Intracavity amplitude modulation of quantum-cascade lasers using intersubband absorption in the active region under reverse bias

Arkadiy Lyakh; Richard Maulini; Alexei Tsekoun; Rowel Go; C. Kumar N. Patel

doi:10.1117/12.767838

29 January 2008 Intracavity amplitude modulation of quantum-cascade lasers using intersubband absorption in the active region under reverse bias

Arkadiy Lyakh, Richard Maulini, Alexei Tsekoun, Rowel Go, C. Kumar N. Patel

Author Affiliations +

Proceedings Volume 6909, Novel In-Plane Semiconductor Lasers VII; 690910 (2008) https://doi.org/10.1117/12.767838
Event: Integrated Optoelectronic Devices 2008, 2008, San Jose, California, United States

Abstract

We have analyzed light absorption in a quantum cascade laser structure under forward and reverse bias. Strong absorption modulation at the laser frequency is predicted and observed experimentally for the voltage variation within the high differential resistance voltage range. We propose to use this mechanism for monolithically integrated intracavity modulation of quantum cascade lasers, promising suppressed thermal chirp and fast modulation capability. In addition, the described method allows for extraction of the intersubband absorption from the total waveguide losses.

Citation Download Citation

Arkadiy Lyakh, Richard Maulini, Alexei Tsekoun, Rowel Go, and C. Kumar N. Patel "Intracavity amplitude modulation of quantum-cascade lasers using intersubband absorption in the active region under reverse bias", Proc. SPIE 6909, Novel In-Plane Semiconductor Lasers VII, 690910 (29 January 2008); https://doi.org/10.1117/12.767838

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