Accession Number:

ADA127238

Title:

Prediction of Transverse-Mode Selection in Double Heterojunction Lasers by An Amipolar Excess Carrier Diffusion Solution

Descriptive Note:

Journal article

Corporate Author:

SOUTHERN METHODIST UNIV DALLAS TX

Report Date:

1983-02-01

Pagination or Media Count:

11.0

Abstract:

Transverse-mode selection is characterized for GaAsAlGaAs double heterojunction lasers from optical field and elcetronhole interaction. The electronhole distribution determined from a solution of the ambipolar diffusion equation provides the necessary information about gainmode coupling to predict the current at threshold. Lasing power out versus current solutions provide information about internal differential quantum efficiency. Theory is matched to experiment for a multimode laser with one heterojunction having a very small index step. It is found that the lasers characteristics over a temperature and current range are predicted by adjusting the active-layer refractive index as determined from far-field measurements.

Subject Categories:

  • Lasers and Masers
  • Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE