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Fiber-Optic Chemical and Bio-Sensor Concepts Based on Functionalized Micro/Nano-Structures Micro-structured optical fibers PCF preform �Photonic crystal fibers �Hollow core fibers Integration of wave guiding and capillary structures → long interaction length �Enhanced analytic sensitivity at small sample volumes (gases and liquids) �Efficient light - matter interactions (absorption, fluorescence, Raman/SERS) Optical fiber taper 2.8 µm �Miniaturized instruments for the analysis of cells and other microstructures �Enhanced evanescent field interactions Nanowires FOS - 80
absorbance [dBm -1 ] Photonic Crystal Fiber (PCF) Chemical Sensing Increased Evanescent Field Absorption in PCF compared to Silica Fibers Standard silica fiber 2,50 2,00 1,50 1,00 0,50 0,00 absorbance max at 592 nm 550 570 590 610 630 650 670 690 wavelength [nm] PCF Standard EFAS fiber Spectral absorbance of Eosin dye solution measured in evanescent field of fibers permeable polymer coating ∅ core = 200 µm α solid fiber < 0,14 dBm -1 Microstructured PCF ∅ core = 23.8 µm d = 4- 6 µm Λ = 6 µm α PCF = 2,53 dBm -1 Sensitivity : PCF as EFA-Sensor → 20 times higher than for 200 µm silica fiber FOS - 81
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Fachhochschule Jena Fachbereich ET/
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Komponenten faseroptischer Sensoren
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Mikromechanische Silizium-Komponent
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Advantages of Optical Fiber Sensors
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Basic Fiber Sensor Configurations S
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Optical Fiber Sensors: Measurands
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Optical Fiber Sensors: Basic Signal
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Principle of Reflective Displacemen
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Application: Medical In-vivo Brain
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Fiber-Optic Medical In-vivo Heart P
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Technical Micro-Bending Fiber-Optic
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Optical Fiber Sensor Systems and th
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Porous Transducer Layers on Fiber E
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T-sensitive Transducer Layers: Temp
Page 29 and 30: Optical Fiber Sensor Systems and th
Page 31 and 32: Schema: Fa. Asea Photolumineszenz-T
Page 33 and 34: Transmissivity UV Fiber Evanescent
Page 35 and 36: Fiber-Optic UV Absorption Sensing o
Page 37 and 38: Spectral In-situ Nutrient Analysis
Page 39 and 40: Laser Principle of Michelson Interf
Page 41 and 42: Application of Fiber-Optic Interfer
Page 43 and 44: Scheme of Fiber-Optic 3-Axes Seismi
Page 45 and 46: Seismic Sensing: Measurement Exampl
Page 47 and 48: Measurand: Extrinsic Fiber-Optic Fa
Page 49 and 50: Fiber-Optic Sagnac Interferometer G
Page 51 and 52: Bias stability < 1 °/h Noise < 10
Page 53 and 54: Polarimetrischer Stromsensor (Magne
Page 55 and 56: Distributed Fiber-Optic Sensor Syst
Page 57 and 58: Optical Fiber Sensor Systems and th
Page 59 and 60: Talbot-Interferometer Beam splitter
Page 61 and 62: FBG Sensor System: Basic Configurat
Page 63 and 64: Optical Fiber Grating Sensor System
Page 65 and 66: Einsatzbeispiele faseroptischer Sen
Page 67 and 68: FBG Sensor Systems: Applications in
Page 69 and 70: Application of Fiber Grating Sensor
Page 71 and 72: Application of Fiber Grating Sensor
Page 73 and 74: Force [N] 600 400 200 0 Application
Page 75 and 76: Rock-bolt with fiberoptic strain se
Page 77 and 78: FBG Evanescent-Field Chemical Sensi
Page 79: Optical Fiber Sensor Systems and th
Page 83 and 84: FBG Plasmon Biosensing Using Metall
Page 85 and 86: Optical Fiber Sensors: Applications
Page 87 and 88: Fiber Optic Sensor Market Developme
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