Results 211 to 220 of about 3,116 (232)

Flexible fabrication of long-period in-fiber gratings

Technical Digest. Summaries of Papers Presented at the Conference on Lasers and Electro-Optics. Conference Edition. 1998 Technical Digest Series, Vol.6 (IEEE Cat. No.98CH36178), 1998
We have demonstrated a novel, simple, low-cost and all-fiber interrogation technique for a strain/temperature fiber Bragg sensor using a long-period grating. We show the schematic diagram of the demodulation scheme. The amount of light transmitted by the long-period grating is determined by its wavelength and is therefore proportional to the wavelength
L.A. Everall, R.W. Fallon, J.A.R. Williams, L. Zhang, I. Bennion   +4 more
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Splicer-based long-period fiber gratings

OFC '98. Optical Fiber Communication Conference and Exhibit. Technical Digest. Conference Edition. 1998 OSA Technical Digest Series Vol.2 (IEEE Cat. No.98CH36177), 2002
Summary form only given. Presents a one-step process for the fabrication of efficient, compact long-period gratings. The technique makes use ofa controlled arc to periodically modify an optical fiber by a pair of electrodes. The setup comprises a commercially available splicer whose fiber holding mechanism is replaced by a motorized stage, which allows
S.G. Kosinski, A.M. Vengsarkar
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Magnetomechanically induced long period fiber gratings

AIP Conference Proceedings, 2008
In this work, we report a simple, flexible method to create long period fiber gratings mechanically by controlling the repulsion/attraction force between two magnets that pressing a plate with a periodic array of small glass cylinders to a short length of optical fiber.
Jesus D. Causado-Buelvas, Nelson D. Gomez-Cardona, Pedro Torres, Niklaus Ursus Wetter, Jaime Frejlich   +4 more
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Sensitivity characteristics of long-period fiber gratings

SPIE Proceedings, 2005
Full characterization of the sensitivity of the LPFG is a precursor to practical device design, and knowledge of the sensitivity of the Long-period fiber gratings to the parameters of its physical environment processed is clearly important. We present a theoretical and experimental investigation into the sensitivity of long-period fiber gratings as a ...
Xinzhi Sheng, Ping Miao, Jiye Sheng, Chunzhen Chen   +3 more
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Dipole effect in long-period fiber grating

Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides, 2001
An effect of dipole by the UV-induced birefringence was analyzed using a long-period fiber grating. It was approximately 5.6% in UV-induced refractive index change due to the photosensitivity of Ge-related glass defects in our experiment.
M. Shigehara, S. Ishikawa, M. Harumoto, H. Suganuma   +3 more
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Fabrication of long-period fiber gratings with no harmonics

IEEE Photonics Technology Letters, 1999
We demonstrate a method to fabricate spectrally clean long-period gratings in optical fibers. Because the photosensitivity of glass is nonlinear, even a sinusoidal light pattern will generate harmonic gratings, and these higher order gratings can cause unwanted resonances.
V. Grubsky, A. Skorucak, J. Feinberg, D.S. Starodubov   +3 more
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Long-period fiber gratings in WDM applications

Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides, 2001
In this presentation we will discuss the properties of long-period gratings and aspects of their fabrication. We will also review devices based on long-period gratings including gain flatteners for fiber amplifiers.
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Fiber-optic liquid-level sensor using a long-period grating

Optics Letters, 2001
Ralph P Tatam, Stephen W James
exaly  

Analysis of the response of long period fiber gratings to external index of refraction

Journal of Lightwave Technology, 1998
A D Kersey
exaly  

Characteristics of Dissimilar-Fiber Long-Period Fiber Gratings

Frontiers in Optics 2016, 2016
Pengfei Wang, Thomas K. Gaylord
openaire   +1 more source