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April/ May 2025

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Phosphosilicate-based Raman fiber laser with an acousto-optic tunable filter enabling multi-wavelength and single-wavelength tunable emission.

Spectrally Reconfigurable Multi-Wavelength Raman Fiber Laser with up to 15.29 THz of Tuning Range (JLT)

Journal of Lightwave Technology
A new fiber laser design offers broad and flexible control over output wavelengths. Using phosphosilicate fiber, this system enables single and multi-wavelength operation with tunable spacing and stable performance.
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Diagram visualization: A metallic electrode structure is shown interacting with a blue photonic waveguide, generating a rainbow-colored light effect.

Compact Slow-Wave Electrode Design for High-Index Photonic Devices (PJ)

IEEE Photonics Journal
A new IEEE study introduces a slow-wave electrode design that enables efficient electro-optic performance in high-index platforms while reducing size and power consumption.
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Researchers demonstrate tunable ring lasers and distributed feedback (DFB) lasers in silicon photonics for LiDAR and optical interconnects.

Heterogeneously Integrated Si-III-V Laser Sources in Open Access PDK for LiDAR and Datacom Applications

Journal of Lightwave Technology
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This infographic illustrates the function and structure of a Dual-Bottle Microresonator (DBM) used for generating single- and multi-mode laser emissions, a crucial technology for future sensing and photonic applications. The diagram shows a pump laser and a laser ring coupling light into the central, hourglass-shaped DBM. Key features highlighted are the DBM's distinct lobe and valley geometry and its function as a wavelength-selective filter. The resulting laser output is then monitored via an optical spectrum analyzer . The primary benefits of using the DBM as a wavelength filter are listed as a low lasing threshold , precise mode selectivity , and wavelength tunability . This setup enables stable and efficient laser generation in integrated photonics.

Study of the Performance of a Laser Structure based on a Fiber Ring and a Dual-bottle Whispering Gallery Mode Microresonator (JLT)

Journal of Lightwave Technology
A fiber ring laser with a dual-bottle microresonator achieves stable, tunable operation with single- and multi-wavelength outputs, enabling flexible control of laser emissions for applications in sensing and photonics.
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Research News Stories

Quantum Dot DBR Lasers Monolithically Integrated on Silicon Photonics by In-Pocket Heteroepitaxy (JLT)

Quantum Dot DBR Lasers Monolithically Integrated on Silicon Photonics by In-Pocket Heteroepitaxy

Journal of Lightwave Technology
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Video Short

Simulation of a GaInP2 - GaAs - GaInAsN - Ge photovoltaic cell for space applications (PJ)

Simulation of a GaInP2 – GaAs – GaInAsN – Ge photovoltaic cell for space applications

Researchers have designed an efficient four-junction solar cell using open-source simulation software—ideal for space applications!
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