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DC Field | Value | Language |
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dc.citation.startPage | 38801 | - |
dc.citation.title | SCIENTIFIC REPORTS | - |
dc.citation.volume | 6 | - |
dc.contributor.author | Park, Gyeong Cheol | - |
dc.contributor.author | Xue, Weiqi | - |
dc.contributor.author | Piels, Molly | - |
dc.contributor.author | Zibar, Darko | - |
dc.contributor.author | Mork, Jesper | - |
dc.contributor.author | Semenova, Elizaveta | - |
dc.contributor.author | Chung, Il-Sug | - |
dc.date.accessioned | 2023-12-21T22:48:20Z | - |
dc.date.available | 2023-12-21T22:48:20Z | - |
dc.date.created | 2018-02-23 | - |
dc.date.issued | 2016-12 | - |
dc.description.abstract | For on-chip interconnects, an ideal light source should have an ultralow energy consumption per bandwidth (operating en-ergy) as well as sufficient output power for error-free detection. Nanocavity lasers have been considered the most ideal for smaller operating energy. However, they have a challenge in obtaining a sufficient output power. Here, as an alternative, we propose an ultrahigh-speed microcavity laser structure, based on a vertical cavity with a high-contrast grating (HCG) mirror for transverse magnetic (TM) polarisation. By using the TM HCG, a very small mode volume and an un-pumped compact optical feedback structure can be realised, which together tailor the frequency response function for achieving a very high speed at low injection currents. Furthermore, light can be emitted laterally into a Si waveguide. From an 1.54-mu m optically-pumped laser, a 3-dB frequency of 27 GHz was obtained at a pumping level corresponding to sub-mA. Using measured 3-dB frequen-cies and calculated equivalent currents, the modulation current efficiency factor (MCEF) is estimated to be 42.1 GHz/mA1/2, which is superior among microcavity lasers. This shows a high potential for a very high speed at low injection currents or avery small heat generation at high bitrates, which are highly desirable for both on-chip and off-chip applications. | - |
dc.identifier.bibliographicCitation | SCIENTIFIC REPORTS, v.6, pp.38801 | - |
dc.identifier.doi | 10.1038/srep38801 | - |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.scopusid | 2-s2.0-85006054839 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/23708 | - |
dc.identifier.url | https://www.nature.com/articles/srep38801 | - |
dc.identifier.wosid | 000389569800001 | - |
dc.language | 영어 | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.title | Ultrahigh-speed Si-integrated on-chip laser with tailored dynamic characteristics | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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