Analysis of optical-power redistribution for hybrid optical fibers

2007 ◽  
Author(s):  
J. Skapa ◽  
V. Vašinek ◽  
P. Šiška
Keyword(s):  
Optical Fibers ◽  
Optical Power

Influence of depth of intermediate layer on optical power distribution in W-type optical fibers

2012 ◽  
Vol 51 (20) ◽  
pp. 4896 ◽  
Author(s):  
Ana Simović ◽  
Alexandar Djordjevich ◽  
Svetislav Savović
Keyword(s):  
Optical Fibers ◽  
Power Distribution ◽  
Intermediate Layer ◽  
Optical Power

scholarly journals Macrobending Loss Analysis on Singlemode-Multimode-Singlemode Fiber Optic Core

2019 ◽  
Vol 9 (2) ◽  
pp. 11-15
Author(s):  
Sisca Arisya Harry Andhina
Keyword(s):  
Light Source ◽  
Optical Fibers ◽  
Fiber Optic ◽  
Optical Power ◽  
Single Mode ◽  
Fiber Optic Cable ◽  
Power Meter ◽  
Loss Analysis ◽  
Measurement Results ◽  
Source Test

Macrobending often occurs in optical fibers that embedded in the ground due to shifting of soil or rocks in the ground causing interference in transmission. In this study used single-mode-multimode-singlemode fiber optic cable connected manually and axially measured using a light source test equipment and optical power meter and the results will be compared. The measurement results obtained the greater  value of macrobending losses with the smaller the diameter of the winding, and the greater the number of turns. The highest value of macrobending losses in multimode cables is -1.48dB at 0.5cm diameter with 5 turns, highest value of macrobending losses on single mode cables is -12.73dB at 0.5cm diameter with 5 turns,  lowest value of macrobending losses for multimode cables is -0.44dB at 5cm diameter with 1 twist, lowest macrobending losses in singlemode cables is -1.69dB at 5cm diameter with 1 twist. While the value of macrobending losses on axially connected SMS cables shows the highest value of macrobending losses on multimode cables is -1.12dB in diameter of 0.5cm with 5 turns,  highest value of macrobending losses on singlemode cables is -1.18dB at diameter of 0.5cm with 5 turns,  lowest value for macrobending losses on multimode cables is -0.66dB at 5cm in diameter with 1 twist, the smallest value for macrobending losses on singlemode cables is -0.27dB at 5cm diameter with 1 twist . The measurement results also showed that the macrobending losses of manually connected SMS cables were greater than the macrobending losses of axially connected SMS cables.

scholarly journals Global characterization of optical power propagation in step-index plastic optical fibers

2006 ◽  
Vol 14 (20) ◽  
pp. 9028 ◽  
Author(s):  
Javier Mateo ◽  
M. Angeles Losada ◽  
Ignacio Garcés ◽  
Joseba Zubia
Keyword(s):  
Optical Fibers ◽  
Optical Power ◽  
Step Index ◽  
Plastic Optical Fibers

Highly-efficient optical power combiners based on evanescently-coupled micro/nano optical fibers

2012 ◽  
Vol 285 (17) ◽  
pp. 3592-3596 ◽  
Author(s):  
Zehua Hong ◽  
Xinwan Li ◽  
Linjie Zhou ◽  
Weiwen Zou ◽  
Xiaomeng Sun ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Optical Power ◽  
Power Combiners ◽  
Highly Efficient

scholarly journals Método aproximado para determinar la potencia óptica en una linterna fotónica

2019 ◽  
pp. 23-29
Author(s):  
Patricia Ixchel Palma-Arguello ◽  
Grethell Georgina Pérez-Sánchez ◽  
Fernando Martínez-Piñón ◽  
Genaro Hernández-Valdez
Keyword(s):  
Output Power ◽  
Optical Fibers ◽  
Numerical Approximation ◽  
Near Infrared ◽  
Optical Power ◽  
Single Mode ◽  
Incoherent Light ◽  
Optical Output ◽  
Tapered Optical Fiber ◽  
Para Determinar

Astronomy has benefited significantly from the development of photonic technology. However, the use of single-mode optical fibers in this area is not entirely efficient, this is mainly since its core, of the order of 8 microns in diameter, does not allow the capture of large amounts of light. In addition, in certain astronomical studies, it is required to analyze the multimodal incoherent light coming from the stars, particularly in the spectral range of the near infrared. One solution to these demands is the use of photonic lanterns, which are devices that function as an interface between a set of single-mode fibers and a multimode fiber, and in whose transition very low optical losses are obtained. However, there is not as far as we know, a mathematical method for the analysis of the behavior of the output power in photonic lanterns. Therefore, in this work we propose a numerical approximation method to determine the optical output power of single mode optical fibers in a photonic lantern, using the solution of eigenvalue equations, as well as the spatial capture of a part of the distribution of optical power, through of the end of a monomode tapered optical fiber.

Comparative Investigation of Gamma Radiation Effects on Long Period Gratings and Optical Power in Different Optical Fibers

2019 ◽  
Vol 37 (18) ◽  
pp. 4560-4566 ◽  
Author(s):  
Flavio Esposito ◽  
Andrei Stancalie ◽  
Constantin-Daniel Negut ◽  
Stefania Campopiano ◽  
Dan Sporea ◽  
...  
Keyword(s):  
Gamma Radiation ◽  
Optical Fibers ◽  
Radiation Effects ◽  
Optical Power ◽  
Comparative Investigation ◽  
Long Period ◽  
Long Period Gratings

Optical Fibers in Integrated Molecular Sensor Systems – More Than Interconnects

2012 ◽  
Vol 1438 ◽  
Author(s):  
Xuan Yang ◽  
Claire Gu
Keyword(s):  
Optical Fibers ◽  
Optical Power ◽  
Building Blocks ◽  
Optical Systems ◽  
Sensor Systems ◽  
Integrated Sensor ◽  
Molecular Sensors ◽  
Surface Enhanced Raman ◽  
Potential Applications ◽  
Enhanced Raman Scattering

ABSTRACTOptical fibers have been successfully used in long-haul communication, endoscopy, and other optical systems to transmit optical power as well as information from one point to another, serving as interconnects at various scales. In integrated sensor systems, optical fibers have been frequently employed to connect the source and the detector, due to their flexibility, compactness, and low loss. However, optical fibers can provide more functions than a simple transmission channel. In this paper, we review our work on optical fibers as a platform for molecular sensors based on Raman spectroscopy (RS) and surface enhanced Raman scattering (SERS). The fibers serve to significantly increase the sensitivity of RS/SERS and to facilitate the integration of a compact sensor system. We will discuss the principles of operation of various building blocks, demonstrate our recent results, and highlight some potential applications.

scholarly journals Evaluation of Nanoplasmonic Optical Fiber Sensors Based on D-Type and Suspended Core Fibers with Metallic Nanowires

Photonics ◽  
2019 ◽  
Vol 6 (3) ◽  
pp. 100
Author(s):  
Diego Santos ◽  
Ariel Guerreiro ◽  
José Manuel Baptista
Keyword(s):  
Optical Fiber ◽  
Optical Fibers ◽  
Optical Power ◽  
Optical Fiber Sensors ◽  
Metallic Nanowires ◽  
Optical Mode ◽  
Localized Modes ◽  
Fiber Sensors ◽  
Plasmonic Sensors ◽  
Sensor Performance

The introduction of metallic nanostructures in optical fibers has revolutionized the field of plasmonic sensors since they produce sharper and fine-tuned resonances resulting in higher sensitivities and resolutions. This article evaluates the performance of three different plasmonic optical fiber sensors based on D-type and suspended core fibers with metallic nanowires. It addresses how their different materials, geometry of the components, and their relative position can influence the coupling between the localized plasmonic modes and the guided optical mode. It also evaluates how that affects the spatial distributions of optical power of the different modes and consequently their overlap and coupling, which ultimately impacts the sensor performance. In this work, we use numerical simulations based on finite element methods to validate the importance of tailoring the features of the guided optical mode to promote an enhanced coupling with the localized modes. The results in terms of sensitivity and resolution demonstrate the advantages of using suspended core fibers with metallic nanowires.

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