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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 5 — Feb. 27, 2012
  • pp: 4812–4818

All-fiber low-loss connector for accessing both close cores of twin-core fiber

Ruifeng Zhao, Li Pei, Tigang Ning, and Song Gao  »View Author Affiliations

Optics Express, Vol. 20, Issue 5, pp. 4812-4818 (2012)

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A novel all-fiber connector is proposed for connecting each core of a twin-core fiber (TCF) to a single-core fiber (SCF) core simultaneously and accessing independently the both close cores of the TCF. The connector is mainly composed of two cascaded pieces of collinear four-core fiber (CFCF). The two close optical fields launched from the TCF are separated into two far apart optical fields, so that each optical field could be butt-coupled into one of the cores of one gemini fiber segment, which has two single-mode SCF pigtails. For the simulated example, the center distance of the two optical fields is increased from 16 μm to more than 90 μm, the cross-talk is −37 dB, and the power loss is 0.056 dB. The feasibility of the strategy is partially demonstrated experimentally by fabricating a CFCF by groove & stack & draw method and one gemini fiber segment with pigtails by flame-brushing technology.

© 2012 OSA

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2340) Fiber optics and optical communications : Fiber optics components

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: October 24, 2011
Revised Manuscript: November 21, 2011
Manuscript Accepted: November 21, 2011
Published: February 13, 2012

Ruifeng Zhao, Li Pei, Tigang Ning, and Song Gao, "All-fiber low-loss connector for accessing both close cores of twin-core fiber," Opt. Express 20, 4812-4818 (2012)

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