Title :
Edge-triggered ultra-wideband signal over fiber system using dual-parallel Mach-Zehnder modulator
Author :
Zhao, Ying ; Zheng, Xiaoping ; Zhang, Hanyi ; Zhou, Bingkun
Author_Institution :
State Key Laboratory on Integrated Optoelectronics, Tsinghua National Laboratory for Information Science and Technology (TNList), Department of Electronic Engineering, Tsinghua University, Beijing 100084, 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.
Keywords :
Bandwidth; Digital signal processing; Optical fiber communication; Optical fiber polarization; Optical pulse generation; Optical pulses; Pulse amplifiers; Pulse generation; Pulse modulation; Ultra wideband technology; Optical communication; UWB-over-fiber system; Ultra-wideband monocycle pulse;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2009 Asia
Conference_Location :
Shanghai, China
Print_ISBN :
978-1-55752-877-3
Electronic_ISBN :
978-1-55752-877-3
