{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T13:03:58Z","timestamp":1785416638160,"version":"3.56.0"},"reference-count":24,"publisher":"Optica Publishing Group","issue":"15","license":[{"start":{"date-parts":[[2026,7,24]],"date-time":"2026-07-24T00:00:00Z","timestamp":1784851200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v2#VOR"},{"start":{"date-parts":[[2026,7,24]],"date-time":"2026-07-24T00:00:00Z","timestamp":1784851200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/opg.optica.org\/policies\/opg-tdm-policy.json"}],"funder":[{"name":"National Science and Technology Council","award":["NSTC 112-2636-E-194-001"],"award-info":[{"award-number":["NSTC 112-2636-E-194-001"]}],"id":[{"id":"https:\/\/ror.org\/02kv4zf79","id-type":"ROR","asserted-by":"publisher"}]},{"name":"National Science and Technology Council","award":["NSTC 113-2636-E-194-001"],"award-info":[{"award-number":["NSTC 113-2636-E-194-001"]}],"id":[{"id":"https:\/\/ror.org\/02kv4zf79","id-type":"ROR","asserted-by":"publisher"}]},{"name":"National Science and Technology Council","award":["NSTC 114-2811-E-A49-540"],"award-info":[{"award-number":["NSTC 114-2811-E-A49-540"]}],"id":[{"id":"https:\/\/ror.org\/02kv4zf79","id-type":"ROR","asserted-by":"publisher"}]},{"name":"National Science and Technology Council","award":["NSTC 114-2628-E-A49-021"],"award-info":[{"award-number":["NSTC 114-2628-E-A49-021"]}],"id":[{"id":"https:\/\/ror.org\/02kv4zf79","id-type":"ROR","asserted-by":"publisher"}]},{"name":"National Science and Technology Council","award":["NSTC 114-2923-E-A49-017-MY2"],"award-info":[{"award-number":["NSTC 114-2923-E-A49-017-MY2"]}],"id":[{"id":"https:\/\/ror.org\/02kv4zf79","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Taiwan Semiconductor Research Institute","award":["JDP 113-Y1-044"],"award-info":[{"award-number":["JDP 113-Y1-044"]}]},{"name":"Taiwan Semiconductor Research Institute","award":["JDP114-Y1-048"],"award-info":[{"award-number":["JDP114-Y1-048"]}]}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Opt. Lett."],"published-print":{"date-parts":[[2026,8,1]]},"abstract":"<jats:p>\n                    GeSn alloys are promising for Si-based mid-infrared (MIR) lasers owing to their direct bandgap. This study compares the performance of optically pumped ridge waveguide GeSn MIR lasers fabricated without (Device A: Si\/Ge\/GeSn ~10%) and with (Device B: Si\/Ge\/GeSn 5%\/GeSn ~10.41%) a GeSn buffer. At 77\u2009K, Device A exhibited a lower threshold (454.77\u2009kW\/cm\n                    <jats:sup>2<\/jats:sup>\n                    ) and higher maximum operating temperature (110\u2009K) than Device B (470.21\u2009kW\/cm\n                    <jats:sup>2<\/jats:sup>\n                    , 100\u2009K). Overall, optical confinement, carrier transport, and thermal effects critically influence performance beyond defect reduction. This study provides design insights for GeSn lasers, facilitating the development of efficient, integrated Si-photonics MIR light sources.\n                  <\/jats:p>","DOI":"10.1364\/ol.607708","type":"journal-article","created":{"date-parts":[[2026,7,13]],"date-time":"2026-07-13T19:00:09Z","timestamp":1783969209000},"page":"4296","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Performance investigation of optically pumped ridge waveguide GeSn lasers: role of GeSn buffer in mid-infrared Si photonics"],"prefix":"10.1364","volume":"51","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1607-199X","authenticated-orcid":true,"given":"Radhika","family":"Bansal","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00se2k293","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yue-Tong","family":"Jheng","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00se2k293","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3739-5451","authenticated-orcid":true,"given":"Guo-En","family":"Chang","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00se2k293","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2026,7,24]]},"reference":[{"key":"ol-51-15-4296-R1","doi-asserted-by":"publisher","first-page":"1678","DOI":"10.1109\/JSTQE.2006.883151","type":"journal-article","volume":"12","author":"Soref","year":"2006","journal-title":"IEEE J. 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All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.","name":"copyright","label":"Copyright"}]}}