Le Boulbar, Emmanuel D., Jarvis, Lydia, Hayes, David ![]() ![]() ![]() ![]() ![]() |
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Abstract
In this work, the feasibility of a monolithically integrated laser and electroabsorption modulator based on the same active quantum dot epistructure is studied. The net modal gain and the absorption in the modulator were measured using the segmented contact method from 25 °C to 125 °C. The maximum of the net modal gain active region of the laser decreases from 10 cm -1 at 25 °C to 3.9 cm -1 at 125 °C. The non-optimized maximum extinction ratio of the modulator, 4.1 dB·mm -1 , is almost constant until 25 °C. The wavelengths at which the net modal gain and the change in absorption are maximum shifts with temperature by 0.04 eV.
Item Type: | Conference or Workshop Item (Paper) |
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Date Type: | Published Online |
Status: | Published |
Schools: | Physics and Astronomy |
Publisher: | IEEE |
Date of First Compliant Deposit: | 1 July 2019 |
Date of Acceptance: | 30 April 2019 |
Last Modified: | 25 Nov 2022 10:37 |
URI: | https://orca.cardiff.ac.uk/id/eprint/123860 |
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