2022
DOI: 10.3390/electronics11091430
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GaN Laser Diode Technology for Visible-Light Communications

Abstract: Gallium nitride (GaN) laser diodes (LDs) are considered for visible light communications (VLC) in free space, underwater, and in plastic optical fibers (POFs). A review of recent results is presented, showing high-frequency operation of AlGaInN laser diodes with data transmission rates up to 2.5 Gbit/s in free space and underwater and high bandwidths of up to 1.38 GHz through 10 m of plastic optical fiber. Distributed feedback (DFB) GaN LDs are fabricated to achieve single-frequency operation. We report on sin… Show more

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Cited by 21 publications
(8 citation statements)
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“…The measured device parameters prove that within the proposed approach, it is possible to obtain comparable optoelectronic properties of nitride-based etched and cleaved laser diodes. This is the cornerstone for the fabrication of photonic integrated circuits for visible light communication [ 24 ], especially for underwater communication [ 25 ], using wavelength division multiplexing [ 26 ]. Light sources with true, single-mode emission use evanescent mode coupling to an external ring waveguide cavity [ 27 ], and there are also light sources for on-chip bio-lab for optogenetics applications [ 28 ].…”
Section: Introductionmentioning
confidence: 99%
“…The measured device parameters prove that within the proposed approach, it is possible to obtain comparable optoelectronic properties of nitride-based etched and cleaved laser diodes. This is the cornerstone for the fabrication of photonic integrated circuits for visible light communication [ 24 ], especially for underwater communication [ 25 ], using wavelength division multiplexing [ 26 ]. Light sources with true, single-mode emission use evanescent mode coupling to an external ring waveguide cavity [ 27 ], and there are also light sources for on-chip bio-lab for optogenetics applications [ 28 ].…”
Section: Introductionmentioning
confidence: 99%
“…Moreover, unlike any other wireless communications technologies, the data broadcasting function is enabled without extra energy consumption for data carrier generation. So, VLC is developed based on the ubiquitous character and the fast-switching ability of solid-state lighting (SSL) sources such as light emitting diodes (LEDs) [ 4 , 5 , 6 , 7 ]. As well known, SSL light sources are extremely energy-efficient, benefit from an extended lifetime that can reach up to 50,000 h, and have switching times that tend to go down to ns values [ 6 , 7 ], enabling in turn very high data rates [ 8 ].…”
Section: Introductionmentioning
confidence: 99%
“…So, VLC is developed based on the ubiquitous character and the fast-switching ability of solid-state lighting (SSL) sources such as light emitting diodes (LEDs) [ 4 , 5 , 6 , 7 ]. As well known, SSL light sources are extremely energy-efficient, benefit from an extended lifetime that can reach up to 50,000 h, and have switching times that tend to go down to ns values [ 6 , 7 ], enabling in turn very high data rates [ 8 ]. Thus, the VLC technology has the potential to transform any LED light source into a data broadcasting unit [ 1 , 2 , 3 , 6 , 7 ].…”
Section: Introductionmentioning
confidence: 99%
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“…VLC provides simple, flexible, and cost-effective OWC transmission [ 4 ] and is an auspicious technology for sixth generation (6G) networks because of the broad unlicensed spectrum [ 2 ]. Currently, there is a push toward green sustainable communication sources, such as VLC based on light-emitting diodes (LED) [ 5 ], which can support both lighting and communication simultaneously [ 4 , 6 , 7 ]. In other words, it modulates the intensity of light to transmit information at a very high rate [ 2 , 8 ].…”
Section: Introductionmentioning
confidence: 99%