Edge-triggered ultra-wideband signal over fiber system using dual-parallel Mach-Zehnder modulator

Ying Zhao; Xiaoping Zheng; Hanyi Zhang; Bingkun Zhou

doi:10.1117/12.850097

25 November 2009 Edge-triggered ultra-wideband signal over fiber system using dual-parallel Mach-Zehnder modulator

Ying Zhao, Xiaoping Zheng, Hanyi Zhang, Bingkun Zhou

Proceedings Volume 7632, Optical Transmission Systems, Switching, and Subsystems VII; 76320F (2009) https://doi.org/10.1117/12.850097
Event: Asia Communications and Photonics, 2009, Shanghai, Shanghai , China

Abstract

The edge-triggered generation of baseband ultra-wideband (UWB) monocycle pulse using a dual-parallel Mach-Zehnder modulator is proposed and experimentally demonstrated. By setting three biases of the modulator at maximum, minimum and linear transmission points respectively, a monocycle UWB pulse sequence with the fractional bandwidth of ~ 155% is generated. The pulse sequence is differential encoded and the pulse bandwidth is determined by the transition time of the drive edge due to the nonlinear biases of the modulator. Furthermore, by using a basic digital signal processing (DSP) algorithm to calculate the bit error rate (BER), the transmission performance over a 25km-fiber is studied.

Citation Download Citation

Ying Zhao, Xiaoping Zheng, Hanyi Zhang, and Bingkun Zhou "Edge-triggered ultra-wideband signal over fiber system using dual-parallel Mach-Zehnder modulator", Proc. SPIE 7632, Optical Transmission Systems, Switching, and Subsystems VII, 76320F (25 November 2009); https://doi.org/10.1117/12.850097

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