Recent Approaches for Broadening the Spectral Bandwidth in Resonant Cavity Optoelectronic Devices

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Resonant cavity optoelectronic devices, such as vertical cavity surface emitting lasers (VCSELs), resonant cavity enhanced photodetectors (RCEPDs), and electroabsorption modulators (EAMs), show improved performance over their predecessors by placing the active device structure inside a resonant cavity. The effect of the optical cavity, which allows wavelength selectivity and enhancement of the optical field due to resonance, allows the devices to be made thinner and therefore faster, while simultaneously increasing the quantum efficiency at the resonant wavelengths. However, the narrow spectral bandwidth significantly reduces operating tolerances, which leads to severe problems in applications such as optical communication, imaging, and biosensing. Recently, in order to overcome such drawbacks and/or to accomplish multiple functionalities, several approaches for broadening the spectral bandwidth in resonant cavity optoelectronic devices have been extensively studied. This paper reviews the recent progress in techniques for wide spectral bandwidth that include a coupled microcavity, asymmetric tandem quantum wells, and high index contrast distributed Bragg-reflectors. This review will describe design guidelines for specific devices together with experimental considerations in practical applications
Publisher
HINDAWI PUBLISHING CORPORATION
Issue Date
2015
Language
English
Article Type
Review
Keywords

HIGH-CONTRAST GRATINGS; ENHANCED PHOTODETECTOR ARRAYS; DISTRIBUTED-BRAGG-REFLECTOR; OBLIQUE ANGLE DEPOSITION; SURFACE-EMITTING LASERS; TANDEM QUANTUM-WELL; OPTICAL INTERCONNECTS; MULTIWAVELENGTH VCSEL; PHOTONIC CRYSTALS; THIN-FILMS

Citation

ADVANCES IN CONDENSED MATTER PHYSICS

ISSN
1687-8108
DOI
10.1155/2015/605170
URI
http://hdl.handle.net/10203/212669
Appears in Collection
ME-Journal Papers(저널논문)
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