Results 251 to 260 of about 138,061 (301)

Optical Fiber Sensing Solutions

2017
Optical fibers have revolutionized communications industry and since the early 1970s have become the communications medium of choice for telephones, Internet, cable television, security cameras, utility, and industrial networks. Enormous information transmission capacity of the optical fibers combined with additional advantages, such as low losses ...
Yuliya Semenova, Gerald Farrell
openaire   +2 more sources

Chemical sensing with microbent optical fiber

Optics Letters, 2001
We propose and demonstrate the possibility of using a permanently microbent bare optical fiber for detecting chemical species. Two detection schemes, viz., a bright-field detection scheme (for the core modes), and a dark-field detection scheme (for the cladding modes) have been employed to produce a fiber-optic sensor.
T L, S, N A, George, P, Sureshkumar, P, Radhakrishnan, C P, Vallabhan, V P, Nampoori   +5 more
openaire   +2 more sources

innoFSPEC: fiber optical spectroscopy and sensing

SPIE Proceedings, 2008
innoFSPEC Potsdam is presently being established as in interdisciplinary innovation center for fiber-optical spectroscopy and sensing, hosted by Astrophysikalisches Institut Potsdam and the Physical Chemistry group of Potsdam University, Germany. The center focuses on fundamental research in the two fields of fiber-coupled multi-channel spectroscopy
Roth, Martin M., Löhmannsröben, Hans-Gerd (Prof. Dr.), Kelz, A., Kumke, Michael Uwe (PD Dr.)   +3 more
openaire   +2 more sources

Plastic Optical Fibers for Sensing Applications

Optical Fiber Communication Conference, 2014
We review recent developments in polymer optical fiber sensor technology and how such ‘POF’ sensors may extend the capabilities of the existing silica fiber sensors.
Berghmans, Francis, Thienpont, Hugo
openaire   +2 more sources

Fiber optic acoustic sensing

SPIE Proceedings, 2012
A review of fiber optic acoustic sensors for naval applications is presented. Limitations of fiber interferometric sensors are described and novel acoustic sensor transducers enabled through fiber laser sensor technology are presented.
openaire   +1 more source

Low-noise fiber-optic rotation sensing

Optics Letters, 1981
A major source of noise in fiber-optic Sagnac interferometers was identified to be the fluctuation of the phase of Rayleigh backscattering resulting from minute temperature variations and vibration. This noise can be reduced either by introducing a phase modulation into the fiber ring or by the use of a low-coherence source. A noise-equivalent rotation
K, Böhm, P, Russer, E, Weidel, R, Ulrich   +3 more
openaire   +2 more sources

Side-hole fiber for fiber-optic pressure sensing

Optics Letters, 1986
An optical fiber whose structure is similar to that of the PANDA fiber, but with two open channels in the place of the stress members, is investigated. Variations of the internal or external gas pressure permit tuning of the fiber birefringence (10−4 rad m−1 Pa−1) over a wide range, including sign reversal, and application as a pressure sensor.
H M, Xie, P, Dabkiewicz, R, Ulrich, K, Okamoto   +3 more
openaire   +2 more sources

Fiber-Optic Chemical Sensing With Infrared-Transmitting Optical Fiber

SPIE Proceedings, 1990
Infrared transmitting heavy metal fluoride optical fiber has been used to separate a Fourier-transform infrared (FTIR) spectrometer from a remote measurement point. Several types of remote sensors have been developed for concentration measurements. Remote transmission cells connected to fiber cables have been used to measure near-infrared spectra of ...
Richard D. Driver, Garett M. Leskowitz, Lawrence E. Curtiss   +2 more
openaire   +1 more source

Optical Fiber Sensing Principles

2019
This chapter presents a broad view of some of the published and most used techniques and schemes for sensing with polymer optical fibers (POF), and presents a small part of the sensing devices using POF since the same techniques can be used to measure several different parameters with slight modifications.
Daniel André Pires Duarte, Rogério N. Nogueira, Lúcia Bilro   +2 more
openaire   +1 more source

Polymer Optical Fibers for Sensing

Macromolecular Symposia, 2020
AbstractSensing techniques based on optical fibers are used in numerous key fields. For example, optical fiber sensors are exploited in medical diagnostics, environmental monitoring, physical parameters detection, industrial applications, food safety, and security.
Cennamo N., Zeni L.
openaire   +1 more source