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Proceedings Paper

Ultra-wideband single-polarization single-mode photonic crystal fiber with high nonlinearity and low dispersion
Author(s): Lin An; Zheng Zheng; Zheng Li; Yang Liu; Tao Zhou; Jiangtao Cheng
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Paper Abstract

We report a novel design of photonic crystal fiber (PCF) with a rectangular array of four closely-spaced, highly elliptical air holes in the core region and a circular-air-hole cladding. The proposed PCF is able to support ultra-wideband singlepolarization single-mode (SPSM) transmission from the visible band to the near infrared band. With the aid of the inner cladding formed by the central air holes, one polarization of the fundamental mode can be cut off at very short wavelengths and ultra-wideband SPSM propagation can be achieved. The inner cladding also suppresses the higher order modes and allows large air filling fraction in the outer cladding while the proposed fiber remains SPSM, which significantly reduces the mode effective area and the confinement loss. Our simulation results indicate that the proposed PCF has a 1540 nm SMSP range with < 0.25 dB/km confinement loss and an effective area of 2.2 m2. Moreover, the group velocity dispersion (GVD) of the proposed PCF can also be tuned to be flat and near zero at the near infrared band (~800 nm) by optimizing the outer cladding structure, potentially enabling many nonlinear applications.

Paper Details

Date Published: 1 December 2009
PDF: 5 pages
Proc. SPIE 7630, Passive Components and Fiber-based Devices VI, 763012 (1 December 2009); doi: 10.1117/12.853051
Show Author Affiliations
Lin An, BeiHang Univ. (China)
Zheng Zheng, BeiHang Univ. (China)
Zheng Li, BeiHang Univ. (China)
Yang Liu, BeiHang Univ. (China)
Tao Zhou, New Jersey Institute of Technology (United States)
Jiangtao Cheng, The Pennsylvania State Univ. (United States)

Published in SPIE Proceedings Vol. 7630:
Passive Components and Fiber-based Devices VI
Perry P. Shum, Editor(s)

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