Pusino, V. , Strain, M. J. and Sorel, M. (2014) Passive mode-locking in semiconductor lasers with saturable absorbers bandgap shifted through quantum well intermixing. Photonics Research, 2(6), pp. 186-189. (doi: 10.1364/PRJ.2.000186)
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Abstract
Passive mode-locking in semiconductor lasers in a Fabry–Perot configuration with a bandgap blueshift applied to the saturable absorber (SA) section has been experimentally characterized. For the first time a fully post-growth technique, quantum well intermixing, was adopted to modify the material bandgap in the SA section. The measurements showed not only an expected narrowing of the pulse width but also a significant expansion of the range of bias conditions generating a stable train of optical pulses. Moreover, the pulses from lasers with bandgap shifted absorbers presented reduced chirp and increased peak power with respect to the nonshifted case.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Sorel, Professor Marc and Pusino, Dr Vincenzo and Strain, Dr Michael |
| Authors: | Pusino, V., Strain, M. J., and Sorel, M. |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| Journal Name: | Photonics Research |
| Publisher: | Optical Society of America |
| ISSN: | 2327-9125 |
| ISSN (Online): | 2327-9125 |
| Copyright Holders: | Copyright © 2014 Chinese Laser Press |
| First Published: | First published in Photonics Research 2(6):186-189 |
| Publisher Policy: | Reproduced in accordance with the copyright policy of the publisher |
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