5 October 2012 Impact of filter shape and bandwidth on terabit polarization-multiplexed quadrature phase-shift keying transmission with baud-rate spacing
Author Affiliations +
Abstract
The impact of the optical multiplexing/demultiplexing filter on ultradense wavelength-division multiplexing transmission based on polarization-multiplexed quadrature phase-shift keying (PM-QPSK) modulation at the Nyquist spectral efficiency limit is studied through simulations. We analyze 10×111  Gbit/s PM-QPSK systems with baud-rate channel spacing for both back-to-back and long-haul nonlinear transmission cases. We show that, although a higher-order filter generally leads to better system performance at the optimal filter bandwidth, this benefit comes at the cost of reduced tolerance to variations in filter bandwidth and center-frequency shifts.
© 2012 Society of Photo-Optical Instrumentation Engineers (SPIE)
Xiaogang Yi, Yan Li, Jian Wu, Wei Li, Xiaobin Hong, Hongxiang Guo, Yong Zuo, Jintong Lin, "Impact of filter shape and bandwidth on terabit polarization-multiplexed quadrature phase-shift keying transmission with baud-rate spacing," Optical Engineering 51(10), 105005 (5 October 2012). https://doi.org/10.1117/1.OE.51.10.105005 . Submission:
JOURNAL ARTICLE
5 PAGES


SHARE
Back to Top