Theoretical demonstration of all-optical switchable and tunable UWB doublet pulse train generator utilizing SOA wavelength conversion and tunable time delay  

作　　者：Zhefeng HU Jianhui XU Min HOU 

机构地区：[1]School of Communication and Information Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China

出　　处：《Frontiers of Optoelectronics》2017年第2期180-188,共9页光电子前沿（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China （Grant Nos. 61501088, 61307088, 61505020, and 61675040）, the Joint Funds of the National Natural Science Foundation of China （Grant No. U1633129）, the Science and Technology Planning Project of Sichuan Province （No. MZ2016036）, and the Fundamental Research Funds for the Central Universities （Nos. ZYGX2016J003, ZYGX2016J005, and ZYGX2016J009）.

摘　　要：An all-optical ultrawide band （UWB） doublet pulse train signal generator is proposed and theoretically simulated by utilizing an inverse wavelength conversion base on the cross-gain modulation （XGM） effect in a semiconductor optical amplifier （SOA） and controllable time delay in two optical delay lines （ODLs）. The proposed scheme is not only optically switchable in the polarity of pulse by switching the polarity of input pulse but also tunable in signal pulse width and radiofrequency （RF） spectrum by tuning the ODLs.An all-optical ultrawide band （UWB） doublet pulse train signal generator is proposed and theoretically simulated by utilizing an inverse wavelength conversion base on the cross-gain modulation （XGM） effect in a semiconductor optical amplifier （SOA） and controllable time delay in two optical delay lines （ODLs）. The proposed scheme is not only optically switchable in the polarity of pulse by switching the polarity of input pulse but also tunable in signal pulse width and radiofrequency （RF） spectrum by tuning the ODLs.

关 键 词：microwave photonics ultrawide band（UWB） TUNABLE switchable semiconductor optical ampli-fier （SOA） tunable time delay 

分 类 号：TN[电子电信]