Mixed gas multi-waveband atomic optical filter and method thereof

Abstract

The invention discloses a mixed gas multi-waveband atomic optical filter and a method thereof. The mixed gas multi-waveband atomic optical filter comprises a glass gas chamber with mixed alkali metal rubidium and cesium atoms, a first Glan Taylor prism and a second Glan Taylor prism which are orthometric in the direction of polarization of light, and a stable magnetic field source. The prisms are arranged at two sides of the glass gas chamber with the mixed alkali metal rubidium and cesium atoms and right face to the alkali metal atom glass gas chamber, and complete Faraday rotation effect can be achieved through the mixed rubidium and cesium atoms of the glass gas chamber with the mixed alkali metal rubidium and cesium atoms and laser; the stable magnetic field source is used for producing a gradient magnetic field with changing strength onto the glass gas chamber with the mixed alkali metal rubidium and cesium atoms, and the direction of the magnetic field of the gradient magnetic field is parallel to the direction of light propagation. The filter has the advantages that the filter is simple in structure, easy to manufacture, fine in performance, stable in operation and long in service life.

Description

technical field [0001] The invention belongs to the field of optical frequency atomic filter technology and optical device technology, and relates to a multi-band atomic filter based on a mixed gas gas chamber type, in particular to an atomic gas filter based on a gas chamber type mixed gas of various alkali metal atoms Atomic optical filters and methods for Faraday anomalous dispersion effects. Background technique [0002] The Faraday anomalous dispersion atomic filter (hereinafter referred to as the atomic filter) has many unique advantages such as high transmittance, narrow bandwidth, and high sideband rejection ratio. When the signal-to-noise ratio is high, such as free-space optical communication , Laser Brillouin spectroscopy and biological tissue imaging, laser radar and remote sensing, laser single-mode frequency stabilization, optical frequency atomic clocks and other scientific research and application fields have important applications. [0003] The transmission...

AI Technical Summary

Problems solved by technology

In existing articles and patent reports at home and abroad, atomic filters use a single atomic species, combined with certain magnetic field and temperature parameters, and can only provide a single wavelength filtering function

Images