Results 261 to 270 of about 52,186 (314)

Fiber optic gyroscope with single mode fiber coil

8th Optical Fiber Sensors Conference, 1992
Fiber optic gyros (FOGs) are all solid state devices, compact, lightweight and highly reliable. These merits have attracted much attention and developments have been energetically implemented mainly for aerospace applications.
Shinji Motohara, Aritaka Ohno
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Optical field mapping using single-mode optical fibers

Applied Optics, 1978
A new method of measuring the complete optical field distribution (optical field mapping) is proposed and is applied to the measurement of Gaussian beam distribution at its beam waist. This method utilizes an interference technique and uses two single-mode optical fibers as flexible paths.
M, Liyama, T, Kamiya, H, Yanai
openaire   +2 more sources

Single-mode polymer optical fibers

2014 16th International Conference on Transparent Optical Networks (ICTON), 2014
The mechanical properties of polymer optical fibers (POF) make them very interesting candidates for fiber optical sensors. Today POFs are mainly used for short range data communication. These fibers have a very large core of 980 μm. This large core is beneficial for handling and maintenance in fiber networks.
Reinhard Caspary, Daniel Zaremba, Robert Evert, Simon Schutz, Sophia Mohl, Alexander Cichosch, Hans-Hermann Johannes, Wolfgang Kowalsky   +7 more
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Single-Mode Optical Fiber Characterization

Optical Engineering, 1985
The measurement of the relevant parameters of single-mode optical fibers (namely, cutoff wavelength, mode field diameter, chromatic dispersion, and refractive index profile) is discussed, with explicit reference both to the work carried out within the Comite Consultatif International Telephonique et Telegraphique (CCITT) and to original techniques ...
G. Coppa, B. Costa, P. Di Vita, U. Rossi
openaire   +1 more source

Single-mode fiber-optic demultiplexer

Soviet Journal of Quantum Electronics, 1987
A study was made of the properties of fused single-mode biconical couplers fabricated in a high-frequency electric discharge. A multiplexer–demultiplexer was constructed for the first time with an interval of 1.5 nm between the channels, channel isolation of 20 dB, and excess losses of 0.2 dB.
A G Bulushev, Yu V Gurov, V E Makhotkin, O G Okhotnikov, V G Pak, V P Shurukhin   +5 more
openaire   +1 more source

Nonmechanical optical switch for single-mode fibers

Applied Optics, 1982
This paper introduces a bistable nonmechanical optical switch for single-mode optical fibers. A l-input/2-output device for the l-microm wavelength range, the optical losses of the switch are independent of the polarization state in the input fiber. The insertion losses for the optical signal from the input fiber to the output fiber are 1.4 dB and the ...
M, Shirasaki, H, Nakajima, T, Obokata, K, Asama   +3 more
openaire   +2 more sources

All-chalcogenide single-mode optical fiber couplers

Optics Letters, 2019
We demonstrate the fabrication of all chalcogenide single-mode optical fiber couplers including broadband couplers, wavelength division multiplexers, and polarization beamsplitters. The functionality of each coupler is engineered with a careful design of geometry. As a result, broadband couplers can be set to any arbitrary coupling ratio.
Mohsen, Rezaei, Martin, Rochette
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Characterization of single-mode optical fiber filters

Applied Optics, 1981
The fabrication of narrowband highly reflecting filters in single-mode step-index fibers was reported recently by Hill et al. [Appl. Phys. Lett. 32, 647 (1978)]. The underlying effect on which these filters are based is a photoinduced refractive-index change in the GeO(2) used as a core dopant in SiO(2) fibers.
D K, Lam, B K, Garside
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Polarization optics of twisted single-mode fibers

Applied Optics, 1979
In twisted single-mode optical fibers the polarization of light is affected by an elastooptically induced optical activity and by a modification of any linear birefringence present. These effects are discussed theoretically and demonstrated experimentally. The activity/twist ratio is alpha/tau approximately 0.13 ...
R, Ulrich, A, Simon
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Single mode optical fiber sensors

1995
Single mode fibers are used for sensing when extreme sensitivity is required or when a well defined polarization of light is needed at a remote sensing point. Most sensors which use single mode fibers are of the intrinsic type (i.e. the action of the measurand on the light occurs within the fiber itself). The sensitivity advantage of single mode fibers
openaire   +1 more source