Tunable Single-Passband Microwave Photonic Filter Based on Sagnac Loop and Fabry–Perot Laser Diode
En-Ming Xu** , Zu-Xing Zhang, Pei-Li Li
School of Opto-Electronic Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023
Abstract ：A tunable single-passband microwave photonic filter is proposed and demonstrated, based on a laser diode (LD) array with multiple optical carriers and a Fabry–Perot (F-P) laser diode. Multiple optical carriers in conjunction with the F-P LD will realize a filter with multiple passbands. By adjusting the wavelengths of the multiple optical carriers, multiple passbands are merged into a single passband with a broadened bandwidth. By varying the number of the optical carrier, the bandwidth can be adjusted. The central frequency can be tuned by adjusting the wavelength of the multiple optical carriers simultaneously. A single-passband filter implemented by two optical carriers is experimentally demonstrated.
收稿日期: 2016-09-06
出版日期: 2016-12-29
:
42.79.Hp
(Optical processors, correlators, and modulators)
42.30.Lr
(Modulation and optical transfer functions)
42.79.Ci
(Filters, zone plates, and polarizers)
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