Results 21 to 30 of about 3,033 (225)

Intrinsically Stabilized Plastic Optical Fiber Link Subject to External Optical Feedback

open access: yesIEEE Photonics Journal, 2019
We develop a graded-index plastic optical fiber (GI POF) that can significantly stabilize a multimode fiber (MMF) link with a vertical-cavity surface-emitting laser (VCSEL) subject to external optical feedback.
Azusa Inoue, Yasuhiro Koike
doaj   +1 more source

Discrete Multitone Modulation for Maximizing Transmission Rate in Step-Index Plastic Optical Fibres [PDF]

open access: yes, 2009
The use of standard 1-mm core-diameter step-index plastic optical fiber (SI-POF) has so far been mainly limited to distances of up to 100 m and bit-rates in the order of 100 Mbit/s.
Andreas Bluschke   +10 more
core   +1 more source

Performance Comparison of Two Sensors Based on Surface Plasmon Resonance in a Plastic Optical Fiber

open access: yesSensors, 2013
In silica optical fiber Surface Plasmon Resonance (SPR)-based sensors, an increase in fiber core diameter produces a corresponding increase in the sensitivity and Signal to Noise Ratio (SNR).
Nunzio Cennamo   +4 more
doaj   +1 more source

Three Lobes Plastic Optical Fiber Bending and Rotation Sensor

open access: yesProceedings, 2019
In this work a multiparameter plastic optical fiber (POF) sensor is presented. A three lobes POF consisting of polymethylmethacrylate (PMMA) core and a fluorinated polymer (FP) for the cladding was fabricated.
Demetrio Sartiano   +2 more
doaj   +1 more source

Modified POF Sensor for Gaseous Hydrogen Fluoride Monitoring in the Presence of Ionizing Radiations [PDF]

open access: yes, 2012
This paper describes the development of a sensor designed to detect low concentrations of hydrogen fluoride (HF) in gas mixtures. The sensor employs a plastic optical fiber (POF) covered with a thin layer of glass- like material. HF attacks the glass and
Benussi, L.   +6 more
core   +1 more source

Toward the Development of Plasmonic Biosensors to Realize Point-of-Care Tests for the Detection of Viruses and Bacteria

open access: yesEngineering Proceedings, 2023
Optical fiber biosensors can be used to develop point-of-care tests (POCTs) for detecting viruses and bacteria in several matrices. In particular, the surface plasmon resonance (SPR) and localized SPR phenomena (LSPR) can be excited by exploiting low ...
Francesco Arcadio   +5 more
doaj   +1 more source

AlGaInN laser diode technology for GHz high-speed visible light communication through plastic optical fiber and water [PDF]

open access: yes, 2016
AlGaInN ridge waveguide laser diodes are fabricated to achieve single-mode operation with optical powers up to 100 mW at ∼420  nm∼420  nm for visible free-space, underwater, and plastic optical fiber communication.
Czernecki, Robert   +12 more
core   +1 more source

Measurement of Pulse Wave Signals and Blood Pressure by a Plastic Optical Fiber FBG Sensor

open access: yesSensors, 2019
Fiber Bragg grating (FBG) sensors fabricated in silica optical fiber (Silica-FBG) have been used to measure the strain of human arteries as pulse wave signals. A variety of vital signs including blood pressure can be derived from these signals.
Yuki Haseda   +5 more
doaj   +1 more source

Development of a low profile laser Doppler probe for monitoring perfusion at the patient – mattress interface [PDF]

open access: yes, 1988
The clinical importance of pressure ulcers is reviewed confirming the need for continuous monitoring of skin blood perfusion at the patient – mattress interface.
A. CALZOLARI   +9 more
core   +260 more sources

Optical router for optical fiber sensor networks based on a liquid crystal cell [PDF]

open access: yes, 2003
Optical fiber sensor networks are evolving rapidly. They are used because of the inert nature of optical fibers allowing no electromagnetic interference and safe applications in inflammable atmospheres; other relevant characteristics are their low ...
Aranda, Ángel Luis   +4 more
core   +2 more sources

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