The Effect of Narrow Band-pass Filters Group-delay Ripples on WDM Optical Communication Systems
We have investigated the effect of narrow band-pass filters group delay ripples on die 10 Gbit/s amplitude-shift-keying non-retum-to-zero (ASK_NRZ) and differential-phase-shift-keying non-return-to-zero (DPSK_NRZ) wavelength-division-multiplexing (WDM) optical communication systems, which support the huge capacity in the information transmission and display backbone networks. For both ASK and DPSK, there is a peak at a ripple frequency close to the signal data rate in the EOP (eye-opening penally) vis Frequency of Ripple curve. The EOP of DPSK_NRZ is better than that of ASK_NRZ in the higher ripple frequency region. Through numerical simulation, its found that the ripple amplitude basically determines the system performance. These results will be helpful to design the large-scale transmission systems and define such narrow band-pass filter design parameters.
Narrow Band-pass Filter Group-delay Ripple WDM Optical Communication Signal Distortion
Rongjun Zhang Yiming Chen Yuxiang Zheng Liangyao Chen
State Key Lab. For Advanced Photonics Materials and Devices,Department of Optical Science and Engineering,Fudan University, Shanghai 200433, China
国际会议
上海
英文
2093-2096
2007-03-12（万方平台首次上网日期，不代表论文的发表时间）