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Distance measurement by the wavelength shift of laser diode light

✍ Scribed by Kikuta, Hisao ;Iwata, Koichi ;Nagata, Ryo

Book ID
115334471
Publisher
The Optical Society
Year
1986
Tongue
English
Weight
641 KB
Volume
25
Category
Article
ISSN
1559-128X

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The coherence length of a single mode laser diode (LD) can reach more than 10 m. It allows the application of this source of light to interferometric distance measurement, with a measurement range of several meters. However, the LD's wavelength tunability, which is a result of the dependence of the