{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T12:14:30Z","timestamp":1785413670035,"version":"3.56.0"},"reference-count":27,"publisher":"Optica Publishing Group","issue":"13","license":[{"start":{"date-parts":[[2026,6,24]],"date-time":"2026-06-24T00:00:00Z","timestamp":1782259200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v2#VOR"},{"start":{"date-parts":[[2026,6,24]],"date-time":"2026-06-24T00:00:00Z","timestamp":1782259200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/opg.optica.org\/policies\/opg-tdm-policy.json"}],"funder":[{"DOI":"10.13039\/501100010428","name":"Innovation and Technology\n\t\t\t\t\t\tFund","doi-asserted-by":"crossref","award":["ITS\/201\/19FP"],"award-info":[{"award-number":["ITS\/201\/19FP"]}],"id":[{"id":"10.13039\/501100010428","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Opt. Lett."],"published-print":{"date-parts":[[2026,7,1]]},"abstract":"<jats:p>\n                    Monolithic integration of InP quantum dot (QD) lasers on silicon is\n\t\t\t\t\tessential for on-chip quantum technologies and biophotonics. We\n\t\t\t\t\tdemonstrate 780-nm InP\/GaAsP QD lasers monolithically grown on (001)\n\t\t\t\t\tSi with an improved characteristic temperature (T\n                    <jats:sub>0<\/jats:sub>\n                    ) of\n\t\t\t\t\t125\u2009K in the 20\u201350\u2009\u00b0C range. By increasing the active-region stacking\n\t\t\t\t\tto five layers, the threshold current density was reduced to\n\t\t\t\t\t0.86\u2009kA\/cm\n                    <jats:sup>2<\/jats:sup>\n                    with a thermal wavelength shift of 0.25\u2009nm\/\u00b0C.\n\t\t\t\t\tComparative analysis with 3-layer counterparts on Si and devices on\n\t\t\t\t\tGaAs substrates indicates that the optimized 5-layer structure\n\t\t\t\t\teffectively enhances modal gain and consequently the thermal stability\n\t\t\t\t\tof Si-based near-infrared light sources. This work suggests that\n\t\t\t\t\tactive-layer stacking is a feasible strategy for improving the thermal\n\t\t\t\t\tcharacteristics of InP QD lasers on Si.\n                  <\/jats:p>","DOI":"10.1364\/ol.604816","type":"journal-article","created":{"date-parts":[[2026,6,15]],"date-time":"2026-06-15T11:00:10Z","timestamp":1781521210000},"page":"3641","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Multi-stack InP\/GaAsP quantum dot lasers on Si with high characteristic temperature"],"prefix":"10.1364","volume":"51","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7248-3687","authenticated-orcid":true,"given":"Wen","family":"Gu","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00q4vv597","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Boqun","family":"Zhao","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00q4vv597","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiangquan","family":"Liu","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00q4vv597","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7713-1928","authenticated-orcid":true,"given":"Kei May","family":"Lau","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00q4vv597","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2026,6,24]]},"reference":[{"key":"ol-51-13-3641-R1","doi-asserted-by":"publisher","first-page":"511","DOI":"10.1038\/nphoton.2010.167","type":"journal-article","volume":"4","author":"Liang","year":"2010","journal-title":"Nat. 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All rights, including\n\t\t\t\t\tfor text and data mining (TDM), Artificial Intelligence (AI) training,\n\t\t\t\t\tand similar technologies, are reserved.","name":"copyright","label":"Copyright"}]}}