Methods and evaluation of frequency aging in distributed-feedback laser diodes for rubidium atomic clocks

被引：31
|
作者：
Matthey, Renaud [1 ]
Affolderbach, Christoph [1 ]
Mileti, Gaetano [1 ]
机构：
[1] Univ Neuchatel, Lab Temps Frequence, CH-2000 Neuchatel, Switzerland
来源：
OPTICS LETTERS | 2011年 / 36卷 / 17期
基金：
瑞士国家科学基金会;
关键词：
STANDARD;
D O I：
10.1364/OL.36.003311
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Distributed-feedback laser diodes emitting at 780nm have been evaluated, with respect to the aging of the injection current required for reaching the rubidium D2 resonance line. Results obtained for lasers operating in air and in vacuum for 9 months are reported. When operated at constant temperature, the laser current required for emission at the wavelength of the desired atomic resonance is found to decrease by 50 to 80 mu A per month. The impact of this result on the lifetime and long-term performances of laser-pumped rubidium atomic clocks is discussed. (C) 2011 Optical Society of America
引用
收藏
页码：3311 / 3313
页数：3
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