Gain-shaped terahertz quantum cascade laser frequency combs

We demonstrate that adding carefully engineered resonant loss to a quantum cascade laser cavity can counteract the diffusive effect of the gain medium, allowing broader bandwidth combs to form. An improvement of 30\% in comb bandwidth is reported.

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Bibliographic Details
Published in2024 IEEE Research and Applications of Photonics in Defense Conference (RAPID) pp. 1 - 2
Main Authors Roy, Mithun, Xiao, Zhenyang, Addamane, Sadhvikas, Burghoff, David
Format Conference Proceeding
LanguageEnglish
Published IEEE 14.08.2024
Subjects
Bandwidth
diffusion
dispersion
frequency combs
gain shaping
Optical losses
Photonics
Quantum cascade lasers
Resonant frequency
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Abstract We demonstrate that adding carefully engineered resonant loss to a quantum cascade laser cavity can counteract the diffusive effect of the gain medium, allowing broader bandwidth combs to form. An improvement of 30\% in comb bandwidth is reported.
AbstractList We demonstrate that adding carefully engineered resonant loss to a quantum cascade laser cavity can counteract the diffusive effect of the gain medium, allowing broader bandwidth combs to form. An improvement of 30\% in comb bandwidth is reported.
Author Addamane, Sadhvikas
Roy, Mithun
Burghoff, David
Xiao, Zhenyang
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Snippet We demonstrate that adding carefully engineered resonant loss to a quantum cascade laser cavity can counteract the diffusive effect of the gain medium,...
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SubjectTerms Bandwidth
diffusion
dispersion
frequency combs
gain shaping
Optical losses
Photonics
Quantum cascade lasers
Resonant frequency
Title Gain-shaped terahertz quantum cascade laser frequency combs
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