By Topic

Independence of absorption coefficient-linewidth product to material system for multiple quantum wells with excitons from 850 nm to 1064 nm

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
K. W. Goossen ; AT&T Bell Labs., Holmdel, NJ, USA ; M. B. Santos ; J. E. Cunningham ; W. Y. Jan

The authors have measured the absorption coefficient ( alpha ) and linewidth ( Delta ) of the excitons of GaAs/AlGaAs and strain-balanced InGaAs/GaAsP multiple-quantum-well (MQW) modulators with wavelengths from 850 to 1064 nm. They find that alpha decreases and Delta increases as wavelength increases, but their product, and thus the integrated absorption coefficient, remains roughly constant. Thus, the reduced performance observed for longer wavelength modulators is due to exciton broadening.<>

Published in:

IEEE Photonics Technology Letters  (Volume:5 ,  Issue: 12 )