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. 2014 Feb 4;4:3960. doi: 10.1038/srep03960

Figure 1. Simulation results of the first-order OD and the OHT.

Figure 1

(a) input Gaussian pulse with fixed FWHM of 24.52 ps; (b) the spectrum of the input Gaussian pulse (green dash line), the amplitude response of the defined filter (blue solid line) with 3-dB bandwidth tunable and the phase response of the defined filter (red dot line); (c) the deviations between the output waveform and the OD (blue circle) and the OHT (red square) as a function of the defined filter's 3-dB bandwidth, insets (c1–c3) show the output waveforms (red solid line) of the defined filter, ideal OD waveform (green dot line) and ideal OHT waveform (blue dash line) with different 3-dB bandwidths of the defined filter.