期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
An AWG-based 10 Gbit/s colorless WDM-PON system using a chirp-managed directly modulated laser
1
作者 Abdul Latif 余重秀 +4 位作者 忻向军 aftab husain Ashiq Hussain Abid Munir Yousaf Khan 《Optoelectronics Letters》 EI 2012年第5期372-375,共4页
We propose an arrayed waveguide grating(AWG)-based 10 Gbit/s per channel full duplex wavelength division multiplexing passive optical network(WDM-PON).A chirp managed directly modulated laser with return-to-zero(RZ) d... We propose an arrayed waveguide grating(AWG)-based 10 Gbit/s per channel full duplex wavelength division multiplexing passive optical network(WDM-PON).A chirp managed directly modulated laser with return-to-zero(RZ) differential phase shift keying(DPSK) modulation technique is utilized for downlink(DL) direction,and then the downlink signal is re-modulated for the uplink(UL) direction using intensity modulation technique with the data rate of 10 Gbit/s per channel.A successful WDM-PON transmission operation with the data rate of 10 Gbit/s per channel over a distance of 25 km without any optical amplification or dispersion compensation is demonstrated with low power penalty. 展开更多
关键词 Electric power transmission Frequency modulation Passive optical networks Wavelength division multiplexing
原文传递
Rayleigh backscattering minimization in single fiber colorless WDM-PON using intensity remodulation technique
2
作者 Yousaf Khan 余重秀 +3 位作者 忻向军 Amjad Ali aftab husain 刘博 《Optoelectronics Letters》 EI 2012年第5期380-383,共4页
The performance of colorless wavelength-division multiplexed passive optical network(WDM-PON) systems suffers from the transmission impairments mainly due to Rayleigh backscattering(RB).In this paper,we propose and de... The performance of colorless wavelength-division multiplexed passive optical network(WDM-PON) systems suffers from the transmission impairments mainly due to Rayleigh backscattering(RB).In this paper,we propose and demonstrate a single fiber colorless WDM-PON which enhances the tolerance to RB induced noise.The high extinction ratio in both return-to-zero(RZ)-shaped differential phase shift keying(DPSK) downstream(DS) data signal and intensity-remodulated upstream(US) data signal helps to improve the tolerance to RB induced noise.Simulation results show that downstream and upstream signals can achieve error-free performance at 10 Gbit/s with negligible penalty and improve the tolerance to RB induced noise over 25 km standard single-mode fiber. 展开更多
关键词 BACKSCATTERING Passive optical networks Single mode fibers
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部