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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Junwen Zhang Jianjun Yu Nan Chi Ze Dong Jianguo Yu Xinying Li Li Tao Yufeng Shao |
| Copyright Year | 1983 |
| Abstract | A novel digital signal processing (DSP) scheme for quadrature duobinary (QDB) spectrum shaped polarization multiplexed quadrature phase shift keying (PM-QPSK) based on multi-modulus blind equalizations (MMBE) is proposed and demonstrated with both simulation and experimental results. The key algorithms for this novel digital signal processing scheme include the cascaded multi-modulus algorithm (CMMA) for blind polarization de-multiplexing, multi-modulus QPSK partitioning frequency offset estimation (FOE) and two stage carrier phase recovery (CPR) with maximum likelihood phase estimation. The final signal is detected by maximum-likelihood sequence detection (MLSD) for data BER measurement. It shows that CMMA have better frequency response performance compared with CMA for noise compression. The performances of FOE and CPR are also investigated with different spectrum shaping bandwidth, group size and laser linewidth. Finally, the feasibility of the proposed digital signal processing scheme is demonstrated by the experiment of 112 Gb/s QDB spectrum shaped PM-QPSK signal with a 25 GHz bandwidth waveshaper for Nyquist WDM channels. |
| Sponsorship | IEEE Lasers and Electro-Optics Society Optical Society of America |
| Starting Page | 1073 |
| Ending Page | 1078 |
| Page Count | 6 |
| File Size | 1223437 |
| File Format | |
| ISSN | 07338724 |
| Volume Number | 31 |
| Issue Number | 7 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2013-01-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Phase shift keying Bandwidth Digital signal processing Bit error rate Optical filters Signal to noise ratio Optical noise QPSK partitioning Duobinary shaping multi-modulus equalizations PM-QPSK |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atomic and Molecular Physics, and Optics |
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