Photonics Research, Volume. 4, Issue 1, 0013(2016)
High-precision group-delay dispersion measurements of optical fibers via fingerprint-spectral wavelength-to-time mapping
Fig. 1. Schematic experimental configuration for the group-delay dispersion measurement of optical fibers via fingerprint-spectral wavelength-to-time mapping.
Fig. 2. (a) Wavelength spectrum of input pulses into the test fiber. (b) Time waveform of the input pulses corresponding to an impulsive time response of the measurement system. The inset figure shows autocorrelation traces of the input pulses. The blue curve is a measured trace, whereas the red curve is the squared magnitude of the inverse Fourier transformation of the input power spectrum shown in (a).
Fig. 3. (a) Wavelength spectrum of output pulses from the test fiber. (b) Time waveform of the output pulse. The black sticks indicate peak and nadir positions.
Fig. 4. Fitting result of the least-squares method. The blue curve is a deconvolved waveform of the output waveform in Fig.
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Takashi Ito, Ondrej Slezak, Masahiro Yoshita, Hidefumi Akiyama, Yohei Kobayashi, "High-precision group-delay dispersion measurements of optical fibers via fingerprint-spectral wavelength-to-time mapping," Photonics Res. 4, 0013 (2016)
Received: Oct. 26, 2015
Accepted: Dec. 8, 2015
Published Online: Sep. 26, 2016
The Author Email: Takashi Ito (ito@issp.u?tokyo.ac.jp)