Details

Autor(en) / Beteiligte

• Vu, Thanh-Tung
• Maeda, Yoshitaka
• Aketagawa, Masato

Titel

Sinusoidal frequency modulation on laser diode for frequency stabilization and displacement measurement

Ist Teil von

• Measurement : journal of the International Measurement Confederation, 2016-12, Vol.94, p.927-933

Ort / Verlag

London: Elsevier Ltd

Erscheinungsjahr

2016

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• •Sinusoidal frequency modulation on a laser diode (LD) is evaluated.•Frequency stabilization of an LD to I2 absorption line near 633nm is attained.•A displacement measuring interferometer using the LD as light source is fabricated. 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 (I2) molecule near the wavelength of 633nm. 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.