Numerical aperture characteristics of angle-ended plastic optical fiber

2003 ◽  
Author(s):  
Cheng Gao ◽  
Gerard Farrell
Keyword(s):  
Optical Fiber ◽  
Numerical Aperture ◽  
Plastic Optical Fiber

scholarly journals Surface Plasmon Plastic Optical Fiber Resonance with Multi-Layer as Chemical Sensor

2021 ◽  
Vol 19 (50) ◽  
pp. 51-59
Author(s):  
Emad Khatar ◽  
Sudad Salman Bassam
Keyword(s):  
Optical Fiber ◽  
Surface Plasmon ◽  
Figure Of Merit ◽  
Chemical Sensor ◽  
Signal To Noise Ratio ◽  
Optical Fiber Sensor ◽  
Numerical Aperture ◽  
Plastic Optical Fiber ◽  
Core Diameter ◽  
Chemical Materials

A chemical optical fiber sensor based on surface plasmon resonance (SPR) was developed and implemented using multimode plastic optical fiber. The sensor is used to detect and measure the refractive index and concentration of various chemical materials (Urea, Ammonia, Formaldehyde and Sulfuric acid) as well as to evaluate the performance parameters such as sensitivity, signal to noise ratio, resolution and figure of merit. It  was noticed that the value of the sensitivity of the optical fiber-based SPR sensor, with 60nm and 10 mm long, Aluminum(Al) and Gold (Au) metals film exposed sensing region, was 4.4 μm, while the SNR was 0.20, figure of merit was 20 and resolution 0.00045. In this work a multimode plastic optical fiber with a core diameter of 980 μm, fluorinated polymer cladding of 20 μm and a numerical aperture of 0.51 was used.

scholarly journals Fabrication of a Chemical Sensor Based on Surface Plasmon Resonance via Plastic Optical Fiber

2020 ◽  
pp. 765-771
Author(s):  
Ghufran Mohammed Jassam ◽  
Soudad S. Al–Bassam ◽  
Murtadha F. Sultan
Keyword(s):  
Surface Plasmon Resonance ◽  
Optical Fiber ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Figure Of Merit ◽  
Chemical Sensor ◽  
Optical Fiber Sensor ◽  
Numerical Aperture ◽  
Plastic Optical Fiber ◽  
Core Diameter

In this work, a chemical optical fiber sensor based on Surface Plasmon Resonance (SPR) was designed and implemented using plastic optical fiber. The sensor is used for estimating refractive indices and concentrations of various chemical materials (methanol, distilled water, ethanol, kerosene) as well as for evaluating the performance parameters such as sensitivity, signal to noise ratio, resolution and the figure of merit of the fabricated sensor. It was found that the value of the sensitivity of the optical fiber-based SPR sensor, with 40 nm thick and 10 mm long Au metal film of exposed sensing region, was 3μm/RIU, while the SNR was 0.24, the figure of merit was 20, and the resolution was 0.00066. The sort of optical fiber utilized in this work is plastic optical fiber with a core diameter of 980 μm, a fluorinated polymer cladding of 20μm and a numerical aperture of 0.51.

scholarly journals Characterization of Mach Zehnder interferometer plastic optical fiber for intensity-based temperature sensor

2021 ◽  
Vol 1918 (2) ◽  
pp. 022010
Author(s):  
Ian Yulianti ◽  
N M Dharma Putra ◽  
Fianti ◽  
H Rumiana ◽  
Z A F Latif ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Temperature Sensor ◽  
Zehnder Interferometer ◽  
Plastic Optical Fiber ◽  
Mach Zehnder Interferometer

Distributed MIMO Experiment Using LiFi Over Plastic Optical Fiber

2020 ◽  
Author(s):  
Sepideh Mohammadi Kouhini ◽  
Sreelal Maravanchery Mana ◽  
Ronald Freund ◽  
Volker Jungnickel ◽  
Carina Ribeiro Barbio Correa ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Plastic Optical Fiber

scholarly journals An Enhanced Plastic Optical Fiber-Based Surface Plasmon Resonance Sensor with a Double-Sided Polished Structure

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1516
Author(s):  
Lian Liu ◽  
Shijie Deng ◽  
Jie Zheng ◽  
Libo Yuan ◽  
Hongchang Deng ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Optical Fiber ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Low Cost ◽  
Fiber Axis ◽  
Plastic Optical Fiber ◽  
Au Film ◽  
Spr Sensor ◽  
Resonance Sensor

An enhanced plastic optical fiber (POF)-based surface plasmon resonance (SPR) sensor is proposed by employing a double-sided polished structure. The sensor is fabricated by polishing two sides of the POF symmetrically along with the fiber axis, and a layer of Au film is deposited on each side of the polished region. The SPR can be excited on both polished surfaces with Au film coating, and the number of light reflections will be increased by using this structure. The simulation and experimental results show that the proposed sensor has an enhanced SPR effect. The visibility and full width at half maximum (FWHM) of spectrum can be improved for the high measured refractive index (RI). A sensitivity of 4284.8 nm/RIU is obtained for the double-sided POF-based SPR sensor when the measured liquid RI is 1.42. The proposed SPR sensor is easy fabrication and low cost, which can provide a larger measurement range and action area to the measured samples, and it has potential application prospects in the oil industry and biochemical sensing fields.

Sign in / Sign up

Export Citation Format

Share Document