Highly coherent supercontinuum generation in a polarization-maintaining CS2-core photonic crystal fiber

Xu, Feng, Yuan, Jinhui, Mei, Chao, Yan, Binbin, Zhou, Xian, Wu, Qiang, Wang, Kuiru, Sang, Xinzhu, Yu, Chongxiu and Farrell, Gerald (2019) Highly coherent supercontinuum generation in a polarization-maintaining CS2-core photonic crystal fiber. Applied Optics, 58 (6). pp. 1386-1392. ISSN 0003-6935

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Official URL: https://doi.org/10.1364/ao.58.001386

Abstract

In this paper, we design a polarization-maintaining CS2-core photonic crystal fiber (PM-CCPCF). The two air holes at x-direction are infiltrated with C2H5OH in order to introduce the birefringence. By optimizing the structure parameters of the PM-CCPCF, it is demonstrated that the x-polarization fundamental mode has all-normal dispersion profile and the corresponding y-polarization fundamental mode has anomalous dispersion profile for pump wavelength 1.76 μm. Then, we investigate the supercontinuum (SC) generations when different fiber lengths, pump peak powers, and pump pulse widths are chosen, respectively. Simulation results show that for the x-polarization and y-polarization fundamental modes, highly coherent SCs can be generated by appropriately choosing the fiber length and pump pulse parameters. Finally, nonlinear propagation dynamics are analysed when the optimized fiber length and pump pulse parameters are used. The bandwidth of the SCs generated for x-polarization and y-polarization fundamental mode can be up to 0.82 and 1.26 octave, respectively.

Item Type: Article
Uncontrolled Keywords: Supercontinuum generation, Photonic crystal fibers, Fibers, polarization-maintaining
Subjects: F300 Physics
H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Paul Burns
Date Deposited: 16 Jan 2019 10:32
Last Modified: 27 Feb 2019 17:15
URI: http://nrl.northumbria.ac.uk/id/eprint/37604

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