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DOI码：10.1117/12.2605312

发表刊物：TWELFTH INTERNATIONAL CONFERENCE ON INFORMATION OPTICS AND PHOTONICS (CIOP 2021)

摘要：We propose and demonstrate a reconfigurable photonic fractional Fourier transformer (PFrFTer). A linear chirp light serves as the fractional Fourier transform (FrFT) kernel to rotate the time-frequency plane, forming an optical fractional Fourier domain (FrFD). The input signal is projected on the FrFD, and the FrFT of the signal is obtained. The order of the PFrFTer is reconfigurable and can be adjusted by changing the chirp rate of the light. In the experiment, we obtain the FrFT results of a typical linear frequency modulated wave (LFMW) with a bandwidth of 12 GHz at different orders based on the PFrFTer. By comparing these results with the digital FrFT calculation, it is found that the mean square error between them is less than 4 x10(-4), which confirms the effectiveness of the PFrFTer. Besides, we demonstrate a practical application of the reconfigurable PFrFTer: the absolute measurement of the chirp rate of an LFMW.

第一作者：Peng, Shaowen, Li, Shangyuan, Han, Guanyu, Xue, Xiaoxiao, Zheng, Xiaoping

论文类型：C

文献类型：Proceedings Paper

卷号：12057

ISSN号：0277-786X

是否译文：否