Results 301 to 310 of about 608,125 (335)
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Journal of Electronic Imaging, 1992
Several possibilities based on the principles of scattering and polarization of light in liquid crystals (LCs) and PLZT ceramics were studied for the replacement of mechanical shutters and attenuators in optical instruments. A scatter-mode LC was selected as the active material, and two modules were developed for fiber optic attenuator applications. In
Karppinen, Arto +3 more
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Several possibilities based on the principles of scattering and polarization of light in liquid crystals (LCs) and PLZT ceramics were studied for the replacement of mechanical shutters and attenuators in optical instruments. A scatter-mode LC was selected as the active material, and two modules were developed for fiber optic attenuator applications. In
Karppinen, Arto +3 more
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16th Congress of the International Commission for Optics: Optics as a Key to High Technology, 1989
1. Introduction.- 2. Wave Motion.- 2.1 What is Wave Motion?.- 2.2 Dispersive and Nonlinear Effects of a Wave.- 2.3 Solitary Waves and the Korteweg de Vries Equation.- 2.4 Solution of the Korteweg de Vries Equation.- 3. Lightwave in Fibers.- 3.1 Polarization Effects.- 3.2 Plane Electromagnetic Waves in Dielectric Materials.- 3.3 Kerr Effect and Kerr ...
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1. Introduction.- 2. Wave Motion.- 2.1 What is Wave Motion?.- 2.2 Dispersive and Nonlinear Effects of a Wave.- 2.3 Solitary Waves and the Korteweg de Vries Equation.- 2.4 Solution of the Korteweg de Vries Equation.- 3. Lightwave in Fibers.- 3.1 Polarization Effects.- 3.2 Plane Electromagnetic Waves in Dielectric Materials.- 3.3 Kerr Effect and Kerr ...
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Optical fibers for communication
IEEE Journal of Quantum Electronics, 1973The transparency of glass fibers in the visible and near infrared-improved beyond all expectations by recent breakthroughs-seems now sufficient to transmit optical signals unprocessed over miles. No wonder that efforts have intensified all over the world to utilize fibers in future communication systems.
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2006
Publisher Summary This chapter focuses on silica-based optical fibers, which are the most important transmission media for long-distance and large-capacity optical communication systems. A distinguishing feature of these optical fibers is their low loss characteristics.
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Publisher Summary This chapter focuses on silica-based optical fibers, which are the most important transmission media for long-distance and large-capacity optical communication systems. A distinguishing feature of these optical fibers is their low loss characteristics.
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IFAC Proceedings Volumes, 1979
Abstract With the development of low loss single mode optical fiber waveguides, it is possible to construct a gyroscope using optical fibers. The configuration is a multi-turn Sagnac interferometer. Light from an external source is split and injected into the fiber ends, travels in clockwise and counterclockwise directions and is recombined to form ...
L.D. Weaver, G.J. Morris, R.W. Shorthill
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Abstract With the development of low loss single mode optical fiber waveguides, it is possible to construct a gyroscope using optical fibers. The configuration is a multi-turn Sagnac interferometer. Light from an external source is split and injected into the fiber ends, travels in clockwise and counterclockwise directions and is recombined to form ...
L.D. Weaver, G.J. Morris, R.W. Shorthill
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Optical Fibers for Fiber Optic Gyroscopes
2019With the possible exception of nonsilica glasses, each time a new fiber technology has emerged, someone has applied it to FOGs and reported beneficial results. The development of the FOG has essentially tracked that of commercial optical fibers for more than 40 years, running parallel since 1976, when Vali and Shorthill first demonstrated the concepts ...
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Transactions of the Indian Ceramic Society, 2014
Optical fiber is now the backbone of present days’ telecommunications network. The basic fiber material is high purity silica glass. Most of the technologies are now perfected and research is now directed towards new highly transparent materials for getting large bandwidth.
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Optical fiber is now the backbone of present days’ telecommunications network. The basic fiber material is high purity silica glass. Most of the technologies are now perfected and research is now directed towards new highly transparent materials for getting large bandwidth.
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SPIE Proceedings, 1984
The engeneerized prototipe of a fiber-optic sensor useful for vibration measurement in hostile environments is presented.The vibrometer is essentially based on a "differential" heterodyne Michelson-type interferometer in which the reference beam and the sensing beam are both guided, with orthogonal polarization, by the same single-mode polarization ...
MARTINELLI, MARIO +2 more
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The engeneerized prototipe of a fiber-optic sensor useful for vibration measurement in hostile environments is presented.The vibrometer is essentially based on a "differential" heterodyne Michelson-type interferometer in which the reference beam and the sensing beam are both guided, with orthogonal polarization, by the same single-mode polarization ...
MARTINELLI, MARIO +2 more
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1984
In the following sections, we shall discuss a variety of field and laboratory measurements on telecommunication fibers, largely excluding sources, detectors and electronics. Certain of these measurements, especially bandwidth and attenuation, will often yield different results for different launching conditions.
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In the following sections, we shall discuss a variety of field and laboratory measurements on telecommunication fibers, largely excluding sources, detectors and electronics. Certain of these measurements, especially bandwidth and attenuation, will often yield different results for different launching conditions.
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IEEE Journal of Quantum Electronics, 1982
A state of the art review of nonsilica based infrared fibers is presented. Two types of fiber materials have been investigated--crystals and glasses. Crystal fiber work appears to be focused on development of short haul CO/sub 2/ laser power delivering lines at 10.6 µm.
T. Miyashita, T. Manabe
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A state of the art review of nonsilica based infrared fibers is presented. Two types of fiber materials have been investigated--crystals and glasses. Crystal fiber work appears to be focused on development of short haul CO/sub 2/ laser power delivering lines at 10.6 µm.
T. Miyashita, T. Manabe
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