Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/151336
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dc.contributor.authorHeinz-Wilhelm H&x00FC;bersen_US
dc.contributor.authorHeiko Richteren_US
dc.contributor.authorRen&x00E9; Eichholzen_US
dc.contributor.authorMartin Wienolden_US
dc.contributor.authorKlaus Biermannen_US
dc.contributor.authorLutz Schrottkeen_US
dc.contributor.authorHolger T. Grahnen_US
dc.date.accessioned2013en_US
dc.date.accessioned2020-04-06T07:14:40Z-
dc.date.available2020-04-06T07:14:40Z-
dc.date.issued2017en_US
dc.identifier.other10.1109/JSTQE.2017.2684078en_US
dc.identifier.urihttp://localhost/handle/Hannan/151336-
dc.description.abstractWe study the influence of optical feedback on the frequency stability of terahertz (THz) quantum-cascade lasers (QCLs) by high-resolution heterodyne spectroscopy. The emission from two pairs of QCLs operating either at 3.4 or at 4.7 THz is mixed in a Schottky diode and the resulting difference frequency in the gigahertz range is measured. The high spectral resolution of less than 1 MHz and a time resolution of 1 ms enable us to investigate feedback-induced frequency instabilities on scales that are relevant for spectroscopy. Frequency changes of up to 70 MHz are observed with an optical feedback of only 3 &x00D7; 10<sup>-5</sup> of the output power of the QCL.en_US
dc.format.extent1,en_US
dc.format.extent6en_US
dc.publisherIEEEen_US
dc.relation.haspart7880573.pdfen_US
dc.titleHeterodyne Spectroscopy of Frequency Instabilities in Terahertz Quantum-Cascade Lasers Induced by Optical Feedbacken_US
dc.typeArticleen_US
dc.journal.volume23en_US
dc.journal.issue4en_US
Appears in Collections:2017

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7880573.pdf883.78 kBAdobe PDF
Full metadata record
DC FieldValueLanguage
dc.contributor.authorHeinz-Wilhelm H&x00FC;bersen_US
dc.contributor.authorHeiko Richteren_US
dc.contributor.authorRen&x00E9; Eichholzen_US
dc.contributor.authorMartin Wienolden_US
dc.contributor.authorKlaus Biermannen_US
dc.contributor.authorLutz Schrottkeen_US
dc.contributor.authorHolger T. Grahnen_US
dc.date.accessioned2013en_US
dc.date.accessioned2020-04-06T07:14:40Z-
dc.date.available2020-04-06T07:14:40Z-
dc.date.issued2017en_US
dc.identifier.other10.1109/JSTQE.2017.2684078en_US
dc.identifier.urihttp://localhost/handle/Hannan/151336-
dc.description.abstractWe study the influence of optical feedback on the frequency stability of terahertz (THz) quantum-cascade lasers (QCLs) by high-resolution heterodyne spectroscopy. The emission from two pairs of QCLs operating either at 3.4 or at 4.7 THz is mixed in a Schottky diode and the resulting difference frequency in the gigahertz range is measured. The high spectral resolution of less than 1 MHz and a time resolution of 1 ms enable us to investigate feedback-induced frequency instabilities on scales that are relevant for spectroscopy. Frequency changes of up to 70 MHz are observed with an optical feedback of only 3 &x00D7; 10<sup>-5</sup> of the output power of the QCL.en_US
dc.format.extent1,en_US
dc.format.extent6en_US
dc.publisherIEEEen_US
dc.relation.haspart7880573.pdfen_US
dc.titleHeterodyne Spectroscopy of Frequency Instabilities in Terahertz Quantum-Cascade Lasers Induced by Optical Feedbacken_US
dc.typeArticleen_US
dc.journal.volume23en_US
dc.journal.issue4en_US
Appears in Collections:2017

Files in This Item:
File SizeFormat 
7880573.pdf883.78 kBAdobe PDF
Full metadata record
DC FieldValueLanguage
dc.contributor.authorHeinz-Wilhelm H&x00FC;bersen_US
dc.contributor.authorHeiko Richteren_US
dc.contributor.authorRen&x00E9; Eichholzen_US
dc.contributor.authorMartin Wienolden_US
dc.contributor.authorKlaus Biermannen_US
dc.contributor.authorLutz Schrottkeen_US
dc.contributor.authorHolger T. Grahnen_US
dc.date.accessioned2013en_US
dc.date.accessioned2020-04-06T07:14:40Z-
dc.date.available2020-04-06T07:14:40Z-
dc.date.issued2017en_US
dc.identifier.other10.1109/JSTQE.2017.2684078en_US
dc.identifier.urihttp://localhost/handle/Hannan/151336-
dc.description.abstractWe study the influence of optical feedback on the frequency stability of terahertz (THz) quantum-cascade lasers (QCLs) by high-resolution heterodyne spectroscopy. The emission from two pairs of QCLs operating either at 3.4 or at 4.7 THz is mixed in a Schottky diode and the resulting difference frequency in the gigahertz range is measured. The high spectral resolution of less than 1 MHz and a time resolution of 1 ms enable us to investigate feedback-induced frequency instabilities on scales that are relevant for spectroscopy. Frequency changes of up to 70 MHz are observed with an optical feedback of only 3 &x00D7; 10<sup>-5</sup> of the output power of the QCL.en_US
dc.format.extent1,en_US
dc.format.extent6en_US
dc.publisherIEEEen_US
dc.relation.haspart7880573.pdfen_US
dc.titleHeterodyne Spectroscopy of Frequency Instabilities in Terahertz Quantum-Cascade Lasers Induced by Optical Feedbacken_US
dc.typeArticleen_US
dc.journal.volume23en_US
dc.journal.issue4en_US
Appears in Collections:2017

Files in This Item:
File SizeFormat 
7880573.pdf883.78 kBAdobe PDF