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Continuous-wave operation of vertically emitting ring interband cascade lasers at room temperature
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dc.contributor.author | Knoetig, Hedwig | |
dc.contributor.author | Hinkov, Borislav | |
dc.contributor.author | Weih, Robert | |
dc.contributor.author | Hoefling, Sven | |
dc.contributor.author | Koeth, Johannes | |
dc.contributor.author | Strasser, Gottfried | |
dc.date.accessioned | 2020-04-20T11:30:00Z | |
dc.date.available | 2020-04-20T11:30:00Z | |
dc.date.issued | 2020-03-30 | |
dc.identifier | 267453464 | |
dc.identifier | 75106527-5b53-45f7-a4bb-64359bf87460 | |
dc.identifier | 000523433400001 | |
dc.identifier | 85082738712 | |
dc.identifier.citation | Knoetig , H , Hinkov , B , Weih , R , Hoefling , S , Koeth , J & Strasser , G 2020 , ' Continuous-wave operation of vertically emitting ring interband cascade lasers at room temperature ' , Applied Physics Letters , vol. 116 , no. 13 , 131101 . https://doi.org/10.1063/1.5139649 | en |
dc.identifier.issn | 0003-6951 | |
dc.identifier.uri | https://hdl.handle.net/10023/19826 | |
dc.description | Funding: The authors are grateful for financial support received under Austrian Research Promotion Agency (FFG) project No. 1516332 (ATMO-SENSE). | en |
dc.description.abstract | We present vertical light emission in continuous-wave mode from an interband cascade laser (ICL) at a record temperature of up to 38 °C. These results pave the way toward a more efficient and compact integration of this technology in mobile spectroscopic applications. Our approach employs ring cavity ICLs that are mounted epi-side down for efficient heat extraction from the devices. The vertical single-mode emission relies on a metallized second-order distributed-feedback grating designed for an emission wavelength of 3.8 μm. A single lateral mode operation is favored by a narrow waveguide width of 4 μm. Optical output powers of more than 6 mW were measured at 20 °C for rings with a diameter of ∼800 μm. At this temperature, the threshold current-density amounted to 0.60 kA/cm2 and the device showed continuous current and temperature tuning rates of 0.06 nm/mA and 0.37 nm/K, respectively. | |
dc.format.extent | 5 | |
dc.format.extent | 1961348 | |
dc.language.iso | eng | |
dc.relation.ispartof | Applied Physics Letters | en |
dc.subject | QC Physics | en |
dc.subject | TK Electrical engineering. Electronics Nuclear engineering | en |
dc.subject | T-NDAS | en |
dc.subject.lcc | QC | en |
dc.subject.lcc | TK | en |
dc.title | Continuous-wave operation of vertically emitting ring interband cascade lasers at room temperature | en |
dc.type | Journal article | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.contributor.institution | University of St Andrews. Condensed Matter Physics | en |
dc.identifier.doi | 10.1063/1.5139649 | |
dc.description.status | Peer reviewed | en |
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