Wavelength Meters - Scientific

Bristol Instruments' wavelength meters are for scientists and engineers who need to know the exact wavelength of their lasers. These systems use proven interferometer-based technology to measure absolute wavelength to an accuracy as high as ± 0.0001 nm. To achieve the reliable accuracy that is expected from Bristol Instruments, all of its wavelength meters include a built-in wavelength standard for calibration. Systems are available for CW and pulsed lasers that operate at wavelengths from 375 nm to 12 µm.

671 Series

CW lasers, 375 nm – 12 μm

Wavelength information is critical for applications such as high-resolution laser spectroscopy, photochemistry, cooling/trapping, and optical sensing. The best way to accurately measure laser wavelength is with the 671 Series Laser Wavelength Meter. This system uses a proven Michelson interferometer-based design to measure the wavelengths of CW lasers to an accuracy as high as ± 0.2 parts per million. Continuous calibration with a built-in wavelength standard guarantees the reliable accuracy that is required for the most meaningful experimental results.

871 Series

Pulsed and CW lasers, 375 – 1700 nm, 1 kHz measurement rate

The 871 Laser Wavelength Meter from Bristol Instruments is the best way to measure the absolute wavelength of both pulsed and CW lasers and OPOs. By combining proven Fizeau etalon technology with automatic calibration, the reliable accuracy needed for the most meaningful experimental results is ensured. What’s more, a sustained measurement rate of 1 kHz enables the wavelength characterization of every single pulse for most lasers. And, the resulting time resolution of 1 ms provides the most detailed analysis of tunable lasers.