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【期刊论文】Vestigial-Sideband Payload for High-Speed All-Optical Label-Switching Network
陈宏伟, Hongwei Chen, Minghua Chen, Member, IEEE, Shizhong Xie, Senior Member, and Bingkun Zhou
JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 23, NO. 10, OCTOBER 2005,-0001,():
-1年11月30日
A novel vestigial-sideband (VSB) payload scheme is proposed for high-speed all-optical label-switching (AOLS) networks. The combination and separation of the VSB payload and the optical label is experimentally demonstrated, and the influences of the power-split ratio, time-delay interference, interferometric noise (IN), and wavelength difference between the payload and the label are analyzed. Simulation and experiment results show that this VSB payload scheme can highly reduce the channel bandwidth and it is easy to realize by using optical filters, so it is a potential technique to be used in optical networks with bit rate of 40 Gb/s.
All-optical label switching (, AOLS), , label, optical networks, payload, vestigial sideband
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【期刊论文】UWB monocycle pulse generation by optical polarisation time delay method
陈宏伟, H. Chen, M. Chen, C. Qiu, J. Zhang and S. Xie
ELECTRONICS LETTERS 26th April 2007 Vol. 43 No. 9,-0001,():
-1年11月30日
A novel method to generate ultra-wideband (UWB) monocycle pulses based on birefringence time delay in polarisation-maintaining fibre (PMF) is proposed and experimentally demonstrated. Two polarityreverse pulses are generated by polarisation modulation using a single phase modulator. They are delayed in PMF with enough time to generate monocycle pulse.
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【期刊论文】Ultrawide-band microwave amplification in the optical domain
陈宏伟, Hongwei Chen, Minghua Chen, Jian Zhang, MEMBER SPIE, and Shizhong Xie
July 2007/Vol. (7),-0001,():
-1年11月30日
Ultrawide-band microwave amplification in the optical domain is proposed that covers the frequency range from 10 MHz to 10 GHz with over 10 dB gain. A partly carrier-suppressed optically carried microwave signal is generated and amplified by erbium-doped fiber amplifier (EDFA) in this scheme.
microwave amplification, optical domain, erbiumdoped fiber amplifier (, EDFA),
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【期刊论文】PolSK Label Over VSB-CSRZ Payload Scheme in AOLS Network
陈宏伟, Hongwei Chen, Minghua Chen, , and Shizhong Xie
JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 25, NO. 6, JUNE 2007,-0001,():
-1年11月30日
A novel orthogonal modulation scheme of polarization-shift-keying label over vestigial sideband payload is proposed and experimentally demonstrated over a 43-Gb/s alloptical- label-switching transmission. With this scheme, a high extinction ratio of the label is reached, while a spectral efficiency of 0.8 b/s/Hz is achieved by weakening the imperfection of the high-speed pulse sequence in polarization modulation. Furthermore, this modulation scheme is relatively irrelevant with payload bit rate. The payload and label penalties after 80-km NZDSF fiber transmission and label erasure are 1.5 and 1 dB, respectively. The influence of filter center frequency offset is also investigated. Besides, a label rewriting method is introduced to simplify label processing in intermedia nodes. All these results show that this scheme can be a candidate technique for the next-generation optical network.
All-optical label switching (, AOLS), , label rewriting, polarization shift keying (, PolSK), , vestigial sideband (, VSB), -carrier suppressed return-to-zero (, CSRZ),
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陈宏伟, Hongwei Chen, Minghua Chen, Ciyuan Qiu, and Shizhong Xie
OPTICS LETTERS / Vol. 32, No. 9 / May 1, 2007,-0001,():
-1年11月30日
A novel polarization shift keying label rewriting scheme in 43 Gbit/s all-optical label switching network by synchronous polarization modulation is proposed and experimentally demonstrated. The old label can be changed to a new one by just one single step without a label erasure process, which can simplify the network node structure.
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