Threshold gain and threshold current analysis of circular grating DFB and DBR lasers

1993 ◽  
Vol 29 (10) ◽  
pp. 2596-2606 ◽  
Author(s):  
Chunmeng Wu ◽  
T. Makino ◽  
S.I. Najafi ◽  
R. Maciejko ◽  
M. Svilans ◽  
...  
Keyword(s):  
Threshold Current ◽  
Current Analysis ◽  
Dbr Lasers ◽  
Circular Grating ◽  
Threshold Gain

Threshold-current analysis of InGaAs-InGaAsP multiquantum well separate-confinement lasers

1991 ◽  
Vol 27 (6) ◽  
pp. 1804-1811 ◽  
Author(s):  
M. Rosenzweig ◽  
M. Mohrle ◽  
H. Duser ◽  
H. Venghaus
Keyword(s):  
Threshold Current ◽  
Current Analysis ◽  
Multiquantum Well

High Gain, Low Threshold Current GaInAsP Based Vcsels for Operation at 1.24UM

2002 ◽  
Vol 744 ◽  
Author(s):  
Zhuopeng Tan ◽  
Yixin Li ◽  
Aris Christou
Keyword(s):  
Resonant Cavity ◽  
Threshold Current ◽  
High Gain ◽  
Cavity Surface ◽  
Optimized Design ◽  
Vertical Cavity Surface ◽  
Surface Emitting Laser ◽  
Low Threshold ◽  
External Efficiency ◽  
Threshold Gain

ABSTRACTAn electrically pumped 1.24um GaxIn1-xAsyP1-y Vertical Cavity Surface Emitting Laser (VCSEL) has been designed and simulated. Threshold gain of 153cm-1 and threshold current of 1.00mA was obtained. The external efficiency predicted is 0.31. Also the optimized design of VCSEL structure is presented in this article. GaInAsP and AlInAs constitute the Distributed Bragg Reflectors (DBRs) multilayer stack. Reflectivity of the top DBRs is 0.97 and reflectivity of the bottom DBRs is 0.9978 and is shown to provide a good resonant cavity and sufficient lasing intensity. Compared with other reported structures, the present VCSEL has a lower threshold current and higher threshold gain.

High temperature operation of circular-grating surface-emitting DBR lasers fabricated on an InGaAs/GaAs structure

1994 ◽  
Vol 6 (3) ◽  
pp. 326-329 ◽  
Author(s):  
M. Fallahi ◽  
M. Dion ◽  
F. Chatenoud ◽  
I.M. Templeton ◽  
R. Barber
Keyword(s):  
High Temperature ◽  
Gaas Structure ◽  
Dbr Lasers ◽  
Circular Grating ◽  
High Temperature Operation

Low threshold CW operation of circular-grating surface-emitting DBR lasers using MQW and a self-aligned process

1994 ◽  
Vol 6 (11) ◽  
pp. 1280-1282 ◽  
Author(s):  
M. Fallahi ◽  
M. Dion ◽  
F. Chatenoud ◽  
I.M. Templeton ◽  
R. Barber ◽  
...  
Keyword(s):  
Cw Operation ◽  
Low Threshold ◽  
Dbr Lasers ◽  
Circular Grating
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