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High-speed all-optical modulation of a standard quantum cascade laser by front facet illumination

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1063/1.3223597
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Affiliation
  1. National Research Council of Canada. NRC Institute for Microstructural Sciences
FormatText, Article
Abstract
A simple experimental scheme to control intersubband lasing transition by optically induced nonresonant interband transition is presented, allowing for high-speed all-optical modulation of mid-infrared (MIR) quantum cascade laser (QCL). Illuminating the QCL front facet with 100 fs Ti:sapphire laser pulse, a fast modulation of a cw-MIR emission is observed with an estimated transient time of less than 81 ps, limited by instrument bandwidth, and a modulation depth of 18%. It has a great potential for high-speed modulation of high power QCL at room temperature.
Publication date
PublisherAIP
In
  • Applied Physics Letters 95, no. 10, 101104.
LanguageEnglish
Peer reviewedYes
NPARC number23004971
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Record identifiera9c36bc8-1825-4f27-896f-5703b6aa503b
Record created2019-01-24
Record modified2020-04-16
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