Influence of non-equilibrium carrier dynamics on pulse amplification in semiconductor gain media

C. N. Böttge; J. Hader; I. Kilen; S. W. Koch; J. V. Moloney

doi:10.1117/12.2080140

4 March 2015 Influence of non-equilibrium carrier dynamics on pulse amplification in semiconductor gain media

C. N. Böttge, J. Hader, I. Kilen, S. W. Koch, J. V. Moloney

Proceedings Volume 9349, Vertical External Cavity Surface Emitting Lasers (VECSELs) V; 934903 (2015) https://doi.org/10.1117/12.2080140
Event: SPIE LASE, 2015, San Francisco, California, United States

Abstract

The influence of non-equilibrium carrier dynamics on pulse propagation through inverted semiconductor gain media is investigated. For this purpose, a fully microscopic many-body model is coupled to a Maxwell solver, allowing for a self-consistent investigation of the light–matter-coupling and carrier dynamics, the optical response of the laser and absorber in the multiple-quantum-well medium, and the modification of the light field through the resulting optical polarization. The influence of the intra-pulse dynamics on the magnitude and spectral dependence of pulse amplification for single pulses passing through inverted quantum-well media is identified. In this connection, the pulse-induced non-equilibrium deviations of the carrier distributions, the kinetic-hole filling kinetics in the gain medium, and the saturable-absorber-relaxation dynamics are scrutinized. While pulses shorter than about 100 fs are found to be rather unaffected by the carrier-relaxation dynamics, the pump-related dynamics become prominent for pulses in the multi-picosecond range leading to significant amplification.

Citation Download Citation

C. N. Böttge, J. Hader, I. Kilen, S. W. Koch, and J. V. Moloney "Influence of non-equilibrium carrier dynamics on pulse amplification in semiconductor gain media", Proc. SPIE 9349, Vertical External Cavity Surface Emitting Lasers (VECSELs) V, 934903 (4 March 2015); https://doi.org/10.1117/12.2080140

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