Frequency control of DBR diode lasers at 1.08 micrometer and precision spectroscopy of helium

被引：44

作者：

Prevedelli, M

Cancio, P

Giusfredi, G

Pavone, FS

Inguscio, M

机构：

[1] EUROPEAN LAB NONLINEAR SPECT,I-50125 FLORENCE,ITALY

[2] IST NAZL FIS NUCL,SEZ FIRENZE,I-50125 FLORENCE,ITALY

[3] IST NAZL OTTICA,I-50125 FLORENCE,ITALY

来源：

OPTICS COMMUNICATIONS | 1996年 / 125卷 / 4-6期

关键词：

D O I：

10.1016/0030-4018(96)00053-3

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report difference frequency measurements on the spectrum of helium by phase-locking two DBR diode lasers at 1.08 mu m. A mirror terminated extended cavity is used for narrowing the laser linewidth to few hundred kHz. Phase-locking between two narrowed lasers is then achieved up frequency differences of 40 GHz. From the investigation of the 2(3)P helium multiplet we extract a preliminary value for the 2(3)P(0) - 2(3)P(1) fine structure splitting with an accuracy of 25 kHz, corresponding to 9 parts in 10(7).

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收藏

页码：231 / 236

页数：6

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