Numerical Study of the Single Mode Stability of Quantum Well and Quantum Dot DFB Laser Diodes Under External Optical Feedback
We numerically analysed the single mode stability of of multi quantum well and quantum dot DFB laser diodes in the presence of external optical feedback. Laser diodes which operate in a stable single mode in the absence of feedback were found to sometimes become multimode for external feedback level...
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| Format: | Article |
| Language: | English |
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IEEE
2023-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/10138466/ |
| _version_ | 1827927965892083712 |
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| author | G. Morthier |
| author_facet | G. Morthier |
| author_sort | G. Morthier |
| collection | DOAJ |
| description | We numerically analysed the single mode stability of of multi quantum well and quantum dot DFB laser diodes in the presence of external optical feedback. Laser diodes which operate in a stable single mode in the absence of feedback were found to sometimes become multimode for external feedback levels below −30 dB. This is even the case for lasers with zero linewidth enhancement factor, even though such lasers are sometimes touted as feedback insensitive. The behavior depends strongly on the phase of the external reflection, as well as on the specific DFB laser structure. |
| first_indexed | 2024-03-13T06:00:41Z |
| format | Article |
| id | doaj.art-f483730ce42f4258a8473b900fc6738e |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-03-13T06:00:41Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-f483730ce42f4258a8473b900fc6738e2023-06-12T23:00:23ZengIEEEIEEE Photonics Journal1943-06552023-01-011531410.1109/JPHOT.2023.328151310138466Numerical Study of the Single Mode Stability of Quantum Well and Quantum Dot DFB Laser Diodes Under External Optical FeedbackG. Morthier0https://orcid.org/0000-0003-1819-6489Photonics Research Group, Department of Information Technology, Ghent University - imec, Ghent, BelgiumWe numerically analysed the single mode stability of of multi quantum well and quantum dot DFB laser diodes in the presence of external optical feedback. Laser diodes which operate in a stable single mode in the absence of feedback were found to sometimes become multimode for external feedback levels below −30 dB. This is even the case for lasers with zero linewidth enhancement factor, even though such lasers are sometimes touted as feedback insensitive. The behavior depends strongly on the phase of the external reflection, as well as on the specific DFB laser structure.https://ieeexplore.ieee.org/document/10138466/DFB laser diodesingle mode stabilityfeedback sensitivityquantum dotquantum well |
| spellingShingle | G. Morthier Numerical Study of the Single Mode Stability of Quantum Well and Quantum Dot DFB Laser Diodes Under External Optical Feedback IEEE Photonics Journal DFB laser diode single mode stability feedback sensitivity quantum dot quantum well |
| title | Numerical Study of the Single Mode Stability of Quantum Well and Quantum Dot DFB Laser Diodes Under External Optical Feedback |
| title_full | Numerical Study of the Single Mode Stability of Quantum Well and Quantum Dot DFB Laser Diodes Under External Optical Feedback |
| title_fullStr | Numerical Study of the Single Mode Stability of Quantum Well and Quantum Dot DFB Laser Diodes Under External Optical Feedback |
| title_full_unstemmed | Numerical Study of the Single Mode Stability of Quantum Well and Quantum Dot DFB Laser Diodes Under External Optical Feedback |
| title_short | Numerical Study of the Single Mode Stability of Quantum Well and Quantum Dot DFB Laser Diodes Under External Optical Feedback |
| title_sort | numerical study of the single mode stability of quantum well and quantum dot dfb laser diodes under external optical feedback |
| topic | DFB laser diode single mode stability feedback sensitivity quantum dot quantum well |
| url | https://ieeexplore.ieee.org/document/10138466/ |
| work_keys_str_mv | AT gmorthier numericalstudyofthesinglemodestabilityofquantumwellandquantumdotdfblaserdiodesunderexternalopticalfeedback |