Carroll, Ray and O'Driscoll, I. and Hegarty, S. P. and Huyet, G. and Houlihan, John and Viktorov, Evgeny A. and Mandel, P. (2006) Feedback induced instabilities in a quantum dot semiconductor laser. Optics Express, 14 (22). pp. 10831-10837.
Full text not available from this repository. (Request a copy)Abstract
We analyse the properties of GaAs based quantum dot semiconductor lasers emitting near 1310 nm. The line-width enhancement factor is shown to depend strongly on device temperature, ranging from 1.5 at 20 degrees C to 5 at 50 degrees C. With optical feedback from a distant reflector, devices remained stable at 20 degrees C but displayed a range of instabilities at 50 degrees C, including irregular power drop - outs and periodic pulsations, before entering a chaotic regime. Such dynamical features are unique to quantum dot lasers - quantum well lasers are significantly more unstable under optical feedback making such a clear route to chaos difficult to observe. (c) 2006 Optical Society of America.
Item Type: | Article |
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Additional Information: | ISI Document Delivery No.: 109QV English Article 1094-4087 |
Uncontrolled Keywords: | Linewidth enhancement factor optical feedback diodes sensitivity cavity gain |
Departments or Groups: | |
Divisions: | School of Science > Department of Computing, Maths and Physics |
Depositing User: | John Houlihan |
Date Deposited: | 14 Feb 2007 10:40 |
Last Modified: | 22 Aug 2016 10:25 |
URI: | http://repository-testing.wit.ie/id/eprint/17 |
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