Generation of two-wavelength infrared optical signals based on coupled parametric six-wave mixings

Changjun Zhu; Na Tong; Bing Xue; Xuejun Zhai

doi:10.1117/12.2075820

19 February 2015 Generation of two-wavelength infrared optical signals based on coupled parametric six-wave mixings

Changjun Zhu, Na Tong, Bing Xue, Xuejun Zhai

Proceedings Volume 9449, The International Conference on Photonics and Optical Engineering (icPOE 2014); 94490S (2015) https://doi.org/10.1117/12.2075820
Event: The International Conference on Photonics and Optical Engineering and the Annual West China Photonics Conference (icPOE 2014), 2014, Xi'an, China

Abstract

Two wavelength optical signals in the infrared regime were generated in atomic rubidium (Rb) vapor using a Ti:sapphire laser amplifier and competition between the two signals was observed. The effects of Rb number density, pump laser intensity and the chirp of laser pulses on the characteristics of the two signals were investigated. The results show that the two signals were mainly generated by two coupled difference frequency six wave mixings and, in the meantime, two coupled six wave mixing channels were identified. The competition between the two signals is dominantly governed by phase matching conditions in the two six wave mixing processes. The phase matching conditions in the two channels are primarily determined by the Rb number density and, whereas, the phase matching conditions are scarcely related to pump laser intensity and the chirp of pump laser pulses.

Citation Download Citation

Changjun Zhu, Na Tong, Bing Xue, and Xuejun Zhai "Generation of two-wavelength infrared optical signals based on coupled parametric six-wave mixings", Proc. SPIE 9449, The International Conference on Photonics and Optical Engineering (icPOE 2014), 94490S (19 February 2015); https://doi.org/10.1117/12.2075820

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KEYWORDS

Rubidium

Pulsed laser operation

Refractive index

Signal processing

Infrared radiation

Phase matching

Chemical species

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