The Study of WDM Dispersion Compensated Soliton System

• Main Authors: Hong-Yu Chang, 張宏裕
• Other Authors: Jeng-Cherng Dung
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/77kwfb

碩士 === 國立東華大學 === 電機工程學系 === 94 === We take advantage of scheme dispersion compensated to compensating the optical soliton. The transmission properties of the optical soliton were observed by using method of numerical simulation in signal and full channel transmission system. In the transmission system, we made path-average dispersion that β2 is negative value and to achieve the condition for the optical soliton. The length of dispersion compensation was calculated with the channel at the same time. Furthermore, the optimum input signal lead to traveling signal is better for stable level of system and it can found with method for calculation of root-mean-square in different channel. For reduce ASE and noise-induced timing jitter, an in-line Fabry-port filter is inserted after every amplifier. We compared with filter bandwidth and power compensation rate for filter sharply reduce power of signal. The transmission performance is best When the filter bandwidth is 10 times and power compensation rate is 0.7 times. Finally, we observed variations of pulse width that full channel working and compared with single channel transmission performance in transmission. In the bit error rate is 10-9, the transmission distance arrive at between 19000 and 24000 km that the 10 Gbit/s for four single channel transmission system. The full channel transmission system working that the shortest transmission distance can arrive at 13500 km in all channel.