Ultrafast gain dynamics in a quantum cascade laser

Time-resolved mid-infrared pump-probe measurements in a quantum cascade laser operating above threshold reveal gain recovery dynamics to be two-fold: relaxation within a stage on a sub-picosecond scale and transport between stages on a picosecond scale.

Saved in:
Bibliographic Details
Main Authors: Hyunyong Choi, Zong-Kwei Wu, Norris, T.B., Gresch, T., Giovannini, M., Faist, J., Diehl, L., Capasso, F.
Format: Conference Proceeding
Language:English
Subjects:
(140.5960) Semiconductor lasers
(320.7100) Ultrafast measurement
Current measurement
Gain
Optical variables measurement
Probes
Quantum cascade lasers
Temperature measurement
Tunneling
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Time-resolved mid-infrared pump-probe measurements in a quantum cascade laser operating above threshold reveal gain recovery dynamics to be two-fold: relaxation within a stage on a sub-picosecond scale and transport between stages on a picosecond scale.
ISSN:2160-9004
DOI:10.1109/CLEO.2006.4628692