Two-Valued Characteristics in Semiconductor Quantum Well Lasers

Due to internal optical absorption loss, which varies with carrier density in the optical confinement region, the operating characteristics can be two valued in semiconductor quantum well lasers. Particularly, there can be two lasing thresholds and two branches in the light-current characteristic. W...

Full description

Saved in:
Bibliographic Details
Published in:Journal of lightwave technology 2018-06, Vol.36 (11), p.2295-2300
Main Authors: Sokolova, Zinaida N., Pikhtin, Nikita A., Asryan, Levon V.
Format: Article
Language:English
Subjects:
Carrier density
Charge carrier density
Charge carrier processes
Optical losses
Optical pumping
Quantum efficiency
Quantum theory
Quantum well laser
Quantum well lasers
semiconductor laser
Semiconductor lasers
Two dimensional displays
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Due to internal optical absorption loss, which varies with carrier density in the optical confinement region, the operating characteristics can be two valued in semiconductor quantum well lasers. Particularly, there can be two lasing thresholds and two branches in the light-current characteristic. While the internal differential quantum efficiency for the first (conventional) branch of the light-current characteristic is less than 1 and decreases with increasing pump current, that for the second (unconventional) branch is greater than 1 and nonmonotonous.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2018.2806942