Monolithic frequency comb platform based on interband cascade lasers and detectors

Benedikt Schwarz, Johannes Hillbrand, Maximilian Beiser, Aaron Maxwell Andrews, Gottfried Strasser, Hermann Detz, Anne Schade, Robert Weih, Sven Höfling

Research output: Contribution to journalArticlepeer-review

75 Citations (Scopus)


New insights into the laser dynamics of interband cascade lasers reveal the possibility to generatefrequency modulated combs by utilizing their inherent gain nonlinearity. The resultingcomb state is characterized by chirped instantaneous frequency, which appears to be universalto frequency combs based on gain induced four-wave mixing. The fast dynamics in the injectorsfurther allow the realization of exceptionally sensitive and high-speed photodetectors,operating at room-temperature, using the very same epilayer structure. With the capability ofintegrating frequency combs and ultra-fast detectors on a single chip consuming less than awatt of electric power, interband cascade laser technology provides a complete and unmatchedplatform for future monolithic and battery-driven dual-comb spectrometers.
Original languageEnglish
Pages (from-to)890-895
Number of pages6
Issue number7
Early online date10 Jul 2019
Publication statusPublished - 12 Jul 2019


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