Lu Zhijia, Wang Xianbin, Li Yuping, et al. Performance analysis of modified optical duobinary in two different implementation methods[J]. 2015,(2):7-10.
Lu Zhijia, Wang Xianbin, Li Yuping, et al. Performance analysis of modified optical duobinary in two different implementation methods[J]. 2015,(2):7-10. DOI: 10.13756/j.gtxyj.2015.02.003.
This paper studies by simulation two kinds of modulation formats for modified optical duobinary.It first compares and analyzes the structures of the transmitters that generate these formats
and their code type and spectrum characteristics.Afterwards
it simulates the system transmission performances.The results show that when the residual dispersion is large
the modified type Ⅱ optical duobinary modulation format has better performance.However
within the incident optical power range of-13.2
2.8dBm
the modified type I optical duobinary modulation format has the highest Qvalue and hence the strongest resistance to nonlinear effects compared with the modified typeⅡ optical duobinary and NRZ modulation formats.