Asymmetric optical links using monolithic III-nitride diodes
Posted on 12.01.2021 - 17:29
Multiple-quantum well III-nitride diodes have the capability to both emit and detect light. In particular, III-nitride diode can absorb shorter-wavelength photons generated from another III-nitride sharing identical MQW structures because the spectral overlap between the emission and detection spectra of III-nitride diode, leading to the establishment of a wireless visible light communication system using two identical III-nitride diodes. Moreover, a wireless light communication system using a modulating retro-reflector (MRR) allows for asymmetric optical links, which leads to a two-way optical link using a single transmitter and receiver. Here, in association with a MRR, we propose, fabricate and characterize asymmetric optical links using monolithic III-nitride diodes, wherein one III-nitride diode functions as a transmitter to emit light, a MRR reflects light with encoded information, another monolithically integrated III-nitride diode serves as a receiver to absorb the reflected light to convert optical signals into electrical ones and finally, the encoded information is decoded. Advanced monolithic III-nitride asymmetric optical links can be developed toward Internet of Things deployment, based on such multi-function devices.
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Wang, Linning; Li, Xin; Gao, Xumin; Jia, Bolun; Guan, Qi; Ye, Ziqi; et al. (2021): Asymmetric optical links using monolithic III-nitride diodes. The Optical Society. Collection. https://doi.org/10.6084/m9.figshare.c.5206577.v1
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