Multi-octave mid-infrared supercontinuum and frequency comb generation in a suspended As2Se3 ridge waveguide

Li, Zeli, Yuan, Jinhui, Mei, Chao, Li, Feng, Zhou, Xian, Yan, Binbin, Wu, Qiang, Wang, Kuiru, Sang, Xinzhu, Long, Keping and Yu, Chongxiu (2019) Multi-octave mid-infrared supercontinuum and frequency comb generation in a suspended As2Se3 ridge waveguide. Applied Optics, 58 (31). pp. 8404-8410. ISSN 1559-128X

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Official URL: https://doi.org/10.1364/ao.58.008404

Abstract

In this paper, we numerically investigate the mid-infrared supercontinuum (SC) generation in a suspended As2Se3 ridge waveguide, which is designed with the two zero-dispersion wavelengths. Simulation results show that when the pump pulses at wavelength 3.3 µm with width of 100 fs and peak power of 900 W are launched into the anomalous dispersion region of the designed waveguide with a length of 0.87 mm, the SC can be generated in the wavelength range from 1.76 to 14.42 µm (more than three octaves), extending deep into the “fingerprint” region. The stability of the generated SC is confirmed by the first-order coherence. Moreover, we demonstrate the performance of the SC-based frequency comb by assuming a 50 pulse pump source at a repetition rate of 100 MHz.

Item Type: Article
Subjects: F300 Physics
H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Elena Carlaw
Date Deposited: 01 Oct 2019 13:53
Last Modified: 21 Nov 2019 14:45
URI: http://nrl.northumbria.ac.uk/id/eprint/40950

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