Design of broadband single-polarization single-mode holey fiber

Tieying Guo; Shuqin Lou; Yuchun Lu; Honglei Li; Liwen Wang; Weiguo Chen

doi:10.1117/12.852066

1 December 2009 Design of broadband single-polarization single-mode holey fiber

Tieying Guo, Shuqin Lou, Yuchun Lu, Honglei Li, Liwen Wang, Weiguo Chen

Proceedings Volume 7630, Passive Components and Fiber-based Devices VI; 76300G (2009) https://doi.org/10.1117/12.852066
Event: Asia Communications and Photonics, 2009, Shanghai, Shanghai , China

Abstract

We propose a novel structure of single-polarization single-mode(SPSM) holey fiber designed based on resonant coupling effect. The proposed fiber is able to achieve SPSM operation over an ultra-broad bandwidth as large as 920nm ranging from 1.48μm to 2.4μm, within which only one polarization state of the fundamental mode can be effectively guided. With the aid of six smaller holes around the central core, the effective mode area of the fiber is enlarged and the chromatic dispersion curve is flattened. The numerical results indicate that the proposed fiber achieves nearly zero ultra-flattened dispersion over a wide spectral range and the effective mode area is approaching ~78μm2 at 1550nm. Moreover, the structure shows superiority in output beam quality owing to the symmetry of the central core region, and also exhibits great modal compatibility with SMF.

Citation Download Citation

Tieying Guo, Shuqin Lou, Yuchun Lu, Honglei Li, Liwen Wang, and Weiguo Chen "Design of broadband single-polarization single-mode holey fiber", Proc. SPIE 7630, Passive Components and Fiber-based Devices VI, 76300G (1 December 2009); https://doi.org/10.1117/12.852066

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KEYWORDS

Polarization

Dispersion

Finite element methods

Single mode fibers

Structured optical fibers

Refractive index

Silica

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