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Confidence You Can Measure

Wavelength meters, spectrum analyzers & optical thickness gauges

Scientists and engineers all over the world trust our precision instruments to help advance their research, product development, and production processes.


High-accuracy wavelength measurement


Bristol Instruments’ wavelength meters are for scientists and engineers who need to know the exact wavelength of their lasers.

Optical transceiver testing


Bristol Instruments provides optical wavelength meters and multi-wavelength meters for testing optical transceivers and WDM transmission systems.

High-resolution spectral analysis


The spectrum analyzers from Bristol Instruments provide both high-resolution spectral analysis and high-accuracy wavelength measurement in one instrument.

Non-contact thickness measurement


The thickness gauge products from Bristol Instruments provide accurate, repeatable, and reliable thickness information for the most demanding applications.