Suppression of spatial hole burning and pulse stabilization for actively modelocked quantum cascade lasers using quantum coherent absorption

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Citation of Original Publication

Shimu, S. S., A. Docherty, M. A. Talukder, and C. R. Menyuk. “Suppression of Spatial Hole Burning and Pulse Stabilization for Actively Modelocked Quantum Cascade Lasers Using Quantum Coherent Absorption.” Journal of Applied Physics 113, no. 5 (February 5, 2013): 053106. https://doi.org/10.1063/1.4790145.

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This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Shimu, S. S., A. Docherty, M. A. Talukder, and C. R. Menyuk. “Suppression of Spatial Hole Burning and Pulse Stabilization for Actively Modelocked Quantum Cascade Lasers Using Quantum Coherent Absorption.” Journal of Applied Physics 113, no. 5 (February 5, 2013): 053106. https://doi.org/10.1063/1.4790145. and may be found at https://doi.org/10.1063/1.4790145.

Abstract

We theoretically study of an actively modelocked quantum cascade laser in which we incorporate quantum coherent absorption by interleaving quantum coherent absorbing periods with gain periods. We show that this absorption suppresses the spatial hole burning that is responsible for pulse instability. As a consequence, the laser produces a stable train of single-peak soliton-like pulses with pulse durations less than 1.25 ps over a broad range of pump powers. We also show that the laser self-starts from initial quantum noise.