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dc.contributor.authorPourhashemi, A.
dc.contributor.authorFarrell, R.M.
dc.contributor.authorCohen, D.A.
dc.contributor.authorBecerra, D.L.
dc.contributor.authorDenBaars, S. P.
dc.contributor.authorNakamura, S.
dc.date.accessioned2017-05-15T10:35:06Z
dc.date.available2017-05-15T10:35:06Z
dc.date.issued2016-10-11
dc.identifier.citationPourhashemi A, Farrell RM, Cohen DA, Becerra DL, DenBaars SP, et al. (2016) CW operation of high-power blue laser diodes with polished facets on semi-polar ( 20 2 ¯ 1 ¯ ) GaN substrates . Electronics Letters 52: 2003–2005. Available: http://dx.doi.org/10.1049/el.2016.3055.
dc.identifier.issn0013-5194
dc.identifier.issn1350-911X
dc.identifier.doi10.1049/el.2016.3055
dc.identifier.urihttp://hdl.handle.net/10754/623531
dc.description.abstractContinuous wave (CW) operation of high-power blue laser diodes (LDs) with polished facets on semi-polar (202̅1̅) gallium nitride (GaN) substrates is demonstrated. Ridge waveguide LDs were fabricated using indium GaN waveguiding layers and GaN cladding layers. At a lasing wavelength of 452 nm, the peak two-facet CW output power from an LD with uncoated facets was 1.71 W at a current of 3 A, corresponding to an optical power density of 32.04 MW/cm2 on each facet. The dependence of output power on current did not change with repeated CW measurements, indicating that the polished facets did not degrade under high-power CW operation. These results show that polished facets are a viable alternative to cleaved or etched facets for high-power CW semi-polar LDs.
dc.description.sponsorshipThis work was supported by the Solid State Lighting and Energy Electronics Center (SSLEEC) and the KACST-KAUST-UCSB Solid State Lighting Program (SSLP). A portion of this work was done in the UCSB nanofabrication facility, part of the NSF NNIN network (ECS-0335765), as well as the UCSB MRL, which is supported by the NSF MRSEC programme (DMR-1121053).
dc.publisherInstitution of Engineering and Technology (IET)
dc.subjectpolishing
dc.subjectgallium compounds
dc.subjectIII-V semiconductors
dc.subjectsemiconductor lasers
dc.subjectridge waveguides
dc.subjectoptical fabrication
dc.subjectwaveguide lasers
dc.subjectlaser beams
dc.titleCW operation of high-power blue laser diodes with polished facets on semi-polar ( 20 2 ¯ 1 ¯ ) GaN substrates
dc.typeArticle
dc.identifier.journalElectronics Letters
dc.contributor.institutionUniversity of California, USA
dc.date.published-online2016-10-11
dc.date.published-print2016-11-24


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