MEASUREMENT OF THE INTERWELL CARRIER TRANSPORT LIFETIME IN MULTI-QUANTUM-WELL OPTICAL AMPLIFIERS BY POLARIZATION-RESOLVED 4-WAVE-MIXING

Citation
R. Paiella et al., MEASUREMENT OF THE INTERWELL CARRIER TRANSPORT LIFETIME IN MULTI-QUANTUM-WELL OPTICAL AMPLIFIERS BY POLARIZATION-RESOLVED 4-WAVE-MIXING, Applied physics letters, 69(27), 1996, pp. 4142-4144
Citations number
12
Categorie Soggetti
Physics, Applied
Journal title
ISSN journal
00036951
Volume
69
Issue
27
Year of publication
1996
Pages
4142 - 4144
Database
ISI
SICI code
0003-6951(1996)69:27<4142:MOTICT>2.0.ZU;2-A
Abstract
Polarization-resolved four-wave mixing spectroscopy is used to study i nterwell carrier dynamics in an alternating-strain multiquantum-well o ptical amplifier. The experimental data are found to be in good agreem ent with a simple model based on quantum capture/escape and diffusion processes. The results suggest that the interwell transport in this st ructure is mainly limited by carrier escape, and give an estimate of 1 6 ps for the overall transport lifetime. (C) 1996 American Institute o f Physics.