Modeling of multiple quantum well lasers and study of the coupling effects between wells

Alberto de Deus Sarmento

doi:10.1117/12.238404

19 April 1996 Modeling of multiple quantum well lasers and study of the coupling effects between wells

Alberto de Deus Sarmento

Proceedings Volume 2694, Quantum Well and Superlattice Physics VI; (1996) https://doi.org/10.1117/12.238404
Event: Photonics West '96, 1996, San Jose, CA, United States

Abstract

The coupling effects between quantum wells (QWs) on the small-signal response of unstrained multiple QWs (MQWs) are studied theoretically in a two-band-model approximation. A finite- well model and flat-band conditions were assumed. For any barrier thickness between QWs the gain spectrum showed many peaks located at heavy-hole and light-hole transitions. Therefore, the lasers under investigation are being treated as multiple-level systems. It has been shown that the dependence of this peak is a function of the barrier thickness. The traditional rate equations were reformulated and solved for the intensity modulation response. Results and discussion for the characteristics referred above of a GaInAsP-InP double quantum well laser are presented as a specific example. We conclude that, in contrast to the common belief, the coupling effects can enhance the modulation characteristics under certain conditions.

Citation Download Citation

Alberto de Deus Sarmento "Modeling of multiple quantum well lasers and study of the coupling effects between wells", Proc. SPIE 2694, Quantum Well and Superlattice Physics VI, (19 April 1996); https://doi.org/10.1117/12.238404

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available