Heterodyne frequency calibration of high resolution cesium spectra using diode lasers

被引：6

作者：

Gerginov, V ^{[1
]}

Tanner, CE ^{[1
]}

机构：

[1] Univ Notre Dame, Coll Sci, Dept Phys, Notre Dame, IN 46556 USA

来源：

OPTICS COMMUNICATIONS | 2003年 / 216卷 / 4-6期

基金：

美国国家科学基金会;

关键词：

high resolution spectroscopy; diode lasers; optical feedback; heterodyne; laser stabilization;

D O I：

10.1016/S0030-4018(02)02304-0

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We describe our system for frequency calibrating high resolution laser induced fluorescence spectra. The system utilizes two diode lasers that are spectrally narrowed with optical feedback from external resonators. One laser acts as a reference and is locked to a cesium transition with an external resonator containing a vapor cell in a Faraday filter configuration. Additional electronic feedback fixes the length of the resonator. The second laser receives its feedback from a confocal optical cavity and has the capability of scanning over several hundred megahertz. A portion of the scanning-laser output excites cesium atoms in a thermal atomic beam producing a fluorescence signal. Portions of each laser output are combined on a fast photo diode that produces a heterodyne signal. A counter reads the RF beat note between the laser frequencies and provides the frequency calibration. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：391 / 399

页数：9

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