scholarly journals Selective oxidation of AlGaAs aperture layers of a Vertical-cavity surface-emitting laser with a generation wavelength of 850 nm

2021 ◽  
Vol 2052 (1) ◽  
pp. 012051
Author(s):  
K O Voropaev ◽  
V A Grebennikov ◽  
A V Zhelannov ◽  
A Yu Prokhorov ◽  
B I Seleznev

Abstract A study of the technology of selective oxidation of the buried AlGaAs layer used as an aperture layer in the structure of a Vertical-cavity surface-emitting laser has been carried out. Oxidation process was made as thermal oxidating in a humidified nitrogen atmosphere. The conditions of the oxidation process are described, images of the oxidation results and the dependence of the growth rate of the oxidized layer on the process temperature are presented. A technology for the formation of an oxide current aperture has been developed for vertical cavity surface emitting lasers with a generation wavelength of 850 nm, which makes it possible to accurately control the size and shape of the resulting aperture.

1992 ◽  
Vol 03 (03n04) ◽  
pp. 263-277 ◽  
Author(s):  
KENICHI IGA

In this paper we review the progress and basic technology of vertical cavity surface emitting lasers together with related parallel surface operating optical devices. First, the concept of a vertical cavity surface emitting laser is presented, and then currently developed devices and their performances will be introduced. We will then feature some technical issues, such as multilayer structures, 2-dimensional arrays, photonic integration, etc. Lastly, future prospects for parallel lightwave subsystems using surface emitting lasers will be discussed.


1996 ◽  
Vol 421 ◽  
Author(s):  
D.I. Babic ◽  
V. Jayaraman ◽  
N. M. Margalit ◽  
K. Streubel ◽  
M.E. Heimbuch ◽  
...  

AbstractLong-wavelength (1300/1550 nm) vertical-cavity surface-emitting lasers (VCSELs) have been much more difficult to realize than VCSELs at shorter wavelengths such as 850/980 nm. The primary reason for this has been the low refractive index difference and reflectivity associated with lattice-matched InP/InGaAsP mirrors. A solution to this problem is to “wafer-fuse” high-reflectivity GaAs/AlGaAs mirrors to InP/InGaAsP active regions. This process has led to the first room-temperature continuous-wave (CW) 1.54 μm VCSELs. In this paper, we discuss two device geometries which employ wafer-fused mirrors, both of which lead to CW operation. We also discuss fabrication of WDM arrays using long-wavelength VCSELs.


MRS Bulletin ◽  
2002 ◽  
Vol 27 (7) ◽  
pp. 520-524 ◽  
Author(s):  
W.G. Breiland ◽  
A.A. Allerman ◽  
J.F. Klem ◽  
K.E. Waldrip

AbstractDistributed Bragg reflectors (DBRs) not only serve as high-reflectance mirrors to define the laser cavity of a vertical-cavity surface-emitting laser (VCSEL), but they also must conduct electricity, confine currents, and provide a single-crystal template for the gain region of the laser. Basic optical and electrical properties of DBRs are presented in this article. Three examples of DBR structures used in VCSEL applications from the ultraviolet to the infrared are given to illustrate the complexity and range of materials science issues that are encountered in DBR growth. Fabrication issues are also discussed.


1995 ◽  
Vol 04 (01) ◽  
pp. 141-161 ◽  
Author(s):  
R. JIN ◽  
G. KHITROVA ◽  
D. BOGGAVARAPU ◽  
H. M. GIBBS ◽  
S. W. KOCH ◽  
...  

We describe recent progress in the physics of light-matter interactions in vertical-cavity surface-emitting-laser (VCSEL) structures. Enhanced spontaneous emission indicates strong medium-cavity coupling. The linewidth broadening factor is more accurately determined in VCSELs, supporting many-body theory of semiconductor nonlinearities. Threshold behavior of VCSELs and microlasers is investigated by photon-correlation experiment and quantum laser theory with emphasis on the importance of second-order coherence properties. External optical injection into a VCSEL cavity leads to injection locking, instabilities, acceleration of coherent energy transfer and sideband lasing, most of which are modeled successfully by recently-developed first-principles semiconductor laser theory.


1997 ◽  
Vol 484 ◽  
Author(s):  
I. Vurgaftman ◽  
W. W. Bewley ◽  
C. L. Felix ◽  
E. H. Aifer ◽  
J. R. Meyer ◽  
...  

AbstractAn optically pumped mid-infrared vertical-cavity surface-emitting laser based on an active region with a “W” configuration of type-II antimonide quantum wells is reported. The emission wavelength of 2.9 ym has a weak temperature variation (dλ/dT ≈ 0.07 – 0.09 nm/K), and the multimode linewidth is quite narrow (2.5–4 nm). Lasing is observed up to T = 280 K in pulsed mode and up to 160 K cw. Under cw excitation at T = 78 K, the threshold pump power is as low as 4 mW for a 6 am spot, and the differential power conversion efficiency is 4.5%.


1999 ◽  
Vol 09 (PR2) ◽  
pp. Pr2-3 ◽  
Author(s):  
J. Jacquet ◽  
P. Salet ◽  
A. Plais ◽  
F. Brillouet ◽  
E. Derouin ◽  
...  

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