Double-heterostructure photonic crystal lasers with lower thresholds and higher slope efficiencies obtained by quantum well intermixing.
In order to reduce the optical absorption loss, an array of double-heterostructure photonic crystal microcavity lasers was fabricated in which much of the photonic crystal mirror region was disordered by quantum well intermixing. In characterizing these devices, we obtained more than a factor of two increase in slope efficiencies and more than 20% reduction in threshold pump powers compared to devices that were not intermixed.
Lu
Ling
L
Department of Electrical Engineering - Electrophysics, University of Southern California, Los Angeles, California 90089, USA. lingl@usc.edu
Mock
Adam
A
Bagheri
Mahmood
M
Hwang
Eui Hyun
EH
O'Brien
John
J
Dapkus
P Daniel
PD