Pub Date : 2014-12-18DOI: 10.1109/ICOCN.2014.6987152
Song Feng, Ren-ke Jiang, Yong Gao
Based on SiGe-OI (Silicon Germanium on Insulator) material, SiGe-OI electro-optic modulator is established, and PIN electrical modulation structure has been researched. The carrier injection concentration of electro-optical modulator with structure parameters, including the doping concentration of active region, the width of active region, the width between active region and waveguide, Ge content and the other parameters are analyzed, and the device structure parameters are optimized. Compared with SOI (Silicon on Insulator) electro-optic modulator injection concentration, SiGe-OI electro-optic modulator has higher carrier injection efficiency at the same modulation conditions. Accordingly, modulation voltage and modulation power can be effectively reduced.
基于SiGe-OI (Silicon Germanium on Insulator)材料，建立了SiGe-OI电光调制器，并研究了PIN电调制结构。分析了电光调制器载流子注入浓度随结构参数的变化，包括有源区掺杂浓度、有源区宽度、有源区与波导之间宽度、Ge含量等参数，并对器件结构参数进行优化。与SOI (Silicon on Insulator)电光调制器注入浓度相比，在相同调制条件下，SiGe-OI电光调制器具有更高的载流子注入效率。因此，可以有效地降低调制电压和调制功率。
{"title":"Research on carrier injection efficiency of SiGe-OI electro-optic modulator","authors":"Song Feng, Ren-ke Jiang, Yong Gao","doi":"10.1109/ICOCN.2014.6987152","DOIUrl":"https://doi.org/10.1109/ICOCN.2014.6987152","url":null,"abstract":"Based on SiGe-OI (Silicon Germanium on Insulator) material, SiGe-OI electro-optic modulator is established, and PIN electrical modulation structure has been researched. The carrier injection concentration of electro-optical modulator with structure parameters, including the doping concentration of active region, the width of active region, the width between active region and waveguide, Ge content and the other parameters are analyzed, and the device structure parameters are optimized. Compared with SOI (Silicon on Insulator) electro-optic modulator injection concentration, SiGe-OI electro-optic modulator has higher carrier injection efficiency at the same modulation conditions. Accordingly, modulation voltage and modulation power can be effectively reduced.","PeriodicalId":364683,"journal":{"name":"2014 13th International Conference on Optical Communications and Networks (ICOCN)","volume":"266 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133760851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A perpendicular multi-layer (PML) architecture with multiple controllers and a dynamic orchestra plane (DOP) for multi-domain software defined optical networks is proposed in this paper. Cross-domain services with on-demand bandwidth can be deployed via unified interfaces provided by DOP. Practical capture of signal processing and emulation results are presented.
{"title":"Perpendicular multi-layer architecture among multi-domain software defined optical networks","authors":"Yadi Cui, Yangxiao Wang, Shanguo Huang, Yiming Yu, Qiang Wang, Dajiang Wang, Jiayu Wang, Xiaobing Niu","doi":"10.1109/ICOCN.2014.6987151","DOIUrl":"https://doi.org/10.1109/ICOCN.2014.6987151","url":null,"abstract":"A perpendicular multi-layer (PML) architecture with multiple controllers and a dynamic orchestra plane (DOP) for multi-domain software defined optical networks is proposed in this paper. Cross-domain services with on-demand bandwidth can be deployed via unified interfaces provided by DOP. Practical capture of signal processing and emulation results are presented.","PeriodicalId":364683,"journal":{"name":"2014 13th International Conference on Optical Communications and Networks (ICOCN)","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133937328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-12-18DOI: 10.1109/ICOCN.2014.6987097
Xiaolu Zhang, Hanfei Sun, Chao Pan, Xu Zhou, Y. Wang, Junhua Qiu, Hengjian Tang, Yu Zheng, Xiaohan Sun
With the development of the Internet of Things, the concept of Integrated Sensing Network (ISN) and its functional architecture are proposed. The core functions of the sensing stratum, the transport stratum, the service stratum and the management platform as well as a data flow model for ISN are discussed. The reference architecture and the model provide a common basis for the research and development for the purpose of ISN.
{"title":"The functional architecture of integrated sensing network","authors":"Xiaolu Zhang, Hanfei Sun, Chao Pan, Xu Zhou, Y. Wang, Junhua Qiu, Hengjian Tang, Yu Zheng, Xiaohan Sun","doi":"10.1109/ICOCN.2014.6987097","DOIUrl":"https://doi.org/10.1109/ICOCN.2014.6987097","url":null,"abstract":"With the development of the Internet of Things, the concept of Integrated Sensing Network (ISN) and its functional architecture are proposed. The core functions of the sensing stratum, the transport stratum, the service stratum and the management platform as well as a data flow model for ISN are discussed. The reference architecture and the model provide a common basis for the research and development for the purpose of ISN.","PeriodicalId":364683,"journal":{"name":"2014 13th International Conference on Optical Communications and Networks (ICOCN)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126312230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-12-18DOI: 10.1109/ICOCN.2014.6987096
Xiaojun Yu, Gaoxi Xiao, T. Cheng, D. Huang
Overlay IP/MPLS over WDM network is widely viewed as the most promising solution for supporting the next-generation optical Internet. The main challenge in such kind of networks typically comes from the limited information exchanges between its two layers. Though various algorithms and schemes have been proposed for traffic grooming in such overlay networks, to the best of our knowledge, there exists no systematic study for evaluating the impacts of limited information exchanges on network performance. This paper studies dynamic traffic grooming problem in overlay IP/MPLS over WDM networks. Specifically, we evaluate the impacts of the accuracy of WDM-layer link cost information and WDM-layer routing methods on the performance of overlay networks. Extensive simulation results show that i) having an appropriate link cost assignment strategy is of critical importance in deciding network performance; ii) the existence of inaccurate link cost information in overlay networks does significantly affect network performance, even when the link cost assignment strategy is carefully designed to enhance the tolerance to such inaccuracy; and iii) when subject to inaccurate link-state information, fixed and dynamic routing methods on WDM layer may not lead to significant differences in network performance.
{"title":"Impacts of link-cost and routing methods on overlay network performances for dynamic traffic grooming","authors":"Xiaojun Yu, Gaoxi Xiao, T. Cheng, D. Huang","doi":"10.1109/ICOCN.2014.6987096","DOIUrl":"https://doi.org/10.1109/ICOCN.2014.6987096","url":null,"abstract":"Overlay IP/MPLS over WDM network is widely viewed as the most promising solution for supporting the next-generation optical Internet. The main challenge in such kind of networks typically comes from the limited information exchanges between its two layers. Though various algorithms and schemes have been proposed for traffic grooming in such overlay networks, to the best of our knowledge, there exists no systematic study for evaluating the impacts of limited information exchanges on network performance. This paper studies dynamic traffic grooming problem in overlay IP/MPLS over WDM networks. Specifically, we evaluate the impacts of the accuracy of WDM-layer link cost information and WDM-layer routing methods on the performance of overlay networks. Extensive simulation results show that i) having an appropriate link cost assignment strategy is of critical importance in deciding network performance; ii) the existence of inaccurate link cost information in overlay networks does significantly affect network performance, even when the link cost assignment strategy is carefully designed to enhance the tolerance to such inaccuracy; and iii) when subject to inaccurate link-state information, fixed and dynamic routing methods on WDM layer may not lead to significant differences in network performance.","PeriodicalId":364683,"journal":{"name":"2014 13th International Conference on Optical Communications and Networks (ICOCN)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130735209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Facing with the huge P2P traffic challenge, network coding shows great advantages in improving system efficiency. This paper proposed a solution to integrate network coding into passive optical networks and compatible with the existing Ethernet passive optical network named NC-PON. To increase more efficiency, a software defined passive optical networks with network coding (SDNC-PON), which combines the software defined technology and network coding, was proposed to optimize the P2P traffic under different OLTs. The core idea of SDNC-PON is to change the owner-member relationship between OLTs and ONUs flexibly to achieve the maximum traffic benefit. The results of experimental platform and the simulations indicated that the proposed architecture is efficient and with network flexibility.
{"title":"Experimental evaluation of software defined passive optical network with network coding","authors":"Tonglu Guo, Shizong Zhang, Yangxiao Wang, Guojun Liu, Rentao Gu, Yuefeng Ji","doi":"10.1109/ICOCN.2014.6987111","DOIUrl":"https://doi.org/10.1109/ICOCN.2014.6987111","url":null,"abstract":"Facing with the huge P2P traffic challenge, network coding shows great advantages in improving system efficiency. This paper proposed a solution to integrate network coding into passive optical networks and compatible with the existing Ethernet passive optical network named NC-PON. To increase more efficiency, a software defined passive optical networks with network coding (SDNC-PON), which combines the software defined technology and network coding, was proposed to optimize the P2P traffic under different OLTs. The core idea of SDNC-PON is to change the owner-member relationship between OLTs and ONUs flexibly to achieve the maximum traffic benefit. The results of experimental platform and the simulations indicated that the proposed architecture is efficient and with network flexibility.","PeriodicalId":364683,"journal":{"name":"2014 13th International Conference on Optical Communications and Networks (ICOCN)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131152564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A degree distribution mapping method of parity check matrix in irregular QC-LDPC based FSO communication is proposed. Before channel coding, use the mapping method to select the appropriate distribution of the parity check matrix corresponding to atmospheric channel estimation feedback. BER performance of the optimal distribution of the parity check matrix in different turbulence intensity has been made. Compared to old coding schemes without optimizing degree distribution, the new one have greatly improved the transmission performance.
{"title":"Degree distribution mapping method of parity check matrix in LDPC based FSO communication through atmospheric turbulence channel","authors":"Fei Xiao, Lijia Zhang, Bo Liu, Qi Zhang, Yongjun Wang, Jianglong Zheng, Qinghua Tian, Xiaoli Yin, X. Xin","doi":"10.1109/ICOCN.2014.6987132","DOIUrl":"https://doi.org/10.1109/ICOCN.2014.6987132","url":null,"abstract":"A degree distribution mapping method of parity check matrix in irregular QC-LDPC based FSO communication is proposed. Before channel coding, use the mapping method to select the appropriate distribution of the parity check matrix corresponding to atmospheric channel estimation feedback. BER performance of the optimal distribution of the parity check matrix in different turbulence intensity has been made. Compared to old coding schemes without optimizing degree distribution, the new one have greatly improved the transmission performance.","PeriodicalId":364683,"journal":{"name":"2014 13th International Conference on Optical Communications and Networks (ICOCN)","volume":"678 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122971276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-12-18DOI: 10.1109/ICOCN.2014.6987065
Lianyan Li, Baoli Cao, Xiangfei Chen
A low-cost cascade tunable semiconductor distributed feedback (DFB) laser is proposed based on the reconstruction equivalent chirp (REC) technique and experimentally demonstrated for the first time. It covers 9nm continuous tuning range by changing the temperature. The side mode suppression ratios are above 42dB over the tuning range. The current and temperature coefficients of wavelength tuning are 0.0124nm/mA and 0.0875nm/°C, respectively. The grating is fabricated by holographic exposure and conventional lithography, so the cost is very low. The results indicate that REC technique is promising to fabricate tunable DFB lasers which can meet the requirement of access networks. The tuning range can also be extended by using more sections.
{"title":"Demonstration of a low-cost cascade tunable semiconductor DFB laser","authors":"Lianyan Li, Baoli Cao, Xiangfei Chen","doi":"10.1109/ICOCN.2014.6987065","DOIUrl":"https://doi.org/10.1109/ICOCN.2014.6987065","url":null,"abstract":"A low-cost cascade tunable semiconductor distributed feedback (DFB) laser is proposed based on the reconstruction equivalent chirp (REC) technique and experimentally demonstrated for the first time. It covers 9nm continuous tuning range by changing the temperature. The side mode suppression ratios are above 42dB over the tuning range. The current and temperature coefficients of wavelength tuning are 0.0124nm/mA and 0.0875nm/°C, respectively. The grating is fabricated by holographic exposure and conventional lithography, so the cost is very low. The results indicate that REC technique is promising to fabricate tunable DFB lasers which can meet the requirement of access networks. The tuning range can also be extended by using more sections.","PeriodicalId":364683,"journal":{"name":"2014 13th International Conference on Optical Communications and Networks (ICOCN)","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130872737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We demonstrate a silicon 4×4 non-blocking Benes switch fabric consisting of three stages of tunable Mach-Zehnder interferometers. Measurements show that the insertion loss is around 10 dB and the crosstalk is below -10 dB over a 40 nm wide wavelength range.
{"title":"Broadband 4×4 non-blocking optical switch fabric based on Mach-Zehnder interferometers","authors":"Linjie Zhou, Liangjun Lu, Zuxiang Li, Jianping Chen","doi":"10.1109/ICOCN.2014.6987092","DOIUrl":"https://doi.org/10.1109/ICOCN.2014.6987092","url":null,"abstract":"We demonstrate a silicon 4×4 non-blocking Benes switch fabric consisting of three stages of tunable Mach-Zehnder interferometers. Measurements show that the insertion loss is around 10 dB and the crosstalk is below -10 dB over a 40 nm wide wavelength range.","PeriodicalId":364683,"journal":{"name":"2014 13th International Conference on Optical Communications and Networks (ICOCN)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131170246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-12-18DOI: 10.1109/ICOCN.2014.6987080
Jian Wang
We will review our recent progress in the fabrication of integrated nanophotonic devices and their applications in on-chip optical signal transmission and processing with advanced modulation formats. We will talk about both theoretical and experimental works on chip-scale optical signal transmission for photonic interconnections and various on-chip photonic signal processing functions (wavelength conversion, multiplexing/demultiplexing, data exchange, computing, coding/decoding).
{"title":"Nanophotonic devices for on-chip optical signal transmission and processing","authors":"Jian Wang","doi":"10.1109/ICOCN.2014.6987080","DOIUrl":"https://doi.org/10.1109/ICOCN.2014.6987080","url":null,"abstract":"We will review our recent progress in the fabrication of integrated nanophotonic devices and their applications in on-chip optical signal transmission and processing with advanced modulation formats. We will talk about both theoretical and experimental works on chip-scale optical signal transmission for photonic interconnections and various on-chip photonic signal processing functions (wavelength conversion, multiplexing/demultiplexing, data exchange, computing, coding/decoding).","PeriodicalId":364683,"journal":{"name":"2014 13th International Conference on Optical Communications and Networks (ICOCN)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132520481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-12-18DOI: 10.1109/ICOCN.2014.6987136
Dan Zhu, Huan Wu, S. Pan
Photonic switching of RF signals based on optical single sideband (OSSB) wavelength conversion using a semiconductor optical amplifier (SOA) for radio-over-fiber applications is proposed and demonstrated. The scheme realizes OSSB signal generation simultaneously with the photonic microwave switching based on self-phase modulation (SPM), cross-gain modulation (XGM) and four-wave mixing (FWM) effects in the SOA. Photonic switching of a 50-Mbaud 16 QAM signal centered at 20 GHz is experimentally realized, and an OSSB modulated signal with a sideband suppression ratio of 22.47 dB is generated.
{"title":"Photonic switching of RF signals based on optical single sideband wavelength conversion in a semiconductor optical amplifier","authors":"Dan Zhu, Huan Wu, S. Pan","doi":"10.1109/ICOCN.2014.6987136","DOIUrl":"https://doi.org/10.1109/ICOCN.2014.6987136","url":null,"abstract":"Photonic switching of RF signals based on optical single sideband (OSSB) wavelength conversion using a semiconductor optical amplifier (SOA) for radio-over-fiber applications is proposed and demonstrated. The scheme realizes OSSB signal generation simultaneously with the photonic microwave switching based on self-phase modulation (SPM), cross-gain modulation (XGM) and four-wave mixing (FWM) effects in the SOA. Photonic switching of a 50-Mbaud 16 QAM signal centered at 20 GHz is experimentally realized, and an OSSB modulated signal with a sideband suppression ratio of 22.47 dB is generated.","PeriodicalId":364683,"journal":{"name":"2014 13th International Conference on Optical Communications and Networks (ICOCN)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124273391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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