Passively mode-locked interband cascade optical frequency combs

Scientific Reports
Mahmood BagheriJerry R Meyer

Abstract

Since their inception, optical frequency combs have transformed a broad range of technical and scientific disciplines, spanning time keeping to navigation. Recently, dual comb spectroscopy has emerged as an attractive alternative to traditional Fourier transform spectroscopy, since it offers higher measurement sensitivity in a fraction of the time. Midwave infrared (mid-IR) frequency combs are especially promising as an effective means for probing the strong fundamental absorption lines of numerous chemical and biological agents. Mid-IR combs have been realized via frequency down-conversion of a near-IR comb, by optical pumping of a micro-resonator, and beyond 7 μm by four-wave mixing in a quantum cascade laser. In this work, we demonstrate an electrically-driven frequency comb source that spans more than 1 THz of bandwidth centered near 3.6 μm. This is achieved by passively mode-locking an interband cascade laser (ICL) with gain and saturable absorber sections monolithically integrated on the same chip. The new source will significantly enhance the capabilities of mid-IR multi-heterodyne frequency comb spectroscopy systems.

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Citations

Jun 4, 2019·International Journal of Molecular Sciences·Barbara PatriziFrancesco D'Amato
Feb 14, 2019·Proceedings of the National Academy of Sciences of the United States of America·Zaijun ChenNathalie Picqué
Apr 16, 2019·Optics Letters·Lukasz A SterczewskiGerard Wysocki
Nov 28, 2019·Optics Letters·Lukasz A SterczewskiJerry R Meyer
Sep 13, 2019·Optics Express·Lukasz A SterczewskiGerard Wysocki
Jan 21, 2021·Sensors·Jerry R MeyerIgor Vurgaftman
Jan 2, 2021·International Journal of Molecular Sciences·Luigi SantamariaPasquale Maddaloni
Mar 4, 2019··Ursula KellerDominik Waldburger
Mar 13, 2019··Igor VurgaftmanChadwick L. Canedy
Sep 14, 2020··C. D. MerrittM. Kim

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