We propose a new scheme to physically realize the short-time Fourier transform (STFT) of chirped optical pulse using time-lens array that enables us to get time-frequency representation without using FFT algorithm. The time-lens based upon the four-wave mixing is used to perform the process of temporal Fourier transformation. Pump pulse is used for both providing the quadratic phase and being the window function of STFT. The idea of STFT is physically realized in our scheme. Simulations have been done to investigate performance of the time-frequency representation scheme (TFRS) in comparison with STFT using FFT algorithm. Optimal measurement of resolution in time and frequency has been discussed.
Time-frequency representation measurement based on temporal Fourier transformation / Sun, Y.; Xiao, S.; Hao, S.; Zhao, X.; Xiong, Y.; Liu, S.. - In: OPTICS COMMUNICATIONS. - ISSN 0030-4018. - 376(2016), pp. 86-91. [10.1016/j.optcom.2016.05.017]
Titolo: | Time-frequency representation measurement based on temporal Fourier transformation | |
Autori: | SUN, YIFAN (Primo) | |
Data di pubblicazione: | 2016 | |
Rivista: | ||
Citazione: | Time-frequency representation measurement based on temporal Fourier transformation / Sun, Y.; Xiao, S.; Hao, S.; Zhao, X.; Xiong, Y.; Liu, S.. - In: OPTICS COMMUNICATIONS. - ISSN 0030-4018. - 376(2016), pp. 86-91. [10.1016/j.optcom.2016.05.017] | |
Handle: | http://hdl.handle.net/11573/1559903 | |
Appartiene alla tipologia: | 01a Articolo in rivista |
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