scholarly journals Determination of group and phase birefringence dispersion of Hi-Bi optical fiber using a broadband light source

2021 ◽  
Author(s):  
Norbert Tarjányi ◽  
Daniel Kacik ◽  
Raphael Jamier ◽  
Georges Humbert ◽  
Philippe Roy ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Light Source ◽  
Broadband Light Source

scholarly journals Evaluation of Viscosity Dependence of the Critical Meniscus Height with Optical Fiber Sensors

Sensors ◽  
2021 ◽  
Vol 21 (23) ◽  
pp. 8130
Author(s):  
Leonardo Binetti ◽  
Fraser Simpson ◽  
Lourdes S. M. Alwis
Keyword(s):  
Optical Fiber ◽  
Light Source ◽  
Data Extraction ◽  
Measurement Techniques ◽  
Fiber Sensors ◽  
Suitable Alternative ◽  
Target Parameter ◽  
Broadband Light Source ◽  
The Relationship ◽  
Viscosity Dependence

Conventional means of data extraction using optical fiber interrogators are not adequate for fast-paced detection of a target parameter. In this instance, the relationship between the critical meniscus heights (CMH) of several liquids to the extraction speed of a rod submerged in them, have been analyzed. A limitation of a previous interrogator used for the purpose had been light absorption by the liquid due to the used bandwidth of the readily-available light source, i.e., C-band. The newly proposed technique addresses this limitation by utilizing a broadband light source instead, with a Si-photodetector and an Arduino. In addition, the Arduino is capable of extracting data at a relatively faster rate with respect to the conventional optical interrogator. The use of a different operational wavelength (850 nm instead of 1550 nm) increased the r2 and the sensitivity of the sensor. The new setup can measure surface chemistry properties, with the advantage of being comparatively cheaper than the conventionally available interrogator units, thereby providing a suitable alternative to conventional measurement techniques of liquid surface properties, while reducing material waste, i.e., in terms of the required volume for detection of a target parameter, through the use of optical fiber.

The Response of a Broadband Light Source for an Optical Fiber Sensor Based on Surface Plasmon Resonance Technology

2014 ◽  
Vol 933 ◽  
pp. 487-490
Author(s):  
Shinn Fwu Wang ◽  
Cheng Lung Hsu ◽  
Fu Hsi Kao ◽  
An Li Liu
Keyword(s):  
Surface Plasmon Resonance ◽  
Optical Fiber ◽  
Light Source ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Incident Angle ◽  
Optical Fiber Sensor ◽  
Fiber Sensor ◽  
Biochemical Sensing ◽  
Broadband Light Source

In this paper, the study on response of a broadband light source for an optical fiber sensor (OFS) based on surface plasmon resonance (SPR) technology is presented. The OFS is made of a multimode optical fiber which cladding was removed and coated with two layers of metal films. As a broadband light source is launched into the OFS at a suitable incident angle, we can obtain the intensity at the output of the optical fiber sensor. With the structure, the refractive index detection can be made by the SPR spectra that are obtained by an Optical Spectrum Analyzer (OSA). The OFS could be valuable for chemical, biological and biochemical sensing, etc. It has some advantages, such as, high resolution and stability, small size and real-time measurement.

Electrically Driven Near-Infrared Broadband Light Source with Gaussian-Like Spectral Shape Based on Multiple InAs Quantum Dots

2016 ◽  
Vol E99.C (3) ◽  
pp. 381-384 ◽  
Author(s):  
Takuma YASUDA ◽  
Nobuhiko OZAKI ◽  
Hiroshi SHIBATA ◽  
Shunsuke OHKOUCHI ◽  
Naoki IKEDA ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Light Source ◽  
Near Infrared ◽  
Spectral Shape ◽  
Inas Quantum Dots ◽  
Broadband Light Source

Determination of the profile of the temperature field of material heated by continuous laser radiation

2020 ◽  
pp. 51-10
Author(s):  
B.A. Lapshinov ◽  
◽  
N.I. Timchenko ◽  
Keyword(s):  
Temperature Field ◽  
Optical Fiber ◽  
Prolonged Exposure ◽  
Radiation Spectrum ◽  
Visible Range ◽  
Continuous Laser ◽  
Surface Temperature Distribution ◽  
Continuous Radiation ◽  
Spectral Pyrometry

Spectral pyrometry was used to determine the surface temperature distribution of Si, Nb, Cu, and graphite samples when they were locally heated by continuous radiation of an Nd:YAG laser (λ = 1.064 μm). With prolonged exposure to radiation, a stationary temperature field was established in the samples. The thermal spectra were recorded with a small spectrometer in the visible range in the temperature range above 850 K. The optical fiber used to transmit the radiation spectrum to the spectrometer had an additional diaphragm with a diameter of 1 mm located at a certain distance from the fiber end, which ensured the locality of the recorded spectra. The optical fiber moved continuously along the sample, and the spectrometer recorded up to 100 spectra with a frequency of 5-10 Hz. The temperature profile of the samples was calculated based on the results of processing the spectra using the Spectral Pyrometry program.

scholarly journals Determination of light source modules on blood glucose biomimetics using the reflectance method

2021 ◽  
Author(s):  
Bayu Prastowo ◽  
Renan Prasta Jenie ◽  
Ichsan Hardyanto ◽  
Muhammad Dahrul ◽  
Johan Iskandar ◽  
...  
Keyword(s):  
Blood Glucose ◽  
Light Source

Light source with light emitting diodes. Determination of limited frequencies and of the crest factor of illuminance meters and luminance meters

1989 ◽  
Vol 20 (5) ◽  
pp. 205-217
Author(s):  
J Deforges ◽  
P Garcia ◽  
J Bastie ◽  
F Marandet ◽  
J Bernard ◽  
...  
Keyword(s):  
Light Source ◽  
Light Emitting Diodes ◽  
Crest Factor ◽  
Light Emitting
Sign in / Sign up

Export Citation Format

Share Document