Journal ArticleDOI
Reduction in the series resistance of the distributed Bragg reflector in vertical cavities by using quasi‐graded superlattices at the heterointerfaces
TLDR
In this paper, the authors demonstrate the reduction in the series resistance of the distributed Bragg reflector by introducing quasi-graded superlattices at the heterointerfaces.Abstract:
Surface emitting optical devices with a vertical cavity have been investigated for applications in optical interconnections. To integrate these devices into a two‐dimensional array, it is necessary to improve the conversion efficiency from electrical power to optical power. To meet this requirement, the series resistance of the distributed Bragg reflectors that form the vertical cavity must be reduced. This article demonstrates the reduction in the series resistance of the distributed Bragg reflector by introducing quasi‐graded superlattices at the heterointerfaces. By using this structure, we obtain a low series resistance distributed Bragg reflector without compromising the high reflectivity. The mechanism of the reduction in the series resistance is studied and it is found that an increase in tunneling current leads to a decrease in the resistance. The dependence of tunneling current on doping concentration of the distributed Bragg reflector and the superlattice structure is also discussed.read more
Citations
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Journal ArticleDOI
Metamorphic DBR and tunnel-junction injection. A CW RT monolithic long-wavelength VCSEL
J. Boucart,Christophe Starck,Fabienne Gaborit,Antonina Plais,N. Bouche,E. Derouin,J.C. Remy,J. Bonnet-Gamard,Leon Goldstein,C. Fortin,D. Carpentier,Paul Salet,Francois Brillouet,Joel Jacquet +13 more
TL;DR: In this article, the first monolithic long wavelength vertical-cavity surface-emitting laser (VCSEL) operating continuous wave at room temperature is presented and details about the conception and realization of the first long-wavelength VCSEL.
Journal ArticleDOI
Optoelectronic device simulation of Bragg reflectors and their influence on surface-emitting laser characteristics
D.W. Winston,R.E. Hayes +1 more
TL;DR: In this paper, a simulation analysis of distributed Bragg reflectors (DBRs) and their affect on the characteristics of vertical-cavity surface-emitting lasers (VCSELs) is presented.
Journal ArticleDOI
Compliant, Heterogeneously Integrated GaAs Micro‐VCSELs towards Wearable and Implantable Integrated Optoelectronics Platforms
Dongseok Kang,Sung-Min Lee,Zhengwei Li,Ashkan Seyedi,John D. O'Brien,Jianliang Xiao,Jongseung Yoon +6 more
TL;DR: In this article, materials design and fabrication strategies are presented to overcome the limitations of conventional VCSELs and create new application opportunities that are unavailable with existing technologies, including large-scale, programmable assemblies on unusual substrates, hybrid integration with dissimilar materials and devices, or mechanically compliant constructions.
Journal ArticleDOI
Reflectance and photomodulated reflectance studies of cavity mode and excitonic transitions in an InGaAs/GaAs/AlAs/AlGaAs VCSEL structure
TL;DR: In this paper, the angular dependence of the photomodulated reflectance (PR) and conventional reflectance spectra of a vertical-cavity surface-emitting laser (VCSEL) was analyzed at room temperature.
Journal ArticleDOI
Temperature characteristics of a vertical-cavity surface-emitting laser with a broad-gain bandwidth
Mikihiro Kajita,T. Kawakami,M. Nido,A. Kimura,Takashi Yoshikawa,Kaori Kurihara,Yoshimasa Sugimoto,Kenichi Kasahara +7 more
TL;DR: In this article, a VCSEL with a broad gain bandwidth was proposed to extend the operational temperature range of the active layers of the VLSD, and the authors demonstrated that the extended gain bandwidth gave better temperature characteristics.
References
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Journal ArticleDOI
Tunneling in a finite superlattice
Raphael Tsu,Leo Esaki +1 more
TL;DR: In this article, the transport properties of a finite superlattice from the tunneling point of view have been computed for the case of a limited number of spatial periods or a relatively short electron mean free path.
Journal ArticleDOI
GaInAsP/InP surface emitting injection lasers.
Journal ArticleDOI
Vertical-cavity surface-emitting lasers: Design, growth, fabrication, characterization
TL;DR: In this paper, the authors have designed, fabricated, and tested vertical-cavity surface-emitting laser (VCSEL) with diameters ranging from 0.5 mu m to>50 mu m.
Journal ArticleDOI
Resonant cavity-enhanced (RCE) photodetectors
TL;DR: In this paper, the photosensitivity characteristics of resonant cavity-enhanced (RCE) photodetectors have been investigated and a general expression for quantum efficiency was derived taking the external losses into account.