Passive frequency and intensity stabilization of extended-cavity diode lasers
作者:
H. Talvitie,
A. Pietila¨inen,
H. Ludvigsen,
E. Ikonen,
期刊:
Review of Scientific Instruments
(AIP Available online 1997)
卷期:
Volume 68,
issue 1
页码: 1-7
ISSN:0034-6748
年代: 1997
DOI:10.1063/1.1147810
出版商: AIP
数据来源: AIP
摘要:
Studies are reported on frequency drifts in extended-cavity diode lasers caused by external effects, such as changes in temperature and air pressure. A laser system operating at 780 nm has been constructed utilizing low expansion materials and such mechanical structures that compensate for the external effects. By placing the laser system in a pressure-proof and temperature-controlled housing, a relative frequency stability of better than 10−10(40 kHz) is obtained for integration times of 10 &mgr;s to 10 s. The drift of the laser frequency caused by spectral aging of the diode laser is about 3 MHz/h. As a consequence of high passive stability, the variations of the laser intensity are also greatly reduced to a relative drift value of 4×10−5/h. ©1997 American Institute of Physics.
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