Auth, Dominik Matthias (2022)
Frequency- and amplitude- modulated semiconductor laser frequency combs.
Technische Universität Darmstadt
doi: 10.26083/tuprints-00021668
Dissertation, Erstveröffentlichung, Verlagsversion
Kurzbeschreibung (Abstract)
Chip-scale coherent semiconductor light sources generating optical frequency combs currently revolutionize mid-infrared on-chip spectroscopy, near-infrared optical communications and nonlinear microscopy. Their key advantages is the efficient generation of narrow and equidistant spectral lines or laser modes with a fixed phase relationship across a broadband spectral region. An attractive realization of such combs is based on nanostructured semiconductor lasers with semiconductor quantum dots forming their active region. In this thesis, frst, the formation of two types of optical frequency combs in a semiconductor quantum dot laser is presented: in-phase synchronization of the intermode beatings, leading to optical pulses, and the splay-phase synchronization, leading to quasi continuous wave optical output. Both states can be generated on demand in a single semiconductor laser. By varying the laser design and the biasing conditions, frequency- and amplitude-modulated combs can be generated on demand. Second, based on their identifed particular temporal characteristics, a novel technique to determine the sensitivity of semiconductor laser frequency combs to optical feedback, is presented. Results suggest, that amplitude-modulated semiconductor laser frequency combs are less sensitive to optical feedback than frequency-modulated semiconductor laser frequency combs. The developed insights are expected to elevate semiconductor laser frequency combs in current and future integrated photonic circuits in optical communications, where unavoidable optical feedback from downstream active and passive components deteriorates comb stability.
Typ des Eintrags: | Dissertation | ||||
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Erschienen: | 2022 | ||||
Autor(en): | Auth, Dominik Matthias | ||||
Art des Eintrags: | Erstveröffentlichung | ||||
Titel: | Frequency- and amplitude- modulated semiconductor laser frequency combs | ||||
Sprache: | Englisch | ||||
Referenten: | Breuer, PD Dr. Stefan ; Elsäßer, Prof. Dr. Wolfgang | ||||
Publikationsjahr: | 2022 | ||||
Ort: | Darmstadt | ||||
Kollation: | viii, 180 Seiten | ||||
Datum der mündlichen Prüfung: | 13 Dezember 2021 | ||||
DOI: | 10.26083/tuprints-00021668 | ||||
URL / URN: | https://tuprints.ulb.tu-darmstadt.de/21668 | ||||
Kurzbeschreibung (Abstract): | Chip-scale coherent semiconductor light sources generating optical frequency combs currently revolutionize mid-infrared on-chip spectroscopy, near-infrared optical communications and nonlinear microscopy. Their key advantages is the efficient generation of narrow and equidistant spectral lines or laser modes with a fixed phase relationship across a broadband spectral region. An attractive realization of such combs is based on nanostructured semiconductor lasers with semiconductor quantum dots forming their active region. In this thesis, frst, the formation of two types of optical frequency combs in a semiconductor quantum dot laser is presented: in-phase synchronization of the intermode beatings, leading to optical pulses, and the splay-phase synchronization, leading to quasi continuous wave optical output. Both states can be generated on demand in a single semiconductor laser. By varying the laser design and the biasing conditions, frequency- and amplitude-modulated combs can be generated on demand. Second, based on their identifed particular temporal characteristics, a novel technique to determine the sensitivity of semiconductor laser frequency combs to optical feedback, is presented. Results suggest, that amplitude-modulated semiconductor laser frequency combs are less sensitive to optical feedback than frequency-modulated semiconductor laser frequency combs. The developed insights are expected to elevate semiconductor laser frequency combs in current and future integrated photonic circuits in optical communications, where unavoidable optical feedback from downstream active and passive components deteriorates comb stability. |
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Alternatives oder übersetztes Abstract: |
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Status: | Verlagsversion | ||||
URN: | urn:nbn:de:tuda-tuprints-216687 | ||||
Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik | ||||
Fachbereich(e)/-gebiet(e): | 05 Fachbereich Physik 05 Fachbereich Physik > Institut für Angewandte Physik 05 Fachbereich Physik > Institut für Angewandte Physik > Halbleiter Optik |
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Hinterlegungsdatum: | 22 Aug 2022 11:14 | ||||
Letzte Änderung: | 14 Dez 2022 18:39 | ||||
PPN: | 498498956 | ||||
Referenten: | Breuer, PD Dr. Stefan ; Elsäßer, Prof. Dr. Wolfgang | ||||
Datum der mündlichen Prüfung / Verteidigung / mdl. Prüfung: | 13 Dezember 2021 | ||||
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Suche nach Titel in: | TUfind oder in Google |
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