Fizeau Wavemeter (FZW)
The MOGLabs FZW Fizeau Laser Wavemeter is a precision compact self-contained
wavemeter: no host computer required.
It measures from 400 to 1100nm with absolute accuracy better than 600MHz (3σ).
On-unit display, ethernet and USB connectivity, and PID locking, are standard.
Time-series measurements at up to 500 measurements per second can be plotted on the display or on a host computer. The device is easily integrated with common lab data acquisition systems using simple text commands, and wrappers for LabVIEW,
python and MATLAB.
Matching fibre switches are available, with 4 and 8 input ports, and 4 or 8 analogue outputs
with PID to wavelength-stabilise up to 8 lasers.
Description
A compact wavelength measurement device based on Fizeau interferometers, providing reliably accurate measurements over a wide range of wavelengths (350-1120nm) without recalibration, and up to 1280nm on request. The measurement and calculation is performed on the device, with the result displayed on the screen, removing the need for a host computer. Turn it on, and know your wavelength in less than 2 seconds.
The small form factor makes it an easy-to-use analysis tool, and can be powered either through USB or from a DC plugpack or external battery. An analogue output can be used for wavelength monitoring or laser stabilisation via a built-in PID controller.
Ethernet and USB interfaces allow immediate integration into existing control systems (LabVIEW, MATLAB and python drivers provided) using simple text-based commands. A fully-featured software suite is provided, 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. External triggering and wide bandwidth mode allow use with pulsed lasers.
Compact two, four, and eight-channel fibre switchers are available, using MEMS technology for essentially infinite lifetime and rapid switching. Each channel has its own 16-bit DAC for laser frequency control.
Features
Features
- Operates over 370 – 1120nm without recalibration
- 3-sigma uncertainty of 600MHz; typical measurement accuracy < 200MHz
- Built-in PID for laser frequency stabilisation
- Runs from USB or 5V DC jack, no computer required!
- Simple computer interface over Ethernet/USB
- 2x, 4x and 8x fibre switchers available