A compact and robust magneto-optical trap for atom interferometry based on free space optical bench technology

Jie Guo; Debin Pan; Yuan Yao; Yuan Zhao; Siqian Ma; Jixun Liu; Chao Zhou; Haicen Mao

doi:10.1117/12.2585481

4 December 2020 A compact and robust magneto-optical trap for atom interferometry based on free space optical bench technology

Jie Guo, Debin Pan, Yuan Yao, Yuan Zhao, Siqian Ma, Jixun Liu, Chao Zhou, Haicen Mao

Author Affiliations +

Proceedings Volume 11617, International Conference on Optoelectronic and Microelectronic Technology and Application; 116173M (2020) https://doi.org/10.1117/12.2585481
Event: International Conference on Optoelectronic and Microelectronic Technology and Application, 2020, Nanjing, China

Abstract

The high-precision gravity measurements of cold atom experiments puts highly demands on the design and qualification of magneto-optical trap. We present a new modular magneto-optical trap for the cooling and manipulation of rubidium atom interferometry based on free space optical bench technology, which has been developed for a portable atomic inertial sensor. The setup consists of an integrated cooling laser injecting module, a free space bench module, an integrated Raman laser injecting module and a reflecting mirror attached to a single tri-axial accelerometer. The traditional magneto-optical trap includes 3 pairs of commercial cooling laser injecting lens, which are hard to assembled together in 3 mutually perpendicular directions and intersected at a common point. This paper introduces a new free space bench method to meet the angle and position requirements of magneto-optical trap. The vertical angle error of each pair of Cooling beams and intersection coincidence distance can be controlled in a small range. And the free space bench module is easy to control the parameters of laser beams, such as power and polarization. Theoretical analysis and experimental results show that the new modular magneto-optical trap is more reliable and robust in comparison with traditional MOT.

Citation Download Citation

Jie Guo, Debin Pan, Yuan Yao, Yuan Zhao, Siqian Ma, Jixun Liu, Chao Zhou, and Haicen Mao "A compact and robust magneto-optical trap for atom interferometry based on free space optical bench technology", Proc. SPIE 11617, International Conference on Optoelectronic and Microelectronic Technology and Application, 116173M (4 December 2020); https://doi.org/10.1117/12.2585481

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