Underwater wireless optical communication (UWOC) has been widely considered a supplement to traditional underwater acoustic communication. A real-time UWOC video delivery system was developed in laboratory water tank based on field-programmable gate array (FPGA) with binary frequency shift keying (2FSK) modulation. The achieved full-duplex by using the transmission control protocol (TCP) and forward error correction (FEC). high-power 445 nm light-emitting diode (LED) adopted enhance...

Underwater wireless optical communication (UWOC) is a promising technology that can be candidate to improve the capacity and speed in aquatic media. The aim of this study examine performance silicon photomultiplier (SiPM) array-based multiple-input multiple-output (MIMO) UWOC system. A SiPM modern solid-state photodetector with extremely high sensitivity up single-photon level or photon-counting ability, which helps detecting weak light signals after long-distance underwater channel...

Integrating optoelectronic devices with various functions into a monolithic chip is popular research frontier. The top-down integration scheme on silicon-based III-nitride wafers has unique advantages. A on-chip system lighting source, electrical absorption modulator, waveguide and photodetector the same structure were designed fabricated to discover asymmetry of photon emission in quantum well diode. characteristics characterized detail three different spectral redshifts observed...

Quantum well (QW) diodes have the capability to function as a light-emitting diode or photodiode and inherently feature partial emission-detection spectral overlap. Therefore, QW can sense light emission from another sharing same active region. In association with distributed Bragg reflection (DBR) technique, we here present wavelength-division multiplexing (WDM) visible communication (VLC) over single channel by using vertical assembly of red, green, blue (RGB) diodes. The identical...

Due to the overlapping emission and detection spectra of quantum well (QW) diodes, they inherently possess dual functions light detection. In this paper, we integrate a 4 × array QW diodes combine it with programmable circuit convolutional neural network algorithm, ultimately proposing simultaneous display-communication system. This system not only displays visual content but also receives external signals via wireless communication classifies recognizes signal an accuracy exceeding 95%. The...

The demand for on-chip multifunctional optoelectronic systems is increasing in today's Internet of Things era. III-nitride quantum well diodes (QWDs) can transmit and receive information through visible light be used as both light-emitting (LEDs) photodetectors (PDs). Spectral emission-detection overlap gives the QWD an intriguing capability to detect modulate emitted by itself. In this paper, coexistence emission detection a experimentally demonstrated, wireless video communication system...

Multiple quantum well (MQW) III-nitride diodes can emit light and detect at the same time. In particular, given overlapping region between emission spectrum detection spectrum, diode absorb photons of shorter wavelengths generated from another with MQW structure. this study, a wireless visible communication system was established using two pairs identical different wavelengths. system, green chips were used to transmit receive signals on both sides. We have integrated blue optical filtering...

The combination of plastic optical fiber (POF) with monolithically integrated transmitter and receiver is becoming increasingly attractive for the development miniature optoelectronic sensing systems. Here, we propose a temperature system by integrating GaN chip POF aluminum (Al) reflector. Owing to overlap between electroluminescence responsivity spectra multiple quantum well (MQW) diodes, both having identical MQW structures are on tiny using same fabrication process flow. Environmental...

Abstract Micro multiple quantum well (MQW) III‐nitride diodes usually function as micro light‐emitting diodes, which are considered the next generation of display technology. In addition to both illumination and display, MQW in theory have capability detect modulate light. Here, proof that diode can simultaneously emit light is experimentally confirmed by a wireless communication system using two identical devices. The 20 × monolithically integrated into single chip real‐time imaging...

Multiple-quantum well (MQW) III-nitride diodes can both emit and detect light. In particular, a diode absorb shorter-wavelength photons generated from another that shares an identical MQW structure because of the spectral overlap between emission detection spectra diode, which establishes wireless visible light communication system using two diodes. Moreover, modulating retro-reflector (MRR) enables asymmetric optical links, forms two-way link single transmitter receiver. Here, in...

Multifunctioning InGaN/GaN multi‐quantum well (MQW) diodes can transmit and detect light separately. In particular, MQW have spectral overlap between electroluminescence (EL) responsivity, conferring the unique ability to emitted by another device sharing an identical structure. Herein, a III‐nitride transmitter receiver on single chip are monolithically integrated, which establish asymmetric optical link significantly reduce material processing costs. By attaching skin with emitting toward...

Underwater wireless optical communication (UWOC) is a promising means of realizing large capacity and high rate in aquatic media. In this paper, photomultiplier tube (PMT)-based multiple-input multiple-output (MIMO) UWOC system investigated. Photon counting an effective technique used to detect very low-level light. A PMT with excellent photon-counting mode adopted, the performance terms bit error discussed. The received power can be predicted based on detected photocount each symbol period,...

This Letter reports a collinear optical interconnect architecture for acoustic sensing via monolithic integrated GaN optoelectronic chip. The chip is designed with ring-shaped photodiode (PD) surrounding light-emitting diode (LED) of spectral range from 420-530 nm. axisymmetric structure helps the coaxial propagation light transmission and reception. By placing this multiple-quantum wells (MQW)-based device piece aluminum-coated polyethylene terephthalate (Al/PET) film on fiber ends, an...

Multiple-quantum-well (MQW) diodes have a variety of light emission, transmission, modulation, and detection functions. In particular, they feature an emission-detection spectral overlap region, allowing them to be used as both transmitters receivers at the same time. Here, we vertically assemble red, green, blue MQW create wavelength-division multiplexing (WDM) by using distributed bragg reflector (DBR) technique. A single-link communication system, in which longer-wavelength photons can...

Multiple-quantum well (MQW) diodes can be used as bifunctional due to the emission-detection spectral overlap. When integrated with magnetic fluids (MFs) that have tunable refractive index, they designed micro field sensors. The sapphire substrate of MQW diode chip consists an transmitter and receiver is directly exposed MF, external strength change index at boundary between thus modulating reflected light realizing sensing. Verified by experimental measurements, micromagnetic sensor has a...

When a quantum well (QW) diode is biased with forward voltage and illuminated an external shorter-wavelength light, the device simultaneously emits detects injected current induced mixed inside wells. Separating these superimposed dynamic electrical signals useful for development of multifunctional displays that can transmit receive light signals. By utilizing unique overlap between electroluminescence detection spectra, we establish wireless optical communication system using two AlGaInP...

Due to the electro-optic property of InGaN multiple quantum wells, a III-nitride diode can provide light transmission, photo detection, and energy harvesting under different bias conditions. Made diodes arrayed in single chip, combination allows transmit, detect, harvest visible at same time. Here, we monolithically integrate transmitter, receiver, harvester using compatible foundry process. By adopting bottom <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline">...

In a III-nitride multiple quantum well (MQW) diode biased with forward voltage, electrons recombine holes inside the MQW region to emit light; meanwhile, utilizes photoelectric effect sense light when higher-energy photons hit device displace in diode. Both injected and liberated are gathered diode, thereby giving rise simultaneous emission-detection phenomenon. The 4 × diodes could translate optical signals into electrical ones for image construction wavelength range from 320 440 nm. This...

Dual-functioning multiple quantum well (MQW) diodes can simultaneously transmit and receive information through visible light. Here, we report vertically stacked red, green, blue (RGB) MQW for light detection display applications. Both green are monolithically integrated with distributed Bragg reflector (DBR) filters to realize the separation of The versatile RGB transmitter/receiver system not only creates full-color but also effectively separates into various colors. These results open...

Multiple-quantum-well diodes (MQW diodes) naturally have key functionalities of light emission, transmission, modulation and detection all at the same time, enabling new forms information energy conversion between photons electrons. When approximately biased illuminated a multifunctional MQW diode allows simultaneous emission within single diode. A single-chip imaging system that uses 4 × array is experimentally demonstrated here can simultaneously transmit capture an image, showing great...

Multiple quantum well (MQW) III-nitride diodes show selectable functionalities of light-emitting and light-detecting behaviors, enabling direct touchless device-to-device communication. Here, we propose demonstrate a input/output (I/O) interface using single MQW diode. By integrating an diode with memory via control circuit, optical signals are converted into electrical ones to be written memory, consequently, information is read out from the translated for visible light communication (VLC)....