Multiple-band, single-mode, high-power, phase-locked, mid-infrared quantum cascade laser arrays

Manijeh Razeghi,Wenjia Zhou,Quanyong Lu,Donghai Wu,Steven Boyd Slivken

Imaging and Applied Optics 2018 (3D, AO, AIO, COSI, DH, IS, LACSEA, LS&C, MATH, pcAOP) (2018), paper JTh1A.2（2018）

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Abstract

Single-mode, 16-channel, phase-locked laser arrays based on quantum cascade laser technology are demonstrated at multiple spectral bands across the mid-infrared spectrum region. High peak output power of 50W is achieved around the long-wavelength band of 7.7µm, while a side mode suppression ratio over 25dB is obtained. Far field distribution measurement result indicates a uniform phase distribution across the array output.

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Key words

multiple-band,single-mode,high-power,phase-locked,mid-infrared

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