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February 2025

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Researchers propose a low-cost optical wireless communication (OWC) system using amplified spontaneous emission (ASE). The grating component splits the signal into multiple independently steered beams, enabling simultaneous, dedicated high-speed links to each user device.

Beam-Steered Optical Wireless Communication Enabled by a Wideband ASE Source and Grating

Photonics Technology Letters
In a new IEEE study, researchers develop a cost-effective beam-steering optical wireless communication system for multi-user application using a wideband amplified spontaneous emission source and diffraction grating.
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Cross-section diagram and performance comparison showing how increasing the P-electrode area ratio from 20% to 30% improves current uniformity and enhances the optoelectronic performance of 22 µm micro-LEDs, especially under low current density, based on hyperspectral imaging and COMSOL simulations.

Effect of P-Electrode Area Ratio on Micro-LED Optoelectronic Performance

Photonics Technology Letters
An IEEE study on P-electrode area ratios reveals their impact on current distribution and light output. Balancing electrode coverage is key to achieving high efficiency in micro-LEDs for displays and sensing.
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A high-level visual representation showing a gold-colored Semiconductor Optical Amplifier (SOA) chip connected to two blue, glowing data center racks. A yellow lightning icon indicates a high-speed, long-distance connection between them. The text highlights the use of the SOA as a booster and pre-amplifier to achieve 67.2 Tbit/s total real-time throughput over a 100 km standard single-mode fiber span, proving the method works effectively even under high transmission losses.

67.2 Tbit/s Real-Time DCI Transmission Demonstration Using Single Seamless SOA

Photonics Technology Letters
A new ultra-wideband semiconductor optical amplifier enables real-time transmission across both C and L bands—boosting efficiency while reducing complexity. The future of high-speed optical networks is here!
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The innovation focuses on a new VLC system using light-emitting diodes (LEDs) designed to overcome the challenge of inter-link interference inherent in densely packed LED arrays, enabling Massive MIMO communication without the need for complex electronics and signal processing.

Decorrelation Lenses for Massive MIMO Visible Light Communications

Photonics Technology Letters
A novel decorrelation lens system enhances visible light communications by reducing signal interference and optimizing compact transceivers. This breakthrough unlocks high-capacity optical wireless networks for the future.
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Research News Stories

Large-Scale Integrated Photonic Device Platform for Energy-Efficient AI/ML Accelerators

Large-Scale Integrated Photonic Device Platform for Energy-Efficient AI/ML Accelerators

Journal of Selected Topics in Quantum Electronics
Researchers have developed a new hardware platform for AI accelerators capable of handling significant workloads with reduced energy requirement.
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Video Short

Comprehensive Optimization of Interferometric Diffusing Wave Spectroscopy

Comprehensive Optimization of Interferometric Diffusing Wave Spectroscopy

Journal of Selected Topics in Quantum Electronics
Researchers develop a portable interferometric diffusing wave spectroscopy system that enhances cerebral blood flow detection with improved signal processing. A step toward better neurological care.
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