Bristol 872 Series Laser Wavelength Meter

The 872 Series Laser Wavelength Meter builds upon our unique Fizeau etalon technology to provide exceptional frequency resolution. By minimising measurement drift over time, the 872 system can detect very small wavelength deviations making it ideal for the frequency stabilisation of lasers.

Features:

• Measurement resolution as fine as 200 kHz

• Wavelength accuracy up to ± 0.0001 nm

• Automatic calibration with a built-in wavelength standard

• Built-in PID controller for precise laser stabilisation

• Operation available from 375 to 1700 nm

• Sustained measurement rate of 1 kHz

• Convenient pre-aligned fibre-optic input

• Optional Fibre-Optic Switch accessory enables the characterisation of up to 8 lasers with a single instrument

• 5-year warranty covers all parts and labor

Two versions of the 872 Laser Wavelength Meter are available. The model 872A-VIS operates over the range of 375 to 1100 nm, and the model 872A-NIR works from 630 to 1700 nm. Both instruments provide measurement resolution better than 0.001 part per million (300 kHz at 1000 nm) and wavelength accuracy of ± 0.2 parts per million (± 60 MHz at 1000 nm).

Automatic calibration with a built-in wavelength standard guarantees this performance and ensures the most meaningful experimental results.