
Laser Wavelength Meters and Spectrum Analysers
Supplier: Bristol Instruments

Technology type: Spectrometers
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.
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
What's in this range?
All the variants in the range and a comparison of what they offer
Model |
Type |
Laser type |
Wavelength |
Accuracy/spectral resolution |
Measurement 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 |

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