FZW compact Wavemeter

Model 5105 Dual-Phase Analogue Lock-in amplifier

A Standalone compact wavelength measurement device based on Fizeau interferometers, providing reliably accurate measurements over a wide range of wavelengths (400-1100nm) without recalibration.

The measurement and calculation is performed on the device, with the result displayed on the screen, removing the need for a host computer. The small form factor makes it an easy-to-use analysis tool, and can be powered either through USB or from a DC plugpack. It provides an analog output for either wavelength monitoring or laser stabilization via a built-in tuneable PID controller.

It includes both Ethernet and USB interfaces for command and query, with immediate integration into existing control systems (LabVIEW, MATLAB and python drivers provided). It comes with a fully-featured software suite, including long-term measurement and modehop-free scan-range measurement. A simple one-button recalibration procedure using an external reference source compensates for any long-term drift.


  • Absolute accuracy 600MHz
  • Measurement precision 50MHz
  • Up to 250 measurements/s
  • Operation over 400-1100nm without recalibration
  • Rapid on-device measurement, no host computer required!
  • Integrated PID controller for wavelength stabilisation
  • Interactive display for control and diagnostics
  • Ethernet and USB interfaces
  • Compact form-factor, 146 x 120 x 81 mm



This product is manufactured by MOGLabs.

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