TY - JOUR
T1 - High Performance InAs/In0.53Ga0.23Al0.24As/InP Quantum Dot 1.55 um Tunnel Injection Laser
AU - Bhowmick, Sishir
AU - Baten, Md Zunaid
AU - Bhattacharya, Pallab K.
AU - Frost, Thomas
AU - Ooi, Boon S.
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2014/1
Y1 - 2014/1
N2 - The characteristics of 1.55 ? InAs self-organized quantum-dot lasers, grown on (001) InP substrates by molecular beam epitaxy, have been investigated. Modulation doping of the dots with holes and tunnel injection of electrons have been incorporated in the design of the active (gain) region of the laser heterostructure. Large values of To=227 K (5 °C ? T ?45 °C) and 100 K (45 °C ? T ? 75 °C) were derived from temperature dependent measurements of the light-current characteristics. The modal gain per dot layer is 14.5 cm -1 and the differential gain derived from both light-current and small-signal modulation measurements is 0.8}imes 10-15 cm}2. The maximum measured 3 rm dB small-signal modulation bandwidth is 14.4 GHz and the gain compression factor is 5.4imes 10-17 cm}2. The lasers are characterized by a chirp of 0.6 AA for a modulation frequency of 10 GHz and a near zero ?-parameter at the peak of the laser emission. These characteristics are amongst the best from any 1.55 ? edge-emitting semiconductor laser. © 1965-2012 IEEE.
AB - The characteristics of 1.55 ? InAs self-organized quantum-dot lasers, grown on (001) InP substrates by molecular beam epitaxy, have been investigated. Modulation doping of the dots with holes and tunnel injection of electrons have been incorporated in the design of the active (gain) region of the laser heterostructure. Large values of To=227 K (5 °C ? T ?45 °C) and 100 K (45 °C ? T ? 75 °C) were derived from temperature dependent measurements of the light-current characteristics. The modal gain per dot layer is 14.5 cm -1 and the differential gain derived from both light-current and small-signal modulation measurements is 0.8}imes 10-15 cm}2. The maximum measured 3 rm dB small-signal modulation bandwidth is 14.4 GHz and the gain compression factor is 5.4imes 10-17 cm}2. The lasers are characterized by a chirp of 0.6 AA for a modulation frequency of 10 GHz and a near zero ?-parameter at the peak of the laser emission. These characteristics are amongst the best from any 1.55 ? edge-emitting semiconductor laser. © 1965-2012 IEEE.
UR - http://hdl.handle.net/10754/312220
UR - http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=6665003
UR - http://www.scopus.com/inward/record.url?scp=84889646788&partnerID=8YFLogxK
U2 - 10.1109/JQE.2013.2290943
DO - 10.1109/JQE.2013.2290943
M3 - Article
SN - 0018-9197
VL - 50
SP - 7
EP - 14
JO - IEEE Journal of Quantum Electronics
JF - IEEE Journal of Quantum Electronics
IS - 1
ER -