用于原子捕获的基于声光调制器的稳频二极管激光系统。

Acousto-optic modulator based frequency stabilized diode laser system for atom trapping.

作者信息

McDowall Peter D, Andersen Mikkel F

机构信息

Jack Dodd Center for Quantum Technology, Department of Physics, University of Otago, Dunedin 9016, New Zealand.

出版信息

Rev Sci Instrum. 2009 May;80(5):053101. doi: 10.1063/1.3125029.

DOI:10.1063/1.3125029

PMID:19485486

Abstract

We report on an inexpensive commercial laser diode stabilized to the D(2)-line in rubidium using a simple scheme. The linewidth was reduced to 1.3 MHz without an external cavity, making it suitable for laser cooling and trapping. The system is very robust and the laser frequency can be changed rapidly (within 51 micros) while the laser remains in lock. The frequency of the locked laser drifts less than 850 kHz peak-to-peak over 25 h. We demonstrate laser cooling and trapping using our system.

摘要

我们报告了一种使用简单方案将廉价商用激光二极管稳定到铷原子D(2)线的方法。在没有外腔的情况下，线宽减小到了1.3 MHz，使其适用于激光冷却和俘获。该系统非常稳定，并且在激光保持锁定状态时，激光频率可以快速改变（在51微秒内）。锁定激光的频率在25小时内峰峰值漂移小于850 kHz。我们展示了使用我们的系统进行激光冷却和俘获。