Abstract

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.

[IEEE ]

PDF Article

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription