Experimental demonstration of distance measurement with a femtosecond frequency comb laser
نویسندگان
چکیده
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, Lorentzweg 1, 2628 CJ Delft, The Netherlands S.A. van den Berg NMi Van Swinden Laboratory, Thijsseweg 11, 2629 JA Delft, The Netherlands
منابع مشابه
Long distance measurement with femtosecond pulses using a dispersive interferometer.
We experimentally demonstrate long distance measurements with a femtosecond frequency comb laser using dispersive interferometry. The distance is derived from the unwrapped spectral phase of the dispersed interferometer output and the repetition frequency of the laser. For an interferometer length of 50 m this approach has been compared to an independent phase counting laser interferometer. The...
متن کاملMode-resolved frequency comb interferometry for high-accuracy long distance measurement
Optical frequency combs have developed into powerful tools for distance metrology. In this paper we demonstrate absolute long distance measurement using a single femtosecond frequency comb laser as a multi-wavelength source. By applying a high-resolution spectrometer based on a virtually imaged phased array, the frequency comb modes are resolved spectrally to the level of an individual mode. Ha...
متن کاملRaman-induced Kerr-effect dual-comb spectroscopy.
We report on the first (to our knowledge) demonstration of nonlinear dual-frequency-comb spectroscopy. In multi-heterodyne femtosecond Raman-induced Kerr-effect spectroscopy, the Raman gain resulting from the coherent excitation of molecular vibrations by a spectrally narrow pump is imprinted onto the femtosecond laser frequency comb probe spectrum. The birefringence signal induced by the nonli...
متن کاملHigh-accuracy long-distance measurements in air with a frequency comb laser.
We experimentally demonstrate that a femtosecond frequency comb laser can be applied as a tool for long-distance measurement in air. Our method is based on the measurement of cross correlation between individual pulses in a Michelson interferometer. From the position of the correlation functions, distances of up to 50 m have been measured. We have compared this measurement to a counting laser i...
متن کاملAbsolute distance measurements based on the frequency comb of a femtosecond pulse laser
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 ...
متن کامل