By Topic

Lateral current injection lasers: underlying mechanisms and design for improved high-power efficiency

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

3 Author(s)
E. H. Sargent ; Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada ; G. Tan ; J. M. Xu

The lateral current injection (LCI) laser-a promising technology for enabling optoelectronic integrated circuits and photonic devices with novel functionalities-is studied by comparison with conventional vertical injection devices. Fully self-consistent two-dimensional (2-D) simulations of lateral and vertical lasers reveal physical effects unique to the lateral injection class of devices. We find that (1) strong lateral carrier confinement is critical to efficient LCI laser operation, even if the active region is wide, in view of ambipolar effects, (2) current paths in parallel with the active region, even if they consist of high-bandgap intrinsic material, may nevertheless admit significant parasitic leakage even at moderate injection levels, and (3) a straightforward, but powerful, solution to the problem of premature roll-off in lasing efficiency may be achieved via heavy contact doping without significantly increasing modal free-carrier absorption

Published in:

Journal of Lightwave Technology  (Volume:16 ,  Issue: 10 )