Tag: SPIE

Robust and field-replaceable multiwavelength laser system for flow cytometry

Flow cytometry requires stable, precisely-shaped laser light for accurate fluorescence detection. Modulight’s ML6640 laser engine integrates automatic beam alignment and built-in beam shaping to deliver stable, uniform illumination over time. This work presents updated characterization results of the ML6640, including beam uniformity, optical stability, and alignment performance.

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Long-lifetime 632.8 nm DBR laser diode solution for HeNe replacement

Scientific papers / 14-pin butterfly, 632.8 nm, DBR, diode laser, helium-neon, HeNe, high reliability, interferometry, metrology, microscopy, on-chip grating, single-frequency, spectroscopy, SPIE, stable operation / March 5, 2026

This paper demonstrates the performance and long-term reliability of Modulight’s 632.8 nm DBR laser diode, providing a compact, stable, and durable alternative to traditional HeNe lasers for precision metrology and interferometric applications.

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Improving efficiency and stability of power-scalable light engine for super-resolution microscopy

Scientific papers / 355 nm, 405 nm, 488 nm, 532 nm, 561 nm, 638 nm. lowe speckle, BIOS, flat-top beam profile, fluorophores, low-noise, ML6600, multi-color imaging, SPIE, SRM, super-resolution microscopy / March 5, 2026

This paper presents recent enhancements to Modulight’s power-scalable light engine for super-resolution microscopy, improving power stability, dynamic range, and overall robustness to meet the demanding requirements of advanced biological imaging applications.

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Single-frequency VECSEL systems for quantum applications

Scientific papers / 1761 nm, 493 nm, 553 nm, 592 nm, 614 nm, 649 nm, Ba, Barium, external cavity, high-power, ion transitions, ML6600, multi-wavelength, narrow linewidth, quantum, quantum computing, Quantum West, qubit, Rb, Rubidium, SPIE, VECSEL, Yb, Ytterbium / March 5, 2026

As quantum sensing applications move toward commercialization, compact and efficient laser sources at rubidium wavelengths are becoming increasingly important. This paper presents Modulight’s 780 nm and 795 nm VCSEL technologies, optimized for applications such as vapor-cell magnetometers where low power consumption, small size, and stable performance are critical. The authors discuss wafer-level manufacturing techniques, polarization control, and production scalability for high-yield quantum sensing solutions.

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Integrated 795nm narrow linewidth MOPA butterfly laser for quantum sensing and magnetometry

Scientific papers / #TailoredLaser, 780 nm, 795 nm, butterfly, D1, D2, DBR, ICP, magnetometry, MOPA, narrow linewidth, quantum, Quantum West, sensing, SPIE, tapered amplifier / March 5, 2026

High-power narrow-linewidth lasers around 795 nm are essential for quantum sensing, magnetometry, Raman spectroscopy, and biomedical applications. This work introduces a fully integrated butterfly-packaged MOPA solution combining a sub-500 kHz DBR seed laser with a tapered amplifier to achieve watt-class output power while preserving spectral purity. The compact architecture enables high performance in a practical form factor suitable for demanding field and laboratory applications.

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VCSELs for quantum sensing with Rubidium

Scientific papers / #TailoredLaser, 780 nm, 795 nm, array, chip-on-submount, OPTO, Rb, Rubidium, semiconductor, sensing, SPIE, VCSEL / March 5, 2026

Quantum computing platforms based on trapped ions and neutral atoms require robust, high-power laser systems across multiple wavelengths. This paper presents Modulight’s next-generation single-frequency VECSEL platform, delivering tens of watts of narrow-linewidth output with improved size, weight, power, and environmental stability characteristics. The architecture supports multiple integrated laser cores and wavelengths within a single system, providing a scalable solution for future quantum computing applications.

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High-power tapered diode lasers utilizing monolithic gratings

Scientific papers / 778 nm, 780 nm, 785 nm, 935 nm, chip, DBR, DBR laser, Distributed Bragg reflector, fiber laser, high-power, Modulight authors, MOPA, narrow linewidth, OPTO, Photonics West, quantum computing, Raman spectroscopy, SPIE, tapered amplifier, Yb ion repumping, Ytterbium / March 21, 2025

Published in: SPIE OPTO 2025 Authors: Luukas Kuusela, Timo Aho, Riina Ulkuniemi, Mika Mähönen, Jussi Hämelahti, Andreas Schramm, Soile Talmila, Jarkko Liimatainen, Pekko Sipilä, Petteri Uusimaa

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Power scalable speckle-free multi-wavelength light engine for super-resolution microscopy

Scientific papers / 355 nm, 405 nm, 488 nm, 561 nm, 638 nm, BIOS, imaging, laser engine, microscopy, ML6600, Modulight authors, narrow linewidth, Photonics West, speckle removal, SPIE, super-resolution microscopy / March 19, 2025

Published in: SPIE BIOS 2025 Authors: Anna Essauolva, Sergei Kuehn, Visa Kaivosoja, Andrei Fedotov, Petteri Uusimaa

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High-power DBR lasers at elevated operation temperature

Scientific papers / 794.8 nm, Bragg reflector, DBR, DBR laser, diode laser, Distributed Bragg reflector, epitaxial material, high-power, ML6600, Modulight authors, OPTO, Photonics West, Ru D1, Rubidium, sensing, single-frequency, SPIE / March 19, 2025

Published in: SPIE OPTO 2025 Authors: Luukas Kuusela, Timo Aho, Riina Ulkuniemi, Mika Mähönen, Jussi Hämelahti, Andreas Schramm, Soile Talmila, Jarkko Liimatainen, Pekko Sipilä, Petteri Uusimaa

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