Aug 23, 2026Technical Insights
Best Wavelength for Red Light Therapy? A Guide for Device Makers
Best wavelength for red light therapy devices: matching 630–680nm red to skin and scalp targets, and knowing when near-infrared is required.
Insights: Technology, Applications & Corporate News
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Aug 23, 2026Technical Insights
What Is a VCSEL and Why Its Structure Matters
What is a VCSEL? A surface-emitting semiconductor laser whose structure enables wafer-level testing, binning, arrays, and a symmetric beam.
Aug 23, 2026Technical Insights
Should Your Team Buy VCSEL SMD or Bare Die?
VCSEL bare die or SMD: why emitter pitch and the CW rating, not volume, decide which format a red light device OEM should be buying.
Aug 23, 2026Technical Insights
FDA CDRH Reporting for PBM and LLLT VCSEL Devices
FDA CDRH reporting for VCSEL components in PBM and LLLT devices: accession numbers, exemptions, OEM responsibilities, and filing boundaries.
Aug 23, 2026Technical Insights
894.6nm / 895nm VCSEL for Cesium Atomic Clock Optical Pumping
894.6nm / 895nm single-mode VCSELs can be evaluated as compact optical source candidates for cesium D1-line atomic clocks and Cs vapor-cell systems.
Aug 23, 2026Technical Insights
5050 Packaged VCSEL Lasers: Specifications and Application Guide
Learn how to evaluate 5050 VCSEL packages by wavelength, drive current, optical output, beam angle, thermal path, SMT process, and use case.
Aug 20, 2026Technical Insights
What VCSEL Does a Chip-Scale Atomic Clock Need?
Learn what a chip-scale atomic clock VCSEL needs: single-mode output, narrow linewidth, D1 wavelength tuning, polarization, and RF modulation.
Aug 13, 2026Technical Insights
How to Read a VCSEL Datasheet
How to read a VCSEL datasheet: what wavelength, optical power, beam divergence, linewidth, and threshold current mean for your device.
Aug 13, 2026Technical Insights
Why Do Red Light Devices Pass Prototype but Fail in Production?
Red light devices often pass prototype but fail in production when peak wavelength and optical power vary across the production population.
Aug 12, 2026Technical Insights
795nm & 894.6nm VCSELs for OPM Magnetometers
795nm and 894.6nm single-mode VCSEL sources for Rb/Cs OPM magnetometers, vapor cells, and alternative-source evaluation.
Aug 12, 2026Technical Insights
Alternative Source Evaluation for 795nm VCSEL Projects
795nm single-mode VCSEL bare die for Rb D1-line atomic-clock and quantum-sensing evaluation, vapor-cell modules, and source comparison.
Aug 12, 2026Technical Insights
650nm VCSEL SMDs for Lighter, Thinner Hair-Growth Devices
650nm VCSEL SMDs replace TO-5.6 lasers with lower-current SMT packages, Zener protection, and PCB or FPC integration for hair-growth devices.
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