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Experimental demonstration of 40 Gbit/s 2-to-4 photonic decoder based on delay interferometers and semiconductor optical amplifiers 基于延迟干涉仪和半导体光放大器的40 Gbit/s 2-to-4光子解码器的实验演示
SPIE/OSA/IEEE Asia Communications and Photonics Pub Date : 2010-12-08 DOI: 10.1117/12.888338
Yin Zhang, Jianji Dong, Fei Wang, Dexiu Huang, Xinliang Zhang
{"title":"Experimental demonstration of 40 Gbit/s 2-to-4 photonic decoder based on delay interferometers and semiconductor optical amplifiers","authors":"Yin Zhang, Jianji Dong, Fei Wang, Dexiu Huang, Xinliang Zhang","doi":"10.1117/12.888338","DOIUrl":"https://doi.org/10.1117/12.888338","url":null,"abstract":"A novel design of 2-to-4 photonic digital decoder has been proposed and experimentally demonstrated successfully at 40 Gbit/s. The scheme is implemented by employing differential phase shift keying (DPSK) signals, bit-inverse properties of delay interferometers (DIs), as well as cross gain modulation (XGM) of semiconductor optical amplifiers (SOAs). Correct logic results with high extinction ratios, clear and wide open eyes have been obtained simultaneously, without using any additional input beams. Furthermore, the great potential for hybrid or monolithic integration of delay interferometers and semiconductor optical amplifiers may make the scheme promising candidates for the future ultrafast photonic signal processing applications.","PeriodicalId":179447,"journal":{"name":"SPIE/OSA/IEEE Asia Communications and Photonics","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130981471","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}
引用次数: 0
Growth of n-doped GaAs nanowires by Au-assisted metalorganic chemical vapor deposition: effect of flux rates of n-type dopants 金辅助金属有机化学气相沉积法生长n掺杂砷化镓纳米线:n型掺杂剂通量速率的影响
SPIE/OSA/IEEE Asia Communications and Photonics Pub Date : 2010-12-08 DOI: 10.1117/12.888518
Jing-Wei Guo, Hui Huang, Minjia Liu, X. Ren, Shiwei Cai, Wen Wang, Qi Wang, Yongqing Huang, Xia Zhang
{"title":"Growth of n-doped GaAs nanowires by Au-assisted metalorganic chemical vapor deposition: effect of flux rates of n-type dopants","authors":"Jing-Wei Guo, Hui Huang, Minjia Liu, X. Ren, Shiwei Cai, Wen Wang, Qi Wang, Yongqing Huang, Xia Zhang","doi":"10.1117/12.888518","DOIUrl":"https://doi.org/10.1117/12.888518","url":null,"abstract":"N-doped GaAs nanowires (NWs) were grown on GaAs (111) B substrate by means of vapor-liquid-solid (VLS) mechanism in a metalorganic chemical vapor deposition (MOCVD) system. Two flux rates of n-type dopants used for GaAs NWs growth were researched. For comparison, undoped GaAs NWs were grown at the same conditions. It is found that all NWs are vertical to the substrate and no lateral growth occurs. The growth rate is proportional the flux rates of n dopant. It is observed that there is Gibbs-Thomson effect in doped NWs. Pure zinc blende structures without any stacking faults from bottom to top for all three samples were achieved.","PeriodicalId":179447,"journal":{"name":"SPIE/OSA/IEEE Asia Communications and Photonics","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127987435","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}
引用次数: 1
Design and analysis of the high-order mode dispersion compensating fiber 高阶模色散补偿光纤的设计与分析
SPIE/OSA/IEEE Asia Communications and Photonics Pub Date : 2010-12-08 DOI: 10.1117/12.891008
G. Lin, Xiaopeng Dong, Su Juan
{"title":"Design and analysis of the high-order mode dispersion compensating fiber","authors":"G. Lin, Xiaopeng Dong, Su Juan","doi":"10.1117/12.891008","DOIUrl":"https://doi.org/10.1117/12.891008","url":null,"abstract":"We discussed how to design the typical trip-clad high-order mode fiber (HOMF) profiles to achieve the required dispersion properties based on LP02 mode, to compensate all modern transmission fibers, without sacrificing other important properties, such as effective area. Finally, HOMF compensating 100km eLEAF fiber has been designed. Its dispersion at 1550nm is -1217ps/nm/km, and the relative dispersion slope (RDS) is 0.02nm-1. Only ~345m of HOMF is needed to achieve full dispersion and dispersion slope compensation of the span, while maintaining effective area above 52μm2 over the entire C-band.","PeriodicalId":179447,"journal":{"name":"SPIE/OSA/IEEE Asia Communications and Photonics","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125383706","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}
引用次数: 3
Radiographic, microcomputer tomography, and optical coherence tomography investigations of ceramic interfaces 陶瓷界面的射线照相、微机断层扫描和光学相干断层扫描研究
SPIE/OSA/IEEE Asia Communications and Photonics Pub Date : 2010-12-08 DOI: 10.1117/12.890272
C. Sinescu, M. Negruțiu, C. Ionita, F. Topala, E. Petrescu, R. Romînu, D. Pop, L. Marșavina, R. Negru, A. Bradu, M. Rominu, A. Podoleanu
{"title":"Radiographic, microcomputer tomography, and optical coherence tomography investigations of ceramic interfaces","authors":"C. Sinescu, M. Negruțiu, C. Ionita, F. Topala, E. Petrescu, R. Romînu, D. Pop, L. Marșavina, R. Negru, A. Bradu, M. Rominu, A. Podoleanu","doi":"10.1117/12.890272","DOIUrl":"https://doi.org/10.1117/12.890272","url":null,"abstract":"Imagistic investigation of the metal-ceramic crowns and fixed partial prostheses represent a very important issue in nowadays dentistry. At this time, in dental office, it is difficult or even impossible to evaluate a metal ceramic crown or bridge before setting it in the oral cavity. The possibilities of ceramic fractures are due to small fracture lines or material defects inside the esthetic layers. Material and methods: In this study 25 metal ceramic crowns and fixed partial prostheses were investigated by radiographic method (Rx), micro computer tomography (MicroCT) and optical coherence tomography (OCT) working in Time Domain, at 1300 nm. The OCT system contains two interferometers and one scanner. For each incident analysis a stuck made of 100 slices was obtain. These slices were used in order to obtain a 3D model of the ceramic interface. Results: RX and MicroCT are very powerful instruments that provide a good characterization of the dental construct. It is important to observe the reflections due to the metal infrastructure that could affect the evaluation of the metal ceramic crowns and bridges. The OCT investigations could complete the imagistic evaluation of the dental construct by offering important information when it is need it.","PeriodicalId":179447,"journal":{"name":"SPIE/OSA/IEEE Asia Communications and Photonics","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125549834","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}
引用次数: 3
Multi-channel non-return-to-zero format to return-to-zero format conversion with duplicate output 多通道非归零格式，以返回到零格式转换与重复输出
SPIE/OSA/IEEE Asia Communications and Photonics Pub Date : 2010-12-08 DOI: 10.1117/12.888399
Yu Yu, Xinliang Zhang, Dexiu Huang
{"title":"Multi-channel non-return-to-zero format to return-to-zero format conversion with duplicate output","authors":"Yu Yu, Xinliang Zhang, Dexiu Huang","doi":"10.1117/12.888399","DOIUrl":"https://doi.org/10.1117/12.888399","url":null,"abstract":"We demonstrate multi-channel regenerative non-return-to-zero (NRZ) to return-to-zero (RZ) conversions with tunable output pulse-width and single-to-dual function, using a phase modulator and an array waveguide grating (AWG). Transmission and bit error ratio (BER) show a good performance for the converted RZ signal compared with conventional one.","PeriodicalId":179447,"journal":{"name":"SPIE/OSA/IEEE Asia Communications and Photonics","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126792037","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}
引用次数: 1
Silicon-nanowire-based optical sensor with high sensitivity and large measurement range by using Mach-Zehnder interferometer-coupled microring 采用Mach-Zehnder干涉仪耦合微环的高灵敏度、大测量范围的硅纳米线光学传感器
SPIE/OSA/IEEE Asia Communications and Photonics Pub Date : 2010-12-08 DOI: 10.1117/12.888453
Jianwei Wang, Sailing He, D. Dai
{"title":"Silicon-nanowire-based optical sensor with high sensitivity and large measurement range by using Mach-Zehnder interferometer-coupled microring","authors":"Jianwei Wang, Sailing He, D. Dai","doi":"10.1117/12.888453","DOIUrl":"https://doi.org/10.1117/12.888453","url":null,"abstract":"A Mach-Zehnder interferometer-coupled microring is experimentally demonstrated for optical sensing with a high sensitivity (~111 nm /RIU), a high extinction ratio (>26dB), and a very large quasi free-spectral-range (>100 nm), which helps to obtain a large measurement range. The MZI-coupled microring sensor still has good performance when the reflective index of the ambient materials largely changes (1","PeriodicalId":179447,"journal":{"name":"SPIE/OSA/IEEE Asia Communications and Photonics","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126473010","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}
引用次数: 4
Two-mode semiconductor laser for mm-wave in radio over fiber transmission 毫米波光纤传输双模半导体激光器
SPIE/OSA/IEEE Asia Communications and Photonics Pub Date : 2010-12-08 DOI: 10.1117/12.888538
C. Yeh, C. Chow, Y. F. Wu, F. Shih, C. H. Wang, S. Chi
{"title":"Two-mode semiconductor laser for mm-wave in radio over fiber transmission","authors":"C. Yeh, C. Chow, Y. F. Wu, F. Shih, C. H. Wang, S. Chi","doi":"10.1117/12.888538","DOIUrl":"https://doi.org/10.1117/12.888538","url":null,"abstract":"In this investigation, an mm-wave RoF transmission link with dual beat-mode optical source is investigated. We demonstrate a 170 GHz band millimeter-wave source using an external dual-mode-locked Fabry-Perot laser diode (FP-LD) with a 1.38 nm mode-spacing. Two distributed feedback (DFB) lasers are used to inject the corresponding modes of FP-LD to generate dual-beat-mode output. The proposed dual-mode laser is not only stable, but also has single-longitudinal- mode (SLM) output characteristics. Moreover, we also investigate the relationship between two external-injected wavelengths for the dual-wavelength output.","PeriodicalId":179447,"journal":{"name":"SPIE/OSA/IEEE Asia Communications and Photonics","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133678844","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}
引用次数: 1
Simultaneous measurement of strain and temperature using a high birefringence fiber loop mirror and an erbium-doped fiber 利用高双折射光纤环形镜和掺铒光纤同时测量应变和温度
SPIE/OSA/IEEE Asia Communications and Photonics Pub Date : 2010-12-08 DOI: 10.1117/12.888234
Jie Shi, S. Xiao, He Chen, Min Zhu, Meihua Bi
{"title":"Simultaneous measurement of strain and temperature using a high birefringence fiber loop mirror and an erbium-doped fiber","authors":"Jie Shi, S. Xiao, He Chen, Min Zhu, Meihua Bi","doi":"10.1117/12.888234","DOIUrl":"https://doi.org/10.1117/12.888234","url":null,"abstract":"A fiber sensor configuration suitable for simultaneous measurement of temperature and strain is investigated. The sensor consists of a high-birefringence fiber loop mirror concatenating with an erbium-doped fiber. The high-birefringence fiber used in the configuration is capsule shaped polarization maintaining fiber, which serves as the sensor element. While the erbium-doped fiber acts as the temperature compensation module. By monitoring the peak power variation and peak wavelength shift, it is feasible to simultaneously measure temperature and strain. The experimental results show that the mean square errors for temperature and stain are 0.35°C and 13.34με, respectively. The proposed sensor configuration shows several merits, including simple in structure, easy fabrication, low cost and high sensitivity.","PeriodicalId":179447,"journal":{"name":"SPIE/OSA/IEEE Asia Communications and Photonics","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134399475","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}
引用次数: 0
Clinical translation of ultraviolet autofluorescence microscopy towards endomicroscopy for early detection of cancer 紫外光自体荧光显微镜对子宫内膜显微镜早期发现癌症的临床意义
SPIE/OSA/IEEE Asia Communications and Photonics Pub Date : 2010-12-08 DOI: 10.1117/12.888682
B. Lin, S. Urayama, R. Saroufeem, D. Matthews, S. Demos
{"title":"Clinical translation of ultraviolet autofluorescence microscopy towards endomicroscopy for early detection of cancer","authors":"B. Lin, S. Urayama, R. Saroufeem, D. Matthews, S. Demos","doi":"10.1117/12.888682","DOIUrl":"https://doi.org/10.1117/12.888682","url":null,"abstract":"The non-invasiveness of autofluorescence technology may reduce sampling error and time delay for histopathology diagnosis. We establish biophotonic methods and guidelines to visualize and interpret early epithelial tissue changes that signify disease. Flexible and rigid fiber endomicroscopy instrumentation design parameters feasible for translation towards clinical use are in development.","PeriodicalId":179447,"journal":{"name":"SPIE/OSA/IEEE Asia Communications and Photonics","volume":"298 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114487177","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}
引用次数: 0
Modeling of insertion loss of fiber Fabry-Perot filter with a bidirectional beam propagation method 光纤法布里-珀罗滤波器插入损耗的双向光束传播建模
SPIE/OSA/IEEE Asia Communications and Photonics Pub Date : 2010-12-08 DOI: 10.1117/12.887981
Haibing Qi, Yonglin Yu
{"title":"Modeling of insertion loss of fiber Fabry-Perot filter with a bidirectional beam propagation method","authors":"Haibing Qi, Yonglin Yu","doi":"10.1117/12.887981","DOIUrl":"https://doi.org/10.1117/12.887981","url":null,"abstract":"Insertion loss caused by diffraction effects may yield low throughput in the Fabry-Perot tunable filter. A bidirectional beam propagation method (BPM) is introduced to describe the relationship between the related parameters such as length of air gap and mirror reflectivity and the insertion loss of fiber Fabry-Perot filter. The numerical simulation results indicate that the method can provide a simple and useful way for the device design.","PeriodicalId":179447,"journal":{"name":"SPIE/OSA/IEEE Asia Communications and Photonics","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115911097","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}
引用次数: 0
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