A Novel Approach to All-Optical Generation of Ultra-Wideband Signals |
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| Authors: | Peng Xiang Xiaoping Zheng Hanyi Zhang Yuquan Li Jintian Xiong |
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| Institution: | 1. State Key Laboratory on Integrated Optics/Tsinghua National Laboratory for Information Science and Technology, Department of Electronic Engineering , Tsinghua University , Beijing , China;2. College of Communication Engineering, PLA University of Science and Technology , Nanjing , China;3. State Key Laboratory on Integrated Optics/Tsinghua National Laboratory for Information Science and Technology, Department of Electronic Engineering , Tsinghua University , Beijing , China;4. College of Communication Engineering, PLA University of Science and Technology , Nanjing , China |
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| Abstract: | Abstract The generation of ultra-wideband signals in the optical domain is highly desirable for ultra-wideband-over-fiber systems, which has recently become a topic of interest. In this article, a novel and simple approach to achieve all-optical generation of ultra-wideband signals is proposed, which is based on delaying and superimposing optical Gaussian pulses with opposite polarities. The proposed system is capable of generating both ultra-wideband monocycle and doublet pulses, and the polarity of the generated ultra-wideband monocycle pulses can be fast-switched to implement pulse polarity modulation with the required bit pattern. A model to describe the proposed system is developed, and the generation of ultra-wideband signals is demonstrated with simulations and a proof-of-concept experiment. |
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| Keywords: | optical delay line polarization modulator pulse polarity modulation ultra-wideband ultra-wideband-over-fiber |
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