Investigation of giant Kerr nonlinearity in quantum cascade lasers using fs mid-IR pulses

Hong Cai, Sheng Liu,Elaine Lalanne,Peter Q Liu,Pierre M Bouzi,Xiaojun Wang,Anthony M Johnson

Photonics Conference（2012）

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摘要

Femtosecond mid-IR pulses were coupled into a quantum cascade laser. The spectral broadening and far-field profile of the transmitted pulses showed an intensity dependence. n2 was experimentally estimated to be on the order of ~10-9cm2/W.

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关键词

high-speed optical techniques,infrared sources,laser beams,optical kerr effect,quantum cascade lasers,spectral line broadening,far-field profile,femtosecond mid-ir pulses,fs mid-ir pulses,giant kerr nonlinearity,intensity dependence,spectral broadening,transmitted pulses,nonlinear optics,optical pumping

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