Feedback Regimes of LFI Sensors: Experimental Investigations
In this article, we revisit the concept of optical feedback regimes in diode lasers and explore each regime experimentally from a somewhat unconventional point of view by relating the feedback regimes to the laser bias current and its optical feedback level. The results enable setting the operating...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/22/22/9001 |
| _version_ | 1827643651867541504 |
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| author | Karl Bertling Xiaoqiong Qi Thomas Taimre Yah Leng Lim Aleksandar D. Rakić |
| author_facet | Karl Bertling Xiaoqiong Qi Thomas Taimre Yah Leng Lim Aleksandar D. Rakić |
| author_sort | Karl Bertling |
| collection | DOAJ |
| description | In this article, we revisit the concept of optical feedback regimes in diode lasers and explore each regime experimentally from a somewhat unconventional point of view by relating the feedback regimes to the laser bias current and its optical feedback level. The results enable setting the operating conditions of the diode laser in different applications requiring operation in different feedback regimes. We experimentally explored and theoretically supported this relationship from the standard Lang and Kobayashi rate equation model for a laser diode under optical feedback. All five regimes were explored for two major types of laser diodes: inplane lasers and vertical-cavity surface emitting lasers. For both lasers, we mapped the self-mixing strength vs. drive current and feedback level, observed the differences in the shape of the self-mixing fringes between the two laser architectures and a general simulation, and monitored other parameters of the lasers with changing optical feedback. |
| first_indexed | 2024-03-09T18:00:07Z |
| format | Article |
| id | doaj.art-7764ed378ab64f00bb8ab99dcd700ca0 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T18:00:07Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-7764ed378ab64f00bb8ab99dcd700ca02023-11-24T09:59:13ZengMDPI AGSensors1424-82202022-11-012222900110.3390/s22229001Feedback Regimes of LFI Sensors: Experimental InvestigationsKarl Bertling0Xiaoqiong Qi1Thomas Taimre2Yah Leng Lim3Aleksandar D. Rakić4School of Information Technology and Electrical Engineering, The University of Queensland, Brisbane, QLD 4072, AustraliaSchool of Information Technology and Electrical Engineering, The University of Queensland, Brisbane, QLD 4072, AustraliaSchool of Mathematics and Physics, The University of Queensland, Brisbane, QLD 4072, AustraliaSchool of Information Technology and Electrical Engineering, The University of Queensland, Brisbane, QLD 4072, AustraliaSchool of Information Technology and Electrical Engineering, The University of Queensland, Brisbane, QLD 4072, AustraliaIn this article, we revisit the concept of optical feedback regimes in diode lasers and explore each regime experimentally from a somewhat unconventional point of view by relating the feedback regimes to the laser bias current and its optical feedback level. The results enable setting the operating conditions of the diode laser in different applications requiring operation in different feedback regimes. We experimentally explored and theoretically supported this relationship from the standard Lang and Kobayashi rate equation model for a laser diode under optical feedback. All five regimes were explored for two major types of laser diodes: inplane lasers and vertical-cavity surface emitting lasers. For both lasers, we mapped the self-mixing strength vs. drive current and feedback level, observed the differences in the shape of the self-mixing fringes between the two laser architectures and a general simulation, and monitored other parameters of the lasers with changing optical feedback.https://www.mdpi.com/1424-8220/22/22/9001laser feedback interferometryself-mixinglaser diode |
| spellingShingle | Karl Bertling Xiaoqiong Qi Thomas Taimre Yah Leng Lim Aleksandar D. Rakić Feedback Regimes of LFI Sensors: Experimental Investigations Sensors laser feedback interferometry self-mixing laser diode |
| title | Feedback Regimes of LFI Sensors: Experimental Investigations |
| title_full | Feedback Regimes of LFI Sensors: Experimental Investigations |
| title_fullStr | Feedback Regimes of LFI Sensors: Experimental Investigations |
| title_full_unstemmed | Feedback Regimes of LFI Sensors: Experimental Investigations |
| title_short | Feedback Regimes of LFI Sensors: Experimental Investigations |
| title_sort | feedback regimes of lfi sensors experimental investigations |
| topic | laser feedback interferometry self-mixing laser diode |
| url | https://www.mdpi.com/1424-8220/22/22/9001 |
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