Precisely stabilize your laser’s wavelength

The 872 Series Laser Wavelength Meter builds upon Bristols unique Fizeau etalon technology to provide a frequency resolution as high as 200 kHz. Therefore, the model 872 can detect very small wavelength deviations making it ideal for experiments where a laser’s frequency must be actively regulated.

The 872 Laser Wavelength Meter measures the wavelength of both CW and pulsed lasers that operate from 375 to 1700 nm. The 872 system’s accuracy is ± 0.2 parts per million (± 60 MHz at 1000 nm) and its frequency resolution is better than 1 part per billion (300 kHz at 1000 nm). Automatic calibration with a built-in wavelength standard guarantees this performance to ensure the most meaningful experimental results.

More confidence in your experimental results

 The 871 Series Laser Wavelength Meter uses a proven Fizeau etalon-based design to measure the wavelength of both pulsed and CW lasers that operate from 375 nm to 2.5 μm.

The model 871A is the most precise, measuring wavelength to an accuracy of ± 0.2 parts per million (± 0.0001 nm at 500 nm). For experiments that are less exacting, the model 871B is a lower-priced alternative with an accuracy of ± 0.75 parts per million (± 0.001 nm at 1500 nm).

The 671 Series Laser Wavelength Meter uses proven Michelson interferometer-based technology to accurately measure the wavelength of CW lasers that operate from 375 nm to 12 μm.

• Wavelength accuracy as high as ± 0.0001 nm
• Continuous calibration with built-in wavelength standard
• Operation available from 375 nm to 12 μm
• Convenient pre-aligned fiber-optic input for wavelengths up to 2.6 μm
• Free-space aperture input with visible alignment aid for IR and mid-IR wavelengths
• Straightforward operation with PC using USB or Ethernet
• Display software provided to control measurement parameters and report wavelength data
• Automatic data reporting using custom or LabVIEW programming eliminates the need for a dedicated PC

The model 671A is the most precise, measuring wavelength to an accuracy of ± 0.2 parts per million (± 0.0001 nm at 500 nm). For experiments that are less exacting, the model 671B is a lower-priced alternative with an accuracy of ± 0.75 parts per million (± 0.001 nm at 1500 nm).

ppm*: “parts per million”, i.e. an accuracy of e.g. 0.2 ppm corresponds to
@ 1000 nm -> 0,0002 nm or 0,2 pm

@ 500 nm -> 0,0001 nm or 0,1 pm

@ 600 THZ -> 120 GHz

> 771 Series Laser Spectrum Analyzer

> 772 Pulsed Laser Spectrum Analyzer

> Accessories

The Spectrum Anaylzer from Bristol Instruments measures both, the wavelength and the emission spectrum including the side-mode suppression ratio. With spectral resolution up to 2 GHz, wavelength accuracy as high as ± 0.2 parts per million, and an optical rejection ratio of more than 40 dB, the model 771 provides the most detailed information about a laser’s spectral properties.

The 772B-MIR Spectrum Analyzer measures the spectral characteristics of pulsed and CW lasers operating

from 1 to 12 μm.
The 772B-MIR Laser Spectrum Analyzer uses a sophisticated co-additive algorithm to enable the analysis of pulsed lasers with a repetition rate as low as 50 Hz. For pulsed lasers, a single scan of the Michelson interferometer is not sufficient to generate an interferogram that can be converted into a spectrum. Therefore, data from multiple scans is used to create a more complete interferogram.

• Spectrum analyzer and wavemeter combining
• Michelson interferometer technology with Fast Fourier Transformation analysis.
• Wavelength range: 1 µm - 12 µm
• For pulsed and CW lasers
• Pulse frequency: Quasi cw to < 100 Hz.
• Accuracy: ± 10 ppm (e.g. ± 0.08 µm @ 8 µm)
• Permanent calibration with stabilized single-frequency HeNe laser
• Optical rejection ratio as high as 20 dB
• Spectral resolution: 4 GHz
• Free-space aperture input with visible alignment aid
• Uncomplicated operation with a PC via USB or Ethernet

Wavelength meters for testing optical transceivers used for WDM transmission systems, data centers, 3D sensing and LIDAR

Our wavelength meters use proven interferometer-based technology to reliably measure the wavelength of a transceiver to an accuracy as high as ± 0.3 pm. Bristol Instruments combines speed and affordability to address the most important requirements of manufacturers. Fast wavelength measurement results in reduced testing times and greater production throughput. And, an affordable price point, along with a five-year warranty, provides the lowest cost of ownership.