期刊
MEASUREMENT
卷 94, 期 -, 页码 927-933出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.measurement.2015.12.021
关键词
Frequency stabilization; Laser diode; Iodine; Absorption; Homodyne interferometer
资金
- Grants-in-Aid for Scientific Research [26289015, 15K13844] Funding Source: KAKEN
In this paper, we propose the sinusoidal frequency modulation on a laser diode (LD) to achieve both frequency stabilization of the LD and displacement measurement with a homodyne interferometer. The central frequency of the LD is stabilized to a Doppler broadened absorption line of iodine (I-2) molecule near the wavelength of 633 nm. The frequency of the LD is modulated across the absorption line and synchronous detection is utilized to detect the absorption signal. A simple and low-cost homodyne displacement-measuring interferometer can be constructed that can attain high measurement resolution. (C) 2015 Elsevier Ltd. All rights reserved.
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