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December 2025

Infographics

Infographic titled "Broadband Ultrafast All-Fiber Laser Source for Four-Modal Nonlinear Bioimaging." It illustrates a 1,100-nm laser beam striking a biological sample, which generates four types of signals: two-photon and three-photon fluorescence, and second and third-harmonic generation. A monitor displays four individual color-coded scans merged into one high-detail composite image of biological tissue. Key specs include 40 nJ pulse energy and 50 fs pulse duration.

Four-modal nonlinear bioimaging enabled by a single robust broadband ultrafast all-fiber source

JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
Researchers developed a compact broadband ultrafast all-fiber laser that enables simultaneous four-modal nonlinear optical imaging, providing a simplified yet powerful solution for label-free structural analysis.
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Autocorrelation bias in diffuse correlation spectroscopy observable via SPAD arrays

Journal of Selected Topics in Quantum Electronics
Researchers explore how autocorrelation bias can be corrected in diffuse correlation spectroscopy, paving the way for more accurate blood flow monitoring.
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A technical infographic titled "Optimized Resonant Cavity (RC) Micro-LED Design for Improved Yield and Color Purity." It features a 3D diagram of a circular RC Micro-LED showing layers like the Distributed Bragg reflector, GaN, and an ITO layer on a silicon substrate. Key results highlighted include a 9.5 nm narrow spectral width and a 1.98 nm reduced blue shift, noting suitability for augmented reality displays.

Effect of die shape and size on performance of GaN-Based Resonator Micro-LEDs

Photonics Technology Letters
Optimized RC Micro-LEDs with tighter beams and higher yield boost efficiency, bringing practical augmented reality closer.
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A technical infographic set against a dark purple background, showing a complex arch bridge structure on the left and a diagram of an acoustic monitoring system on the right. An inset diagram on the bridge highlights 'refractive index modulation.' Text describes the system's performance in the 200 Hz–13 kHz range and a 3-point list of benefits. IEEE logos are at the bottom.

Airborne Audible Sound Detection via Phase Bias-Enhanced Sagnac Interferometer Using 3×3 Fiber Coupler

Journal of Lightwave Technology
A new phase-bias-enhanced Sagnac interferometer design boosts airborne acoustic detection sensitivity, providing a stable and cost-efficient solution for high-precision acoustic sensing.
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Research News Stories

Pulse compression in Ho:ZBLAN photonic crystal fiber using a NOLM configuration for ultrashort Mid-IR generation

Journal of Quantum Electronics
A compact fiber-based system has been developed to compress mid-infrared laser pulses to 187 femtoseconds using low input power. By integrating a holmium-doped ZBLAN photonic crystal fiber within a nonlinear optical loop mirror, the approach achieves high compression efficiency with minimal pedestal energy, offering a simplified route to ultrafast mid-IR sources for spectroscopy and biomedical imaging.
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Video Short

High-Efficiency Compact Optical Transmitter With a Total Bit Energy of 0.78 pJ/bit Including Silicon Slow-Light Modulator and Open-Collector Current-Mode Driver

High-Efficiency Compact Optical Transmitter With a Total Bit Energy of 0.78 pJ/bit Including Silicon Slow-Light Modulator and Open-Collector Current-Mode Driver

JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
A new IEEE study introduces a sub-millimeter optical transmitter that cuts power consumption to one-quarter of conventional designs while supporting high-speed data rates beyond 64 Gbaud.
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