High-Accuracy Laser Wavelength Meter - The model 621A is offered for the most demanding experiments, measuring absolute wavelength to the highest accuracy of ± 0.2 ppm.

Two versions of the 621 series are available. For experiments that are less exacting, the model 621B is a lower-priced alternative.

• Accuracy ± 0.2 ppm for 621A Model
• Accuracy ± 0.75 ppm for 621B Model

Bristol Instruments

621 Series - Laser Wavelength Meter

Low Cost Laser Wavelength Meter - 521 Serie: is a compact system that provides accurate laser wavelength measurement, and is offered at a very attractive price.

• Measures absolute w avelength to ±10ppm
  
• Built-in reference for continuous calibration
  
• Measurement rate of 10 Hz
  
• Wavelength coverage from 350nm to 1.7μm
  
• Convenient, pre-aligned optical fiber input (GHz)
  
• USB interface for easy integration into experiment

Bristol Instruments

521 - Laser Wavelength Meter - Low Cost

The OMH-6700B Silicon Power/Waveheads provide the flexibility to easily and accurately measure the optical power and wavelength of laser sources from blue to NIR colour band.

Features:

• Measures power & wavelength from 350nm to 1100nm
  
• NIST traceable calibration
  
• Measures up to 10W optical power
  
• Integrating sphere-based measurements
  
• Temperature-controlled silicon photodetectors
  
• Free-space and fibre-coupled measurements
  
• Fibre exit port for external measurements (OMH-6780B / OMH-6790B only)

ILX Lightwave

OMH-6700B - Silicon

The OMM-6810B is the only power meter capable of measuring the optical power and wavelength of semiconductor lasers including short wavelength lasers, high power pumps and fibre lasers.

A variety of measurement heads cover wavelength ranges from 350 to 1700nm for power only or power & wavelength measurement.

Features:

• NIST traceable calibration
  
• Measures power & wavelength with ILX Power/Waveheads
  
• Integrating sphere based power measurements
  
• Power measurement up to 10W
  
• Free-space and fibre measurements heads
  
• Easy test system integration with standard GPIB interface

ILX Lightwave

OMM-6810B Optical Power / Wavelength Meter

The OMH-6700B InGaAS Power/Waveheads provide the flexibility to easily and accurately measure the optical power and wavelength of laser sources in NIR spectrum.

Features:

• Measures power & wavelength from 900nm to 1650nm
  
• NIST traceable calibration
  
• Measures up to 10W optical power
  
• Integrating sphere-based measurements
  
• Temperature-controlled InGaAs photodetectors
  
• Free-space and fibre-coupled measurements
  
• Fibre exit port for external measurements (OMH-6780B / OMH-6795B only)

ILX Lightwave

OMH-6700B - InGaAs