in-fiber refractive-index
Characterization of fiber optic sensor for liquid refractive index monitoring
... and fiber optic sensors are been revolutionized with the development of optical device invention and the proliferation of sensing ...of fiber optic sensors is mainly due to the flexibility in the ...
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Hollow core photonic crystal fiber refractive index sensor based on modal interference
... for refractive index sensing, which are typically based on modal interference ...of fiber in order to excite cladding modes which creates interference effect with the core ...crystal fiber ...
5
Modeling of gold circular sub-wavelength apertures on a fiber endface for refractive index sensing
... Abstract: A finite-difference time-domain approach was used to investigate the excitation of surface plasmons of the circular sub-wavelength apertures on an optical fiber endface. This phenomenon provided the ...
6
A partial power gradient at coupling region for coupled waveguide fiber
... of fiber significantly affects normalized frequency and power partially at coupling region rather than wavelength and refractive index of core and ...
13
Intensity Modulated Fiber Optic Chemical Sensor -Properties Of Binary Solutions Of Hexadecane With 1-Butanol And 1-Heptanol
... density, refractive index and constitutive properties like dielectric constant and molar refraction are essential to understand the molecular interactions and inherent properties of liquids and may directly ...
5
Characterization of infrared surface plasmon resonances generated from a fiber-optical sensor utilizing tilted Bragg gratings
... Generally fiber gratings comprise an axially periodic refractive index variation inscribed in the core of a photo- sensitive single-mode optical fiber by ultraviolet radia- tion, or other ...
10
estimation of the coupling power parameter of fused coupled fibers
... We report in this paper the results of a theoretical and experimental analysis of SMF couplers. Experimental measurements are presented in order to better describe the behavior and operation of fiber couplers as a ...
10
Estimation of coupling coefficient and refractive index for fused coupled fibers
... At the same range position, κ can also be expressed as an effective power range for transmission to another fiber. The separation between two fibers is significant in coupling coefficient, because it determines ...
9
Design & Analysis the Parameters of Strain based FBG Sensors using Optigrating
... optical fiber communication and sensing applications. A fiber Bragg grating (FBG) is a type of distributed Bragg reflector constructed in a short segment of fiber that reflects particular wavelengths ...
9
Efficient strategy to increase higher order inter-modal stability of a step index multimode fiber
... of refractive index in layer B increases modal separation S 2 , but reduces that of S 1 ...of refractive index in layer E and reduction in layer F enhances both the S 1 and S 2 modal ...
11
American Journal of Sensor Technology
... Basically, there are three key factors that control the properties of the FBG; the fiber grating length, the grating strength and the refractive index. The main sensing parameters using FBG are the ...
5
Dispersion and Peak Reflectivity Analysis in a Non-Uniform FBG Based Sensors Due to Arbitrary Refractive Index Profile
... α sinh γL + jγ cosh γL (2) A typical reflectivity response as a function of wavelength has a flat main lobe around center wavelength and decaying side lobes. The analysis of reflectivity response of a non uniform ...
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Analysis of Optical Properties for Square, Circular and Hexagonal Photonic Crystal Fiber
... high refractive index than cladding and this phenomenon achieves by adding micro structured array of holes in the clad region [4] ...types: index guiding and photonic band gap ...specific ...
9
DESIGN FOR REDUCTION OF POSITIVE DISPERSION, LOW BENDING AND SPLICE LOSSES IN OPTICAL TRANSMISSION LINES
... in fiber transmits at different rates, so that these frequency components or model receive the terminals at different ...a fiber, elements such as numerical aperture, core diameter, refractive ...
7
Refractometric Fiber Optic Sensor for Detecting Salinity of Water
... or refractive index. The paper reports the refractometric fiber optic sensor for detec- tion of salinity of ...the refractive index of liquid and simu- lated in MATLAB. The fiber ...
5
Theoretical Analysis of Tunable Single-Core Comb Filter Based on MZI
... signal, refractive index and length of the fiber material, the comb filter provides the channel spacing tenability, and peak wavelength position ...
8
The Test Methods and Reducing Measures of Optical Fiber Loss
... optical fiber loss in the process of use ...optical fiber welding, adapter when the connection loss. Optical fiber loss mainly connecting and coupling loss in the process of use ...optical ...
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Accurate and Fast Extraction of the Bloch Eigenmodes of Fiber Gratings
... of refractive index has discontinuity like lamellar diffraction gratings ...of refractive index versus z, and therefore the formulation with Laurent’s rule, which slightly differs from the ...
9
Comprehensive Modeling of Multimode Fiber Sensors for Refractive Index Measurement and Experimental Validation
... In this paper, a comprehensive study is carried out on step-index MMFs for RI sensing where the light source is a single-mode DFB laser diode pigtailed to a single-mode fiber (SMF). A microscope objective ...
14
Droplet like bent multimode fiber sensor for temperature and refractive index measurement
... applications. Fiber optic sensors offer interesting features such as lightweight, small size and immunity to electromagnetic interference (EMI), while at the same time deliver the desired performance which ...
5