Elimination of catastrophic optical mirror damage in continuous-wave high-power laser diodes using multi-section waveguides

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buir.contributor.authorEbadi, Kaveh
buir.contributor.authorSünnetçioğlu, Ali Kaan
buir.contributor.authorGündoğdu, Sinan
buir.contributor.authorŞengül, Serdar
buir.contributor.authorDemir, Abdullah
buir.contributor.orcidSünnetçioğlu, Ali Kaan|0000-0002-7183-7321
buir.contributor.orcidEbadi, Kaveh|0000-0002-1559-6199
buir.contributor.orcidDemir, Abdullah|0000-0003-4678-0084
dc.citation.epage31549en_US
dc.citation.issueNumber18en_US
dc.citation.spage31539en_US
dc.citation.volumeNumber30en_US
dc.contributor.authorLiu, Yuxian
dc.contributor.authorEbadi, Kaveh
dc.contributor.authorSünnetçioğlu, Ali Kaan
dc.contributor.authorGündoğdu, Sinan
dc.contributor.authorŞengül, Serdar
dc.contributor.authorZhao, Yuliang
dc.contributor.authorLan, Yu
dc.contributor.authorZhao, Yongming
dc.contributor.authorYang, Guowen
dc.contributor.authorDemir, Abdullah
dc.date.accessioned2023-02-28T07:06:14Z
dc.date.available2023-02-28T07:06:14Z
dc.date.issued2022-08-29
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractOne of the persistent obstacles for high-power laser diodes (LDs) has been the catastrophic optical mirror damage (COMD), which limits the operating power level and lifetime of commercial high-power LDs. The output facet of LD reaches a critical temperature resulting in COMD, which is an irreversible device failure. Here, we fabricate multi-section LDs by tailoring the waveguide structure along the cavity that separates the output facet from the heat-generating lasing region. In this method, the LD waveguide is divided into electrically isolated laser and window sections along the cavity. The laser section is pumped at a high current to achieve high output power, and the window is biased at a low current with negligible heat generation. This design restricts the thermal impact of the laser section on the facet, and the window section allows lossless transport of the laser to the output facet. The lasers were operated continuous-wave up to the maximum achievable power. While standard LDs show COMD failures, the multi-section waveguide LDs are COMD-free. Our technique and results provide a pathway for high-reliability LDs, which would find diverse applications in semiconductor lasers. © 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.en_US
dc.identifier.doi10.1364/OE.461866en_US
dc.identifier.issn10944087
dc.identifier.urihttp://hdl.handle.net/11693/111876
dc.language.isoEnglishen_US
dc.publisherOptica Publishing Group (formerly OSA)en_US
dc.relation.isversionofhttps://dx.doi.org/10.1364/OE.461866en_US
dc.source.titleOptics Expressen_US
dc.subjectContinuous wave lasersen_US
dc.subjectHeat generationen_US
dc.subjectHigh power lasersen_US
dc.subjectLaser mirrorsen_US
dc.subjectPumping (laser)en_US
dc.subjectWaveguidesen_US
dc.titleElimination of catastrophic optical mirror damage in continuous-wave high-power laser diodes using multi-section waveguidesen_US
dc.typeArticleen_US

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Institute of Materials Science and Nanotechnology (UNAM)