Please use this identifier to cite or link to this item:
|Title:||Line coding to enhance the performance of 10-Gb/s CPFSK-ASK directly modulated signals|
|Citation:||Al-Qazwini, Z., Kim, H. (2010-04-12). Line coding to enhance the performance of 10-Gb/s CPFSK-ASK directly modulated signals. Optics Express 18 (8) : 8360-8366. ScholarBank@NUS Repository. https://doi.org/10.1364/OE.18.008360|
|Abstract:||The major drawback of frequency modulation (FM)-based directly modulated laser (DML) is its non-uniform FM response at low frequency range which gives rise to a severe pattern-dependent performance degradation. In this paper, we investigate the use of line coding to deplete the low-frequency spectral contents of the signal and thus to alleviate the degradation. We examine various line codes (8B/10B, 5B/6B, 7B/8B, 9B/10B, and 64B/66B) with continuous-phase frequency-shift keying/amplitude-shift keying (CPFSK/ASK) signals generated using a DML and a delay interferometer. Experimental demonstrations are performed with a long pseudorandom bit sequence length of 220-1 and the bandwidth expansion by each code is taken into consideration. The results show that among the five codes we tested, 9B/10B code outperforms the other codes in terms of receiver sensitivity an dispersion tolerance. We demonstrate successful transmission of 10-Gb/s CPFSK-ASK signals over 65-km standard single-mode fiber with a bandwidth expansion of only 11.1%. © 2010 Optical Society of America.|
|Source Title:||Optics Express|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Sep 21, 2018
WEB OF SCIENCETM
checked on Sep 11, 2018
checked on Jun 30, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.