Thin-cell Doppler-broadening-free absorption spectrum frequency regulator

Abstract

The invention relates to a laser frequency regulation technology and particularly discloses a thin-cell Doppler-broadening-free absorption spectrum frequency regulator. With the adoption of the thin-cell Doppler-broadening-free absorption spectrum frequency regulator provided by the invention, the problem that the conventional laser frequency regulation technology is influenced by Doppler broadening so that the improvement of the laser frequency stability is limited, can be solved. The thin-cell Doppler-broadening-free absorption spectrum frequency regulator comprises a semiconductor laser device, a polarization beam splitter prism, a light absorption sheet, a photoelectric detector, a white glass sheet, a phase-locked amplifier, a single-photon detector and an oscilloscope; a light path formed by connecting a laser isolator and a half-wave plate in series and in sequence is arranged between an emergent end of the semiconductor laser device and an incidence end of the polarization beam splitter prism; and a second total reflector is arranged between a reflection emergent end of the polarization beam splitter prism and an incidence end of the white glass sheet. The thin-cell Doppler-broadening-free absorption spectrum frequency regulator provided by the invention is applicable to fields such as researches of high-resolution molecule and atomic spectrum, laser interference measurement, atom cooling and trapping, optical fiber communication, frequency selection, optical data storage and the like.

Description

technical field [0001] The invention relates to laser frequency stabilization technology, in particular to a thin pool non-Doppler broadening absorption spectrum frequency stabilization device. Background technique [0002] As an important symbol of modern science and technology, laser has been widely used in many fields such as culture and entertainment, industrial application and scientific research. Frequency stabilization is one of the important characteristics of lasers, which makes laser frequency stabilization technology more important. The stabilization of laser frequency is of great significance to the study of high-resolution molecular and atomic spectroscopy, laser interferometry, cooling and trapping atoms, optical fiber communication, and frequency-selective optical data storage. Laser frequency stabilization technology is a highly integrated product of laser physics, spectroscopy and electronics, which develops with the development of laser applications. Lase...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing laser frequency stabilization technology is affected by Doppler broadening and its laser frequency stability is limited, the present invention provides a thin cell non-Doppler broadening absorption spectrum frequency stabilization device

Images