Cladding effects on spectral transmission of optical fibers for medical applications

2002 ◽  
Author(s):  
Bolesh J. Skutnik ◽  
Holly Park
Keyword(s):  
Optical Fibers ◽  
Medical Applications ◽  
Spectral Transmission

Optical-Fiber Sensors

MRS Bulletin ◽  
2002 ◽  
Vol 27 (5) ◽  
pp. 359-364 ◽  
Author(s):  
G. F. Fernando ◽  
D. J. Webb ◽  
Pierre Ferdinand
Keyword(s):  
Optical Fiber ◽  
Optical Fibers ◽  
Chemical Species ◽  
Optical Fiber Sensors ◽  
Medical Applications ◽  
General Introduction ◽  
Fiber Sensors ◽  
Advantages And Disadvantages ◽  
Introductory Article ◽  
Pressure Chemical

AbstractThe primary aim of this issue of MRS Bulletin is to present an overview of the deployment of optical-fiber sensors in a selected range of applications. The topics covered include a general introduction to optical fibers; a review of the sensing mechanisms that are available to monitor strain, temperature, pressure, chemical species, damage, and acoustic emission; and the use of optical-fiber sensors in medical applications. This introductory article presents a brief discussion of the advantages and disadvantages of optical-fiber sensors.

scholarly journals Optical Properties of the Self-Assembling Polymeric Colloidal Systems

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Alexandra Mocanu ◽  
Edina Rusen ◽  
Aurel Diacon
Keyword(s):  
Optical Fibers ◽  
Optical Materials ◽  
Polymeric Materials ◽  
Cost Effective ◽  
Emerging Technology ◽  
Medical Applications ◽  
Colloidal Systems ◽  
Self Assembling ◽  
Intensity Control ◽  
Polymeric Optical Fibers

In the last decade, optical materials have gained much interest due to the high number of possible applications involving path or intensity control and filtering of light. The continuous emerging technology in the field of electrooptical devices or medical applications allowed the development of new innovative cost effective processes to obtain optical materials suited for future applications such as hybrid/polymeric solar cells, lasers, polymeric optical fibers, and chemo- and biosensing devices. Considering the above, the aim of this review is to present recent studies in the field of photonic crystals involving the use of polymeric materials.

New Accessory for Characterizing Optical Fibers with an FT-IR Spectrometer

1994 ◽  
Vol 48 (7) ◽  
pp. 852-856 ◽  
Author(s):  
S. Lowry ◽  
T. May ◽  
A. Bornstein ◽  
Y. Weissman ◽  
R. Harman ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Optical Properties ◽  
Fiber Optics ◽  
Optical Fibers ◽  
Fiber Optic ◽  
Spectral Response ◽  
Spectral Transmission ◽  
Acceptance Angle ◽  
Ft Ir ◽  
Ft Ir Spectroscopy

An accessory has been designed for FT-IR spectroscopy that can be used to measure the optical properties of fiber-optic cables or serve as an interface for remote sensing probes that use fiber optics. This accessory utilizes compound parabolic concentrators (CPCs) to focus the energy from the spectrometer into the optical fiber and to also refocus the energy returning to the spectrometer onto the detector. The design was optimized for the high acceptance angle of chalcogenide mid-IR fibers. However, the use of nonimaging concentrators yields an all-reflecting system that can be used to characterize fibers with different spectral transmission ranges. This accessory has been used to investigate the spectral response, cladding effects, and impurities in various optical fibers.

Optical fibers with polyimide coatings for medical applications

2012 ◽  
Author(s):  
Andrei A. Stolov ◽  
Brian E. Slyman ◽  
Debra A. Simoff ◽  
Adam S. Hokansson ◽  
R. Steve Allen ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Medical Applications

Spectral transmission characteristics of shocked optical fibers

1986 ◽  
Vol 25 (19) ◽  
pp. 3430
Author(s):  
Paul D. Horn ◽  
Yogendra M. Gupta
Keyword(s):  
Optical Fibers ◽  
Spectral Transmission ◽  
Transmission Characteristics

scholarly journals Investigation on the Influence of Humidity on Stimulated Brillouin Backscattering in Perfluorinated Polymer Optical Fibers

Sensors ◽  
2018 ◽  
Vol 18 (11) ◽  
pp. 3952 ◽  
Author(s):  
Andy Schreier ◽  
Sascha Liehr ◽  
Aleksander Wosniok ◽  
Katerina Krebber
Keyword(s):  
Thermal Expansion ◽  
Optical Fibers ◽  
Strain Range ◽  
Spectral Transmission ◽  
Rayleigh Backscattering ◽  
Graded Index ◽  
Strain Coefficient ◽  
Polymer Optical Fibers ◽  
Stimulated Brillouin ◽  
First Time

In this paper perfluorinated graded-index polymer optical fibers are characterized with respect to the influence of relative humidity changes on spectral transmission absorption and Rayleigh backscattering. The hygroscopic and thermal expansion coefficient of the fiber are determined to be C H E = (7.4 ± 0.1) · 10 − 6 %r.h.−1 and C T E = (22.7 ± 0.3) · 10 − 6 K−1, respectively. The influence of humidity on the Brillouin backscattering power and linewidth are presented for the first time to our knowledge. The Brillouin backscattering power at a pump wavelength of 1319 nm is affected by temperature and humidity. The Brillouin linewidth is observed to be a function of temperature but not of humidity. The strain coefficient of the BFS is determined to be C S = (−146.5 ± 0.9) MHz/% for a wavelength of 1319 nm within a strain range from 0.1% to 1.5%. The obtained results demonstrate that the humidity-induced Brillouin frequency shift is predominantly caused by the swelling of the fiber over-cladding that leads to fiber straining.

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