Mid-IR optical amplifications using resonant gain of quantum cascade lasers
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Using quantum-cascade-lasers (QCL) as resonant optical amplifiers, active filters, and detectors with gain, we demonstrated signal amplification in the mid-IR wavelength range. Optical gain of >10dB and electrical gain of >28dB were achieved. OSA 2012.
CLEO: Applications and Technology, CLEO_AT 2012
author list (cited authors)
Guo, D., Chen, X., Cheng, L., Belyanin, A., Trivedi, S., & Choa, F. S.