1,721,040 research outputs found
Large Temperature Sensitivity Of Birefringent Side-hole Photonic Crystal Fiber Filled With Indium
No full textThe temperature sensitivity of birefringent side-hole photonic crystal fiber filled with Indium was studied. It was found a large temperature sensitivity of the birefringence,-7.5×10-6/K, and that fiber birefringence showed anomalous property. © OSA 2013.Margulis, W., Yu, Z., Malmström, M., Rugeland, P., Knape, H., Tarasenko, O., High-speed electrical switching in optical fibers (2011) Appl. Opt., 50, pp. E65-E75Chesini, G., Cordeiro, C.M.B., de Matos, C.J.S., Fokine, M., Carvalho, I.C.S., Knight, J.C., All-fiber devices based on photonic crystal fibers with integrated electrodes (2009) Opt. Express, 17, pp. 1660-1665Chesini, G., Serrão, V.A., Franco, M.A.R., Cordeiro, C.M.B., Analysis and optimization of an all-fiber device based on photonic crystal fiber with integrated electrodes (2010) Opt. Express, 18, pp. 2842-2848Reyes-Vera, E., González-Valencia, E., Botero-Cadavid, J.F., Torres, P., Chesini, G., Cordeiro, C.M.B., Induced birefringence analysis in an all-fiber device based on photonic crystal fiber with integrated electrodes (2010), in Latin America Optics and Photonics Conference, OSA Technical Digest (CD), Optical Society of America, paper ThF2Lee, S.H., Kim, B.H., Han, W.-T., Effect of filler metals on the temperature sensitivity of side-hole fiber (2009) Opt. Express, 17, pp. 9712-9717Lee, S.H., Son, D.H., Kim, B.H., Han, W.-T., Effect of infiltration pressure on the birefringent properties of a side-hole fiber filled with indium (2012) Opt. Lett., 37, pp. 2322-232
Micro-structured Er 3+-tm 3+ Co-doped Tellurite Fiber For Broadband Optical Amplifier Around 1550nm
Full text linkMicro-structured Er 3+-Tm 3+ co-doped tellurite fiber with three rings of holes was fabricated using a soft glass drawing tower by a stack-and-draw technique. Amplified spontaneous emission (ASE) around 1550nm band were observed when pumped with both, 980nm and 790nm, lasers.6314Russell, P., Photonic crystal fibers (2003) Science, 299, pp. 358-362Knight, J.C., Photonic crystal fibers (2003) Nature, 424, pp. 847-851Kumar, V.V.R.K., George, A.K., Reeves, W.H., Knight, J.C., Russell, P.St.J., Omenetto, F.G., Taylor, A.J., Extruded soft glass photonic crystal fiber for ultrabroad supercontinuum generation (2002) Opt. Exp, 10 (25), pp. 1520-1525Chillcce, E.F., Cordeiro, C.M.B., Barbosa, L.C., Cruz, C.H.B., Er 3+-Tm 3+ co-doped tellurite fibers for broadband optical fiber amplifier around 1550nm band (2006) Opt. Fiber Technol., 12, pp. 185-195Chillcce, E.F., Rodriguez, E., Neves, A.A.R., Moreira, W.C., Cesar, C.L., Barbosa, L.C., Cruz, C.H.B., Tellurite photonic crystal fiber by a stack-and-draw technique (2006) J. Non-cryst. Solids, , accepted to publicationWhite, T.P., McPhedran, R.C., De Sterke, C.M., Botten, L.C., Steel, M.J., Confinement losses in microstructured optical fibers (2001) Opt. Lett, 26 (21), pp. 1660-1663Barbosa, L.C., Cruz, C.H.B., Cesar, C.L., Cordeiro, C.M.B., Chillcce, E.F., Production process of tellurite glass tubes, capillaries and rods Brazilian pending Patent No 018050002734Chillcce, E.F., Cordeiro, C.M.B., Rodriguez, E., Cruz, C.H.B., Cesar, C.L., Barbosa, L.C., Tellurite photonic crystal fiber with Er 3+-Tm 3+ for broadband optical amplifier in 1550nm (2006) Proc. of SPIE, 6116, p. 61160
Microstructured Polymer Fibers In Brazil
No full textConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Microstructured polymer fibers (mPOF) are being fabricated in the Speciaty Optical Fibers Laboratory (LaFE) at the State University of Campinas (UNICAMP) in Brazil. In this work the initial results will be presented, in particular those related with a single mode fiber, a bimodal fiber, a spun fiber with elliptical birefringence and a two cores fiber made with PMMA cladding and cyclo olefin cores.295297CNPq,COPPE/UFRJ - Universidade Federal do Rio de Janeiro,et al.,FAPERJ,KDPOF,LIF - Laboratorio de Instrumentacao e FotonicaConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Espinel, Y.A.V., Franco, M.A.R., Cordeiro, C.M.B., Tunable Single-Polarization Single-Mode Microstructured Polymer Optical Fiber (2011) Journal of Ligthwave Technology, 29, p. 2372Barton, G., van Eijkelenborg, M.A., Henry, G., Large, M.C.J., Zagari, J., Fabrication of microstructured polymer optical fibres (2004) Optical Fiber Technology, 10, pp. 325-33
Induced Birefringence Analysis In An All-fiber Device Based On Photonic Crystal Fiber With Integrated Electrodes
No full textWe present an analysis of induced birefringence in a photonic crystal fiber with integrated electrodes. We found that the fiber birefringence axes rotated with temperature, which causes the effective refractive index varies nonlinearly. © 2001 Optical Society of America.Chesini, G., Cordeiro, C.M.B., de Matos, C.J.S., Fokine, M., Carvalho, I.C.S., Knight, J.C., All-fiber devices based on photonic crystal fibers with integrated electrodes (2009) Opt. Express, 17, pp. 1660-1665Chesini, G., Serrão, V.A., Franco, M.A.R., Cordeiro, C.M.B., Analysis and optimization of an all-fiber device based on photonic crystal fiber with integrated electrodes (2010) Opt. Express, 18, pp. 2842-2848Zhu, Z., Brown, T.G., Stress-induced birefringence in microstructured optical fibers (2003) Opt. Lett., 28 (23), pp. 2306-2308Botero-Cadavid, J.F., Causado-Buelvas, J.D., Torres, P., Spectral properties of locally pressed fiber Bragg gratings written in polarization maintaining fibers (2010) J. Lightwave Technol., 28, pp. 1291-1297Timoshenko, S.P., Goodier, J.N., Theory of Elasticity (1970), 3rd ed., McGraw-Hill, New YorkYu, Z., Tarasenko, O., Margulis, W., Fonjallaz, P.-Y., Birefringence switching of Bragg gratings in fibers with internal electrodes (2008) Opt. Express, 16, pp. 8229-8235Lee, S.H., Kim, B.H., Han, W.-T., Effect of filler metals on the temperature sensitivity of side-hole fiber (2009) Opt. Express, 17, pp. 9712-971
Numerical And Experimental Studies For A High Pressure Photonic Crystal Fiber Based Sensor
Full text linkWe 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. © American Institute of Physics.1055133136de Matos, C.J.S., (2008) CLEO conferenceR.E.P. de Oliveira, submitted to WSOF2008 AIP Proceedings (2008)Cordeiro, C.M.B., (2007) Optics Letters, 32, pp. 3324-3326Szpulak, M., Martynkien, T., Urbanczyk, W., (2004) Appl. Optics, 43, pp. 4739-4744MacPherson, W.N., (2005) Journal Light, 23, pp. 1227-1231. , TechnZhou, J., (2006) OFC'06, WI2Kosolapov, A.F., (2006) Inorganic Materials, 43, pp. 310-31
Tapered Graded Index Fibers For Sensing Applications
No full textOptical sensors based on modal interference are improved by tapering a small extension of a graded-index fiber. The tapered section modulates the periodic amplitude of the propagated beam, substantially increasing the sensitivity of these devices. © 2013 Optical Society of America.Liu, Y., Wei, L., Low-cost high-sensitivity strain and temperature sensing using graded-index multimode fibers (2007) Appl. Opt., 46, pp. 2516-2519Biazoli, C.R., Silva, S., Franco, M.A.R., Frazão, O., Cordeiro, C.M.B., Multimode interference tapered fiber refractive index sensors (2012) Appl. Opt., 51, pp. 5941-5945Tripathi, S.M., Kumar, A., Varshney, R.K., Kumar, Y.P., Marin, E., Meunier, J.-P., Strain and temperature sensing characteristics of single-mode-multimode-single-mode structures (2009) J. Lightwave Technol., 27, pp. 2348-2356Tripathi, S.M., Kumar, A., Marin, E., Meunier, J.-P., Single-multi-single mode structure based band pass/stop fiber optic filter with tunable bandwidth (2010) J. Lightwave Technol., 28, pp. 3535-3541Safaai-jazi, A., Propagation properties of tapered graded-index waveguides (1996) J. Mod. Opt., 43, pp. 1921-193
Generation Of Polarizing Sections In Highly Birefringent Photonic Crystal Fibers Via Post-processing
No full textThe structure of a commercial highly birefringent PCF was locally tapered to create a polarizing section. A polarization-depended loss of at least 32.2 dB over a 1-cm length was induced in the 1550-nm region. © OSA 2013.Saitoh, K., Koshiba, M., IEEE Photonics Technology Letters (2003), 15 (10)Zhang, F., Zhang, M., Liu, X., Ye, P., Journal of Lightwave Technology (2007), 25 (5)Espinel, A.V.Y., Franco, M.A.R., Cordeiro, C.M.B., Journal of Lightwave Technology (2011), 19 (16)Sodré Jr., A.C., Nascimento Jr., A.R., Franco, M.A.R., Oliveira, I., Serrão, V.A., Fragnito, H.L., Optical Fiber Technology (2012), 18, pp. 462-469Qian, W., Zhao, C.L., Wang, Y., Chan, C.C., Liu, S., Jin, W., Optics Letters (2011), 36 (16
Dual-environment Pressure Sensor Using A Photonic-crystal Fiber
No full textIn this paper, we report the development of a side-hole photonic-crystal fiber (SH-PCF) based dual-environment pressure sensor. SH-PCF sensitivity to pressure variations was measured and compared to simulated data. SH-PCF sensitivity was found to be 2.8 times higher than the one presented by the commercial PM-1550-01 fiber. For probing two environments, one spliced two sections of the studied SH-PCF with different lengths in a solc-filter-like configuration. Individual responses of the first and second fiber can be independently obtained in this setup. Therefore, making use of SH-PCF sensitivity to pressure variations, a pressure sensor for dual environment monitoring is build up. © 2014 SPIE.9157BaySpec,COPSESA,et al.,FiberCore,FiberSensing,OZ OpticsRussel, P., Photonic crystal fibers (2003) Science, 299 (5605), pp. 358-382Statkiewicz, G., Martynkien, T., Urbanczyk, W., Measurements of modal birefringence and polarimetric sensitivity of the birefringent holey fiber to hydrostatic pressure and strain (2004) Optics Communications, 241 (4-6), pp. 339-348Dong, X., Tam, H.Y., Shum, P., Temperature-insensitive strain sensor with polarization-maintaining photonic crystal fiber based Sagnac interferometer (2007) Applied Physics Letters, 90, pp. 151113-1511133Martins, H., Marques, M.B., Jorge, P., Cordeiro, C.M.B., Frazão, O., Intensity curvature sensor based on photonic crystal fiber with three coupled cores (2012) Optics Communications, 285, pp. 5128-5131Szpulak, M., Martynkien, T., Urbanczyk, W., Effects of hydrostatic pressure on phase and group modal birefringence in microstructurated holey fibers (2004) Applied Optics, 43, pp. 4739-4744Fávero, F.C., Quintero, S.M.M., Martelli, C., Braga, A.M.B., Silva, V.V., Carvalho, I.C.S., Llerena, R.W.A., Valente, L.C.G., Hydrostatic pressure sensing with high birefringence photonic crystal fibers (2010) Sensors, 10, pp. 9698-9711Nasilowski, T., Martynkien, T., Statkiewicz, G., Szpulak, M., Olszewski, J., Golojuch, G., Urbanczyk, W., Thienpont, H., Temperature and pressure sensitivities of the highly birefringent photonic crystal fiber with core asymmetry (2005) Applied Physics B, 81, pp. 325-331Jewart, C.M., Quintero, S.M., Braga, A.M.B., Chen, K.P., Design of a highly-birefringent microstructured photonic crystal fiber for pressure monitoring (2010) Optics Express, 18 (25)Osório, J.H., Cordeiro, C.M.B., Optical sensor based on two in-series birefringent optical fibers (2013) Applied Optics, 52, pp. 4915-492
Spectral Bandwidth Analysis Of High Sensitivity Refractive Index Sensor Based On Multimode Interference Fiber Device
Full text linkFiber optic structures based on multimode interference were investigated to the refractive index (RI) sensing. The proposed device is a singlemode-multimode-singlemode (SMS) structure, where the multimode section is a coreless fiber (MMF). The numerical analyses were carried out by beam propagation and modal expansion methods. Ultra-high sensitivity was obtained: 827 nm/RIU over a RI range of 1.30-1.44 and a maximum sensitivity of 3500 nm/RIU for RI∼1.43, considering △RI = 0.01. The dependence of spectral bandwidth was investigated taking into account the multimode fiber diameter and the coupling efficiency between modes at the input junction singlemode- multimode. © 2012 SPIE.8421Aguilar-Soto, J.G., Antonio-Lopez, J.E., Sanchez-Mondragon, J.J., May-Arrioja, D.A., Fiber optic temperature sensor based on multimode interference effects (2011) Proceedings of XVII Reunión Iberoamericana de Óptica & X Encuentro de Óptica, Láseres y Aplicaciones, Journal of Physics: Conference Series, 274, pp. 1-4Nguyen, L.V., Hwang, D., Moon, S., Moon, D.S., Chung, Y., High temperature fiber sensor with high sensitivity based on core diameter mismatch (2008) Optics Express, 16 (15), pp. 11369-11375Hatta, A.M., Rajan, G., Semenova, Y., Farrell, G., SMS fibre structure for temperature measurement using a simple intensity-based interrogation system (2009) Electronics Lett., 45 (21)Silva, S., Pachon, E.G.P., Franco, M.A.R., Hayashi, J.G., Malcata, F.X., Frazão, O., Jorge, P., Cordeiro, C.M.B., Ultra-high sensitivity-temperature fiber sensor based on multimode interference Applied Optics, , accepted to publicationWang, P., Brambilla, G., Ding, M., Semenova, Y., Wu, Q., Farrell, G., Investigation of single-mode-multimode-single-mode and single-mode-tapered-multimode-single-mode fiber structures and their application for refractive index sensing (2011) J. Opt. Soc. Am. B, 28 (5), pp. 1180-1186Wu, Q., Semenova, Y., Wang, P., Farrell, G., High sensitivity SMS fiber structure based refractometer-analysis and experiment (2011) Optics Express, 19 (9), pp. 7937-7944Jin, Y.X., Chan, C.C., Zhao, Y., Dong, X.Y., Refractive index measurement by using multimode interference (2011) Proceedings of 21st International Conference on Optical Fiber Sensors, Proc. of SPIE, 7753, pp. 77535FZhang, C., Li, E., Peng, L.V., Wang, W., A wavelength encoded optical fiber sensor based on multimode interference in a coreless silica fiber (2009) Proceedings of International Conference on Optical Instruments and Technology: Advanced Sensor Technologies and Applications, Proc. SPIE SPIE, 7157, pp. 71570HWang, P., Brambilla, G., Ding, M., Semenova, Y., Wu, Q., Farrell, G., High-sensitivity, evanescent field refractometric sensor based on a tapered, multimode fiber interference (2011) Opt. Lett., 36, pp. 2233-2235Mehta, A., Mohammed, W., Johnson, E.G., Multimode interference-based fiber-optic displacement sensor (2003) IEEE Photon. Technol. Lett., 15, pp. 1129-1131Hatta, A.M., Semenova, Y., Wu, Q., Farrell, G., Strain sensor based on a pair of single-mode-multimodesingle-mode fiber structures in a ratiometric power measurement scheme (2010) Appl. Opt., 49, pp. 536-541Silva, S., Frazão, O., Viegas, J., Ferreira, L.A., Araújo, F.M., Malcata, F.X., Santos, J.L., Temperature and strain-independent curvature sensor based on a singlemode/multimode fiber optic structure (2011) Meas. Sci. Technol., 22, p. 085201Soldano, L.B., Pennings, E.C.M., Optical multi-mode interference devices based on self-imaging: Principles and applications (1995) J. Lightwave Technol., 13 (4), pp. 615-62
Birefringence Properties Of Hybrid Photonic Crystal Fibers
No full textWe present a fabrication and an experimental investigation of the birefringent properties of a Highly Birefrigent Hybrid Photonic Crystal Fiber. Polarization dependent loss as high as 21 dB is experimentally obtained on the photonic bandgap edges. ©2009IEEE.804805Knight, J.C., Photonic Crystal Fibres (2003) Nature, 424, pp. 847-851. , AugustArismar Cerqueira Jr., S., Luan, F., Cordeiro, C.M.B., George, A.K., Knight, J.C., Hybrid photonic crystal fiber (2006) Optics Express, 14, pp. 926-931Arismar Cerqueira Jr., S., Cordeiro, C.M.B., Biancalana, F., Roberts, P.J., Hernandez-Figueroa, H.E., Brito Cruz, C.H., Hybrid photonic crystal fiber,Nonlinear interaction between two different photonic bandgaps of a Hybrid Photonic Crystal Fiber (2008) Optics Letters, 33. , SeptemberSchreiber, T., Stress-induced single-polarization single-transverse mode photonic crystal fiber with low nonlinearity (2005) Optics Express, 13, pp. 7621-763
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