11 November 2008 All-optical UWB pulse generation and pulse shape modulation by using dual-in dual-out Mach-Zehnder Modulator
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Proceedings Volume 7136, Optical Transmission, Switching, and Subsystems VI; 71363W (2008) https://doi.org/10.1117/12.803954
Event: Asia-Pacific Optical Communications, 2008, Hangzhou, China
Abstract
In this paper, a novel method to generate both monocycle and doublet UWB pulses is demonstrated, where pulse shape modulation(PSM) can be easily implemented. Only two wavelengths and two modulators (one dual-in dual-out modulator) are applied to achieve PSM. The data driving the first modulator is set to be 250Mbit/s 107-1 pseudo-random bit sequence (PRBS). The 1GHz pulse pattern is synchronised with the data. The electrical spectrum of the signals processes the centre frequency of 4GHz and -10dB bandwidth of 5.9GHz. The fractional bandwidth is about 147.5%, which matches the FCC standard.
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Jie Yin, Kun Xu, Jianqiang Li, Hao Huang, Ye Zhang, Jian Wu, Xiaobin Hong, Jingtong Lin, "All-optical UWB pulse generation and pulse shape modulation by using dual-in dual-out Mach-Zehnder Modulator", Proc. SPIE 7136, Optical Transmission, Switching, and Subsystems VI, 71363W (11 November 2008); doi: 10.1117/12.803954; https://doi.org/10.1117/12.803954
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