1.28 Tb/s Wavelength Conversion for Polarisation Multiplexed RZ-DPSK Signals

Hu, Hao; Palushani, Evarist; Galili, Michael; Mulvad, Hans Christian Hansen; Clausen, A.T.; Oxenløwe, Leif Katsuo; Jeppesen, P.

doi:10.1364/ofc.2010.owp1

Cited by 4 publications

(5 citation statements)

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“…Note that the pulse probe spectrum can be further broadened (in Ref. 9, 140 nm spectrum width is achieved) and optical gate-based nonlinearity in HNLF has been demonstrated being operated at Tb/s [7], the proposed OSPC is expected to have a potential in the application of ultrafast signal processing even at Tb/s.…”

Section: Experiments and Resultsmentioning

confidence: 98%

“…Besides, the optical gate used in the OSPC is based on cross-phase modulation (XPM) in the highly nonlinear fiber (HNLF). It has the potential to operate at higher bitrates than SOA-based gate [5] and has the benefits of being less sensitive to the wavelength and polarization state of either control signal and pulse probe, which is more flexible compared to using four wave mixing in fiber [7] or second harmonic and difference frequency generation in a periodically poled lithium niotate [8]. Forty to 4 Â 10 Gb/s conversion is experimentally demonstrated and assessed.…”

Section: Introductionmentioning

confidence: 99%

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Product information platform based on STEP

Wang

Zhang

2009

Trans. Tianjin Univ.

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Abstract：The international standard ISO 10303, called STEP, has been used to deal with problems in the exchange of product models and the associated data between different computer-aided systems. A platform based on STEP for managing product information is presented. This platform includes three components: a product geometry information model, a product feature model and a product visualization model. An information extracting pattern, in which information is extracted from low level elements to high level ones, is adopted in establishing the product geometry information model. Relative elements lists are created based on the extracted product information. With the traversing of these lists, feature extraction methods are proposed, which take advantage of boundary information in product model and avoid the determination of concavity and convexity of curves. Information correlating to features is stored in a structure named as feature block and the product visualization model is founded from it. The feature block is used in the platform for information communication and synchronous update among the three components. Keywords：ISO 10303 standard; STEP; feature extraction; feature block With the development of technology, more attention is paid to the problems in conjunctions among information technology and others. In machining area, with the spreading and implementing of computer-aided systems (CAD/CAPP/CAM etc), data expands rapidly from product design to manufacture. Information exchange of CAD models between different CAD systems or between CAD and downstream application systems spans more phases and covers more details. In order to deal with problems in data exchange among different systems, a lot of research has been made and several standards have been developed. ISO 10303 of the International Organization for Standardization (ISO), known as STEP (standard for the exchange of product model data) [1] , was developed for model data exchange without loss of any information. It provides a mechanism that describes a complete and unambiguous product definition throughout the life cycle of a product and can reduce the total life cycle of the product dramatically [2][3][4][5] .The scope of ISO 10303 is electronic data exchange for any form of discrete product. It is part-oriented, partly because of the need to cater for all types of systems, including any one that may not be feature-based. Details of information supporting feature definitions are therefore presented in the exchange file, but they are not identified in any way as being associated with specific features [6] . The exchange file is not suitable in the downstream applications such as process planning and manufacture. Although many CAD vendors provide preprocessor and postprocessor with product exchange files, and several of them provide add-in functions of extracting features from product model, the extracted features are mostly design features and are stored in their own databases. Structures of these databases are different from each other. For this re...

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Section: Experiments and Resultsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Product information platform based on STEP

Wang

Zhang

2009

Trans. Tianjin Univ.

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“…At 640 Gbit/s, several essential network functionalities have already been demonstrated. This goes for add/drop multiplexing [19,20,29], wavelength conversion [17,18,30,31], Figure 16: Suggested Ethernet compatible optical TDM system. Each 10 GE packet is synchronised to the local master clock via a time-lensbased sync unit, essentially stretching or compressing the data packet to fit the individual bits to the local rep rate.…”

Section: Network Applicationsmentioning

confidence: 99%

Nonlinear Optical Signal Processing for Tbit/s Ethernet Applications

Oxenløwe

Galili

Mulvad

et al. 2012

International Journal of Optics

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Wereviewrecent experimental demonstrations of Tbaud optical signal processing. In particular, we describe a successful 1.28 Tbit/s serial data generation based on single polarization 1.28 Tbaud symbol rate pulses with binary data modulation (OOK) and subsequent all-optical demultiplexing. We also describe the first error-free 5.1 Tbit/s data generation and demodulation based on a single laser, where a 1.28 Tbaud symbol rate is used together with quaternary phase modulation (DQPSK) and polarization multiplexing. The 5.1 Tbit/s data signal is all-optically demultiplexed and demodulated by direct detection in a delay-interferometer-balanced detector-based receiver, yielding a BER less than 10−9. We also present subsystems making serial optical Tbit/s systems compatible with standard Ethernet data for data centre applications and present Tbit/s results using, for instance silicon nanowires.

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“…Besides, the optical gate used in the OSPC is based on cross‐phase modulation (XPM) in the highly nonlinear fiber (HNLF). It has the potential to operate at higher bitrates than SOA‐based gate [5] and has the benefits of being less sensitive to the wavelength and polarization state of either control signal and pulse probe, which is more flexible compared to using four wave mixing in fiber [7] or second harmonic and difference frequency generation in a periodically poled lithium niotate [8]. Forty to 4 × 10 Gb/s conversion is experimentally demonstrated and assessed.…”

Section: Introductionmentioning

confidence: 99%

Scalable optical serial to parallel converter based on prechirped pulse probe and cross‐phase modulation in fiber

Luo

Wang

et al. 2012

Micro & Optical Tech Letters

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We proposed and demonstrated 40–4 × 10 Gb/s optical serial to parallel converter based on the prechirped pulse probe and the fiber cross‐phase modulation‐based optical gate. We further show the potential to extend the demonstrated scheme to larger than 8 parallelization scale. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2108–2110, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27006

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1.28 Tb/s Wavelength Conversion for Polarisation Multiplexed RZ-DPSK Signals

Abstract: All-optical wavelength conversion for single wavelength channel 1.28-Tb/s polarisation multiplexed RZ-DPSK signals was demonstrated using a 100-m polarisation-maintaining highly nonlinear fibre (PM-HNLF). Error free performance for the converted signal was achieved.

Cited by 4 publications

References 5 publications

Product information platform based on STEP

Product information platform based on STEP

Nonlinear Optical Signal Processing for Tbit/s Ethernet Applications

Scalable optical serial to parallel converter based on prechirped pulse probe and cross‐phase modulation in fiber

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