A. Kudlinski, B. Cumberland, J. Travers, G. Bouwmans, Y. Quiquempois, A. Mussot
{"title":"CW Supercontinuum Generation in Photonic Crystal Fibres with Two Zero-Dispersion Wavelengths","authors":"A. Kudlinski, B. Cumberland, J. Travers, G. Bouwmans, Y. Quiquempois, A. Mussot","doi":"10.1063/1.3002529","DOIUrl":"https://doi.org/10.1063/1.3002529","url":null,"abstract":"This study is devoted to supercontinuum generation in photonic crystal fibres using a continuous-wave pumping scheme. We demonstrate that the spectral broadening of a continuous-wave laser can be more efficiently achieved in a short piece of photonic crystal fibre with two zero-dispersion wavelengths rather than in a fibre with a single one. This is due to efficient self-frequency shift of the solitons initially created by modulation instability, because their peak power is kept high in fibres with two zero-dispersion wavelengths. We then focus on the dynamics of the supercontinuum evolution under continuous-wave pumping in a series of different photonic crystal fibres exhibiting two zero-dispersion wavelengths. Control of the supercontinuum spectral extension is demonstrated as well as the changing dynamics as the zero-dispersion wavelengths are brought closer together. For closest zero-dispersion wavelengths, the spectral broadening is mainly due to parametric processes. For increasing spectral separation between the two zero-dispersion wavelengths, the soliton self-frequency shift due to intrapulse Raman scattering becomes more important. The soliton self-frequency shift is canceled just before the second zero-dispersion wavelength and some energy is transferred to a phase-matched dispersive wave. We also pay particular attention to the effect of the water absorption band located around 1380 nm.","PeriodicalId":301956,"journal":{"name":"1st Workshop on Specialty Optical Fibers and Their Applications","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125587045","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}
W. Margulis, O. Tarasenko, Zhangwei Yu, P. Fonjallaz, H. Knape
{"title":"High-Speed Fiber Switches","authors":"W. Margulis, O. Tarasenko, Zhangwei Yu, P. Fonjallaz, H. Knape","doi":"10.1063/1.3002532","DOIUrl":"https://doi.org/10.1063/1.3002532","url":null,"abstract":"All-fiber optical switches based on fiber with electrodes exhibit transition times <10 ns. The devices are monolithic and robust, they are simple and could potentially be manufactured at low cost. The insertion loss is extremely low and the devices are compatible with single mode fiber technology. Two types of switches are discussed, one based on polarization rotation, the other one relying on the wavelength shift of a fiber Bragg grating (FBG).","PeriodicalId":301956,"journal":{"name":"1st Workshop on Specialty Optical Fibers and Their Applications","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125673524","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}
J. Hayashi, C. Cordeiro, Marcos A. R. Franco, F. Sircilli
{"title":"Numerical and Experimental Studies for a High Pressure Photonic Crystal Fiber Based Sensor","authors":"J. Hayashi, C. Cordeiro, Marcos A. R. Franco, F. Sircilli","doi":"10.1063/1.3002521","DOIUrl":"https://doi.org/10.1063/1.3002521","url":null,"abstract":"We report a study of using photonic crystal fibers (PCFs) for high pressure applications. An opto-mechanical analysis was realized in regular PCFs and suspended-core microstructured optical fibers for different fiber geometrical parameters. It was found that the pressure sensitivity is highly dependent on the fiber structure. It was also experimentally shown that even small core PCFs with high air filling fraction can deal with pressures as high as 500 bar (7350 psi) without any noticeable problem.","PeriodicalId":301956,"journal":{"name":"1st Workshop on Specialty Optical Fibers and Their Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130172776","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}
{"title":"Silica-based highly nonlinear fiber as platform for optical processings","authors":"M. Hirano","doi":"10.1063/1.3002548","DOIUrl":"https://doi.org/10.1063/1.3002548","url":null,"abstract":"Recent progresses on optical characteristics of silica-based highly-nonlinear fibers (HNLFs), such as dispersion unifomization of longitudinal zero-dispersion wavelength and tailoring higher-order chromatic dispersions are reported. Applications using evolved HNLFs such as broad or selective FWM-based wavelength conversions and supercontinuum generation are also demonstrated.","PeriodicalId":301956,"journal":{"name":"1st Workshop on Specialty Optical Fibers and Their Applications","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122478316","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}
M. Werneck, A. V. Silva, N. C. C. Souza, M. Miguel, C. Beres, E. S. Yugue, C. Carvalho, F. L. Maciel, J. Silva-Neto, C. R. Guimarães, R. Allil, J. Baliosian
{"title":"Fiberoptic Applications in Sensors and Telemetry for the Electric Power Industry","authors":"M. Werneck, A. V. Silva, N. C. C. Souza, M. Miguel, C. Beres, E. S. Yugue, C. Carvalho, F. L. Maciel, J. Silva-Neto, C. R. Guimarães, R. Allil, J. Baliosian","doi":"10.1063/1.3002539","DOIUrl":"https://doi.org/10.1063/1.3002539","url":null,"abstract":"This presentation features the origin and the work of the Photonics and Instrumentation Laboratory (LIF) in instrumentation, fiberoptic sensors and POF technology. LIF started its work in 1986, twenty and two years ago, with only one lecturer and a few students. The first project was the development of the first Brazilian plotter with the purpose, at the time, to substitute expensive imported technology. LIF has today 25 people between students, technicians, scientists, engineers and teachers. We present here several successful projects of fiberoptic sensors using both silica and POF fibers, most of them applied on the field mainly for the electric power industry. Described are: a oil leakage sensor in petroleum hoses, PMMA evanescent sensors, temperature by the ruby fluorescence phenomenon, a current sensor calibrator for 500 kV current transformers, a leakage sensor to measure 500 kV insulators in extra-high voltage transmission line, etc. Many of the sensors presented here have been tested in the field, patented and transferred to the industry. We have also technical collaboration with several industries in Brazil, one of them a spin-off from LIF. Our objective is to become a reference centre in POF technology in Latin America and for this we are intended to keep producing “out of the shelves” POF technology and innovative industry solutions for many areas.","PeriodicalId":301956,"journal":{"name":"1st Workshop on Specialty Optical Fibers and Their Applications","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130714547","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. C. Brunetti, L. Scolari, J. Weirich, L. Eskildsen, G. Bellanca, P. Bassi, A. Bjarklev
{"title":"Gaussian Filtering with Tapered Oil-Filled Photonic Bandgap Fibers","authors":"A. C. Brunetti, L. Scolari, J. Weirich, L. Eskildsen, G. Bellanca, P. Bassi, A. Bjarklev","doi":"10.1063/1.3002515","DOIUrl":"https://doi.org/10.1063/1.3002515","url":null,"abstract":"A tunable Gaussian filter based on a tapered oil-filled photonic crystal fiber is demonstrated. The filter is centered at λ=1364nm with a bandwidth (FWHM) of 237nm. Tunability is achieved by changing the temperature of the filter. A shift of 210nm of the central wavelength has been observed by increasing the temperature from 25°C to 100°C. The measurements are compared to a simulated spectrum obtained by means of a vectorial Beam Propagation Method model.","PeriodicalId":301956,"journal":{"name":"1st Workshop on Specialty Optical Fibers and Their Applications","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124623345","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}
J. López-Higuera, A. Cobo, O. Conde, M. Lomer, F. Madruga, M. Quintela, A. Quintela, J. Mirapeix
{"title":"Successful Fiber Sensing Technologies and Hot Topics for the Near Future","authors":"J. López-Higuera, A. Cobo, O. Conde, M. Lomer, F. Madruga, M. Quintela, A. Quintela, J. Mirapeix","doi":"10.1063/1.3002535","DOIUrl":"https://doi.org/10.1063/1.3002535","url":null,"abstract":"Inside the Photonics field Optical Fiber Sensors (OFS) are currently being used and will still be used in the future in a wide number of applications because its properties present technical advantages over traditional techniques or, sometimes, is practically the only feasible solution. In this paper, the more successful techniques will be reviewed. Then a prospective for the near future of the market and hot topics in which invest research resources will be suggested.","PeriodicalId":301956,"journal":{"name":"1st Workshop on Specialty Optical Fibers and Their Applications","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115065838","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}
M. Welch, R. A. Correa, F. Gérôme, Steve Renshaw, J. Knight
{"title":"Tailoring the Nonlinear Response of Hollow-core Photonic Bandgap Fibres","authors":"M. Welch, R. A. Correa, F. Gérôme, Steve Renshaw, J. Knight","doi":"10.1063/1.3002542","DOIUrl":"https://doi.org/10.1063/1.3002542","url":null,"abstract":"We have fabricated 7-cell and 3-cell core hollow-core photonic bandgap fibres with core sizes ranging from ~ 16.7 µm to 6.5 µm. A numerical study of the nonlinear coefficient of fibres with different core sizes is carried out. We show that the nonlinearity is more effectively increased by a 3-cell core design than by reducing the size of a seven-cell core.","PeriodicalId":301956,"journal":{"name":"1st Workshop on Specialty Optical Fibers and Their Applications","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123516694","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}
{"title":"Spectral Response of FBG Written in Specialty Single-Mode Fibers","authors":"P. Torres, J. F. Botero-Cadavid, F. Vélez","doi":"10.1063/1.3002545","DOIUrl":"https://doi.org/10.1063/1.3002545","url":null,"abstract":"In this work, we describe the spectral properties of fiber Bragg gratings (FBGs) in Hi-Bi PANDA fibers subjected to diametrical compression and fibers with internal electrodes, as two examples of the facilities offered by specialty single-mode fibers for processing optical signals. Due to the complex structure of the fibers, the induced effects on the fiber effective birefringence are presented and discussed, based on numerical analysis with the finite element method.","PeriodicalId":301956,"journal":{"name":"1st Workshop on Specialty Optical Fibers and Their Applications","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132962802","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}
Rafael E. P. de Oliveira, C. D. Matos, Juliano Grigoleto, C. Cordeiro
{"title":"Simple and Temperature-Insensitive Pressure Sensing Based on a Hollow-Core Photonic Crystal Fiber","authors":"Rafael E. P. de Oliveira, C. D. Matos, Juliano Grigoleto, C. Cordeiro","doi":"10.1063/1.3002520","DOIUrl":"https://doi.org/10.1063/1.3002520","url":null,"abstract":"The sensitivity to pressure of lossy air-guided modes in a commercial hollow-core photonic crystal fiber was experimentally exploited to develop a novel pressure sensor. The transmission of these modes was directly modulated by the measurand, which makes the interrogation system very simple. Using a supercontinuum source, these specific modes were identified within the visible spectral range and correspond to narrow transmission windows well away from the fiber’s main bandgap, centered around 1550 nm. The origin of these windows is being investigated but is likely to be related to cladding bandgaps. One of these windows, around 633 nm, was used for the analysis presented in this paper. An attenuation increase was observed when pressure was applied to a ~3-cm long cell, which was traversed by the fiber. The attenuation reached 5 dB with 300 kgf/cm2 gauge pressure. The transmission was found to be insensitive to temperature up to 100%, which is a highly attractive feature for sensing applications. It was also found that much higher sensitivities (a few dB attenuation with ~0.5 kgf/cm2 gauge pressure) could be obtained when pressure was internally applied to the fiber microstructure. This fact allows for the construction of sensors with a wide range of sensitivities, which can, thus, suit different applications. Transmission within the infrared bandgap was insensitive to pressure and can serve as a reference.","PeriodicalId":301956,"journal":{"name":"1st Workshop on Specialty Optical Fibers and Their Applications","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115474781","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}