light energy from the straight fiber can emerge again at the output of the coiled one, providing great flexibility in producing new device functions. The spectral response to external strain is investigated and wide wavelength tuning range of around 106nm is discussed.

© 2012 OSA

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.2340) Fiber optics and optical communications : Fiber optics components
(230.3990) Optical devices : Micro-optical devices

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: May 14, 2012
Revised Manuscript: July 3, 2012
Manuscript Accepted: July 6, 2012
Published: July 23, 2012

Citation
Li-Peng Sun, Jie Li, Long Jin, and Bai-Ou Guan, "Structural microfiber long-period gratings," Opt. Express 20, 18079-18084 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-16-18079


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