FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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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
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Cite this article: |
En-Ming Xu, Zu-Xing Zhang, Pei-Li Li 2017 Chin. Phys. Lett. 34 014203 |
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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.
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Received: 06 September 2016
Published: 29 December 2016
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PACS: |
42.79.Hp
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(Optical processors, correlators, and modulators)
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42.30.Lr
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(Modulation and optical transfer functions)
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42.79.Ci
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(Filters, zone plates, and polarizers)
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Fund: Supported by the National Natural Science Foundation of China under Grant Nos 61302026, 61275067 and 61575034, and the Jiangsu Natural Science Foundation under Grant No BK2012432. |
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