z-logo
open-access-imgOpen Access
Dynamic amplitude-phase coupling in quantum-dot lasers
Author(s) -
Edeltraud Gehrig,
Ortwin Hess
Publication year - 2005
Publication title -
applied physics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 442
eISSN - 1077-3118
pISSN - 0003-6951
DOI - 10.1063/1.1931059
Subject(s) - quantum dot laser , laser , physics , semiconductor laser theory , amplitude , coupling (piping) , phase (matter) , quantum dot , measure (data warehouse) , excitation , optoelectronics , optics , quantum mechanics , materials science , database , computer science , metallurgy

The well-known alpha-factor is a convenient measure to describe the magnitude of the amplitude-phase coupling of semiconductor lasers. But is the alpha-factor really a parameter? First-principle simulations of InGaAs quantum-dot lasers and amplifiers show that in spatially extended quantum-dot laser structures, the amplitude phase coupling is far from being a constant. Our computation of the alpha-factor demonstrates the same large and excitation-dependent variation and scatter as corresponding to experimentally determined values. Our results therefore provide a key to the interpretation and give a measure of applicability of the alpha-factor for the classification of quantum-dot lasers. (c) 2005 American Institute of Physics.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.
Having issues? You can contact us here
Accelerating Research

Address

John Eccles House
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom