Ultra-wideband single-polarization single-mode photonic crystal fiber with high nonlinearity and low dispersion

Lin An; Zheng Zheng; Zheng Li; Yang Liu; Tao Zhou; Jiangtao Cheng

doi:10.1117/12.853051

1 December 2009 Ultra-wideband single-polarization single-mode photonic crystal fiber with high nonlinearity and low dispersion

Lin An, Zheng Zheng, Zheng Li, Yang Liu, Tao Zhou, Jiangtao Cheng

Author Affiliations +

Proceedings Volume 7630, Passive Components and Fiber-based Devices VI; 763012 (2009) https://doi.org/10.1117/12.853051
Event: Asia Communications and Photonics, 2009, Shanghai, Shanghai , China

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.

Citation Download Citation

Lin An, Zheng Zheng, Zheng Li, Yang Liu, Tao Zhou, and Jiangtao Cheng "Ultra-wideband single-polarization single-mode photonic crystal fiber with high nonlinearity and low dispersion", Proc. SPIE 7630, Passive Components and Fiber-based Devices VI, 763012 (1 December 2009); https://doi.org/10.1117/12.853051

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