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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 5, Iss. S1 — May. 31, 2007
  • pp: S86–S88

Design guidelines and characteristics of a four-layer large flattened mode fiber

Chujun Zhao, Lei Shen, Yunxia Ye, Zhixiang Tang, Dianyuan Fan, Guanghui Chen, and Wei Mu  »View Author Affiliations


Chinese Optics Letters, Vol. 5, Issue S1, pp. S86-S88 (2007)


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Abstract

A refractive index profile design, which can enable us to obtain a flat-top fundamental mode field around the center, is presented. The theoretical method to analyze the four-layer large flattened mode (LFM) fibers is given. The properties of the fiber, including the fundamental and higher order modal fields, effective area, and bending loss, are discussed. The reasons forming the different modal fields are explained. By discussion, the larger effective area of the LFM fiber compared with conventional step-index fiber is proven and the feasibility to suppress the higher order modes via bending is given.

© 2007 Chinese Optics Letters

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2400) Fiber optics and optical communications : Fiber properties
(140.3510) Lasers and laser optics : Lasers, fiber

Citation
Chujun Zhao, Lei Shen, Yunxia Ye, Zhixiang Tang, Dianyuan Fan, Guanghui Chen, and Wei Mu, "Design guidelines and characteristics of a four-layer large flattened mode fiber," Chin. Opt. Lett. 5, S86-S88 (2007)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-5-S1-S86

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