標題: Evaluation of the inherent ripple effects on the performance of an optical DQPSK signal generated by using only one MZM
作者: Peng, Wei-Ren
Chen, Jason (Jyehong)
Tsai, Shen-You
Tsao, Cheng
Chi, Sien
光電工程學系
Department of Photonics
關鍵字: Mach-Zehnder Modulator (MZM);optical differential quadrature phase shift keying (oDQPSK)
公開日期: 2006
摘要: We analytically computed the optical spectra and numerically evaluated the ripple impacts on the performance of an optical DQPSK signal generated by only one MZM. We confirmed the necessity of a pulse carver to this kind of signal. The tolerances to the timing mismatch between the data and the pulse carver were analyzed among different duty-cycles. The conventional DQPSK signal generated by two parallel DPSK modulators were also analyzed for comparisons. We also provided some experimental results to demonstrate the possibility of the one-MZM scheme and the necessity of a pulse carver in terms of the clearly opened demodulated eyes.
URI: http://hdl.handle.net/11536/17499
ISBN: 978-0-7803-9789-7
期刊: 2006 International Conference on Photonics in Switching, Proceedings
起始頁: 267
結束頁: 269
Appears in Collections:Conferences Paper