Laser Wavelength Meters and Spectrum Analysers

Bristol Instruments offers laser wavelength meters and spectrum analysers for laser R&D and telecommunication applications.

Their portfolio covers three core technologies: laser wavelength meters, laser spectrum analysers, and single and multi-wavelength meters (telecommunications industry only). These solutions provide unmatched accuracy of +/- 0.0001nm.

Laser Wavelength Meters and Spectrum Analysers

Range features

A high level overview of what this range offers

  • Best wavelength meters for researchers and engineers who need to know the exact wavelength of their lasers- Bristol Instruments’ wavelength meters models 671 and 871 use proven interferometer-based technology to measure absolute wavelength to accuracy as high as ± 0.0001nm for CW and pulsed lasers that operate at wavelengths from 375nm to 12µm
  • Some of the Bristol Instruments’ wavelength meters are dedicated to the telecommunications industry- Series 238, 338, 428, and 828 will allow precise wavelength and side-mode suppression ratio measurement on telecommunication laser systems from 700nm to 1650nm
  • Spectral analysis and wavelength measurement in one instrument- Bristol Instruments’ laser spectrum analysers (771 and 772) combine proven Michelson interferometer technology with fast Fourier transform analysis to operate as both a high-resolution spectrum analyser and a high-accuracy wavelength meter for pulsed and CW lasers from 375nm to 12μm

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What’s in this range?

All the variants in the range and a comparison of what they offer

ModelTypeLaser typeWavelengthAccuracy/spectral resolutionMeasurement rate

671 Series

Single-wavelength meter

For CW lasers

from 375nm to 12µm

+/- 0.0001nm

Continuous

871 Series

Single-wavelength meter

For pulsed and CW lasers

from 375nm to 2.5µm

+/- 0.0001nm

1kHz

238 Series

Single-wavelength meter

For telecommunication lasers

from 700 to 1650nm

+/- 3pm

15Hz

338 Series

Single-wavelength meter

For telecommunication lasers

from 700 to 1650nm

+/- 3pm

25Hz

828 Series

Single-wavelength meter

For telecommunication lasers

from 700 to 1650nm

+/- 3pm

1 kHz

438 Series

Multi-wavelength meter

For telecommunication lasers

from 700 to 1650nm

+/- 3pm

10 Hz

771 Series

Spectrum analyser and wavelength meter

For CW and quasi-CW (repetition rate > 10MHz) and pulsed (rep. rate > 50kHz, pulse length > 50ns)

from 375nm to 12µm

Accuracy +/- 0.0001nm

Resolution as high as 2GHz

< 2 sec measurement time

772 Series

Spectrum analyser and wavelength meter

For CW and pulsed lasers (repetition rate > 50Hz)

from 1 to 12µm

Accuracy +/- 10 parts per million

Resolution as high as 4GHz

Approximately 2x time required to collect the chosen number of pulses, but not less than 10s measurement time