Albeladi, Fwoziah;
Gillgrass, Sara-Jayne;
Nabialek, Josie;
Mishra, Pawan;
Forrest, Richard;
Albiladi, Tahani;
Allford, Craig Philip;
... Smowton, Peter M; + view all
(2023)
Design and Characterisation of Multi-Mode Interference Reflector Lasers for Integrated Photonics.
Journal of Physics D: Applied Physics
, 56
(38)
, Article 384001. 10.1088/1361-6463/acdb80.
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Abstract
InAs quantum dot ridge waveguide lasers comprising single-port multi-mode-interference-reflectors (MMIR) and single-cleaved reflectors are designed, fabricated, and characterised, to demonstrate capability for optoelectronic-integrated-circuits. Simulations of an MMIR show high values of fundamental mode reflectivity ($ > 80\% )$ and good selectivity against higher order modes. Deep-etched MMIR lasers fabricated with 0.5 mm long cavities have a threshold current of 24 mA, compared to 75 mA for standard Fabry–Perot cleaved–cleaved FP-RWG lasers of the same length, both at 25 °C, and 56 mA compared to 102 mA at 55 °C. MMIR lasers exhibit stable ground state operation up to 50 °C and show promise as small footprint sources for integrated photonics.
| Type: | Article |
|---|---|
| Title: | Design and Characterisation of Multi-Mode Interference Reflector Lasers for Integrated Photonics |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1088/1361-6463/acdb80 |
| Publisher version: | https://doi.org/10.1088/1361-6463/acdb80 |
| Language: | English |
| Additional information: | Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. |
| Keywords: | QDs, photonics, integration, laser reflectors |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10172272 |
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