The authors neglected to cite some of the previous studies related to Fourier Transformation in the Introduction section of this Article1,2,3,4. These additional references are listed below as references 1,2,3,4 and should appear in the text as below.
“This concept was first introduced by Azana et al. for real-time Fourier transformation9, where group-velocity dispersion (GVD) directly stretched spectra in the time domain. After wavelength-to-time mapping, the spectrum can be captured by a single-pixel detector and a real-time oscilloscope.”
should read
“Earlier work on real-time Fourier transformation has been demonstrated by Tong1, Bhushan2 and Azana9 where group-velocity dispersion (GVD) directly stretched spectra in the time domain. After wavelength-to-time mapping, the spectrum can be captured by a single-pixel detector and a real-time oscilloscope. Its first demonstration in applying DFT spectroscopy3 was not as practical until the introduction of optical amplification as in ADFT4.”
References
Tong, Y. C., Chan, L. Y. & Tsang, H. K. Fibre dispersion or pulse spectrum measurement using a sampling oscilloscope. Electron. Lett 33, 983–985 (1997).
Bhushan, A. S., Coppinger, F. & Jalali, B. Time-stretched analogue-to-digital conversion. Electron. Lett. 34, 839–841 (1998).
Kelkar, P. V., Coppinger, F. Bhushan, A. S. & Jalali, B. Time-domain optical sensing. Electron. Lett 35, 1661–1662 (1999).
Chou, J., Boyraz, O. Solli, D. R. & Jalali, B. Femtosecond real-time single-shot digitizer. Applied Physics Letters 91, 161105 (2007).
Godin, T. et al. Real time noise and wavelength correlations in octave-spanning supercontinuum generation. Opt. Express 21, 18452–18460 (2013).
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The online version of the original article can be found at 10.1038/srep02064
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Zhang, C., Xu, J., Chui, P. et al. Correction: Corrigendum: Parametric spectro-temporal analyzer (PASTA) for real-time optical spectrum observation. Sci Rep 4, 5692 (2014). https://doi.org/10.1038/srep05692
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DOI: https://doi.org/10.1038/srep05692
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