Thomson, John Duncan, Summers, Huw David, Smowton, Peter Michael ORCID: https://orcid.org/0000-0002-9105-4842, Herrmann, E., Blood, Peter and Hopkinson, M.
2000.
Temperature dependence of the wavelength of quantum dot lasers.
Presented at: 2000 IEEE 17th International Semiconductor Laser Conference,
Monterey, CA, USA,
25 - 28 September 2000.
2000 IEEE 17th International Semiconductor Laser Conference, 2000: Conference Digest.
Los Alamitos, CA:
IEEE,
pp. 135-136.
10.1109/ISLC.2000.882324
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Abstract
We have studied the properties of quantum dot lasers comprising a single layer of InGaAs dots set in a single GaAs quantum well 100 A wide in a waveguide core region of AlGaAs with cladding layers of AlGaAs. Measurements have been made of the optical absorption, optical mode loss and gain spectra as a function of temperature by single pass technique using a device with a segmented contact. We have made detailed studies of the gain spectra as a function of temperature which have enabled us to identify the origins of this temperature insensitivity and to infer information regarding the form of the broadened distribution of dot states.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Physics and Astronomy |
| Subjects: | Q Science > QC Physics |
| Publisher: | IEEE |
| ISBN: | 0780362594 |
| Last Modified: | 20 Oct 2022 09:11 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/30924 |
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