F-P scanning interferometer

A high-resolution laser spectroscopy instruments. Confocal spherical Fabry - Perot interferometer structure, using a sawtooth driven piezoelectric ceramic fine-tune the cavity length, scanning the wavelength of incident light, so that meet the conditions of light through the interferometer into the detector.

The signal is amplified, displayed on an oscilloscope.

The instrument is mainly used for the observation of the laser longitudinal mode.

This device contains four degrees of freedom to adjust frame.

Free spectral range: 4GHz.

Fine constants: greater than 100.