Femtosecond frequency comb based distance measurement in air
نویسندگان
چکیده
منابع مشابه
Femtosecond frequency comb based distance measurement in air.
Interferometric measurement of distance using a femtosecond frequency comb is demonstrated and compared with a counting interferometer displacement measurement. A numerical model of pulse propagation in air is developed and the results are compared with experimental data for short distances. The relative agreement for distance measurement in known laboratory conditions is better than 10(-7). Ac...
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M. Cui [email protected] Optics Research Group, Department of Applied Sciences, Technical University Delft, Lorentzweg 1, 2628 CJ Delft, The Netherlands R. N. Schouten Optics Research Group, Department of Applied Sciences, Technical University Delft, Lorentzweg 1, 2628 CJ Delft, The Netherlands N. Bhattacharya Optics Research Group, Department of Applied Sciences, Technical University Delft, Lor...
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We describe absolute distance measurements performed by exploiting the frequency comb of a femtosecond laser as a precision wavelength ruler. The frequency comb is first stabilized to a Rb atomic clock of time standard. Then multi-wavelength interferometry integrated with a wavelength-scanning scheme is implemented by tuning an external cavity diode laser to the pre-selected frequency modes of ...
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We propose a new tunable laser source concept for multiple-wavelength interferometry, offering an unprecedented large choice of synthetic wavelengths with a relative uncertainty better than 10(-11) in vacuum. Two lasers are frequency stabilized over a wide range of frequency intervals defined by the frequency comb generated by a mode-locked fiber laser. In addition, we present experimental resu...
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As an alternative to the conventional method, which length measurement is performed as a function of the wavelength of a monochromatic laser source, we proposed the method of measuring arbitrary and absolute length using the pulse repetition interval of a femtosecond optical frequency comb (FOFC the national standard tool for measuring length in Japan). A helium-neon laser evaluation system was...
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ژورنال
عنوان ژورنال: Optics Express
سال: 2009
ISSN: 1094-4087
DOI: 10.1364/oe.17.009300