DocumentCode
3788042
Title
Modulation response of V-groove quantum-wire lasers
Author
D.M. Gvozdic;A. Schlachetzki
Author_Institution
Lab. of Opt., Photonics & Quantum Electron., R. Inst. of Technol., Kista, Sweden
Volume
41
Issue
6
fYear
2005
Firstpage
842
Lastpage
847
Abstract
We analyze the modulation speed of an InGaAs-InP quantum-wire laser of a V-groove-shaped structure. The bandwidth is affected by the optical confinement /spl Gamma/, exhibiting a maximum at /spl Gamma/=0.016. The maximum bandwidth for the intrinsic device is 20 GHz as a result of a calculation based on the experimentally obtained cross section of the device and including the nonparabolicity of the conduction and valence bands. We discuss the reduction of the bandwidth of the device itself by summarily considering the influence of the roll-off time and the cavity length as well as the nonlinear gain suppression.
Keywords
"Bandwidth","Quantum well lasers","Quantum dot lasers","Optical propagation","Distributed feedback devices","Nonlinear optics","Optical modulation","Carrier confinement","Wires","Optical feedback"
Journal_Title
IEEE Journal of Quantum Electronics
Publisher
ieee
ISSN
0018-9197
Type
jour
DOI
10.1109/JQE.2005.846690
Filename
1432974
Link To Document