Jacketed optical fiber characteristics under lateral pressure

Yoshizawa, Noriko; Yabuta, T.; Kojima, N.; Negishi, Y.

doi:10.1364/ao.20.003146

Cited by 6 publications

(2 citation statements)

References 4 publications

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“…177 Temperature measurements can be made using twisted single-mode fiber waveguides. 169 Birefringent properties of materials can be used in the manufacture of optical parts (slabs, beams, etc.)…”

Section: Polarization Sensors With Induced Birefringencementioning

confidence: 99%

Optical and fiber-optic sensors (review)

Бусурин¹,

Семенов²,

Udalov³

1985

Sov. J. Quantum Electron.

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Kvantovaya Elektron. (Moscow) 12, 901-944 (May 1985)Optical, fiber-optic, and integrated optical sensors of physical effects are reviewed. The sensors are classified in accordance with their operating principle: amplitude, interference, and polarization sensors are considered. Descriptions are given of the construction of the sensors (or of their sensitive elements) which can react to mechanical quantities (displacement, force, acceleration), acoustic vibrations and pressure, electric and magnetic fields, electric current, temperature, angular velocity, etc. Some of their principal characteristics are described. Important parameters of known sensors are presented in a classified reference table.

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Section: Polarization Sensors With Induced Birefringencementioning

confidence: 99%

Optical and fiber-optic sensors (review)

Бусурин¹,

Семенов²,

Udalov³

1985

Sov. J. Quantum Electron.

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“…The total loss may become as high as several dB/km (5). In order to decrease the microbending losses the fiber is surrounded by a dual coating system consisting of a soft buffer and a hard top layer (10)(11)(12). The soft coating provides the soft compliant enclosure which decouples the fiber mechanically from its environment.…”

Section: Introductionmentioning

confidence: 99%

Optical fiber coatings: High modulus coatings for fibers with a low microbending sensitivity

Bouten

Broer

Jochem

et al. 1989

Polymer Engineering & Sci

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An important function of a n optical fiber coating is to prevent optical losses due to microbending induced by lateral forces on the fiber. To protect the fiber over a wide temperature range the modulus of the primary and the secondary coating should be low and high, respectively, and temperature independent.However, selecting the most appropriate organic coating materials introduces a new source of optical losses. Since the linear thermal expansion coefficients of silica and the organic coatings differ by about two orders of magnitude, thermal fluctuations will cause axial stresses. Cooling may then induce bending or buckling of the glass fiber in the soft primary coating, resulting in increased transmission losses. This effect is especially pronounced when a high-modulus secondary coating is selected with a glass transition temperature above 80°C. For this type of coating the difference in radial shrinkage between the buffer and the top coating during cooling from the curing temperature becomes important. The influence of primary coating thickness is discussed.

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Network formation by chain crosslinking photopolymerization and its applications in electronics

Kloosterboer

Lijten

Boots

Advances in Polymer Science

491

198

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The formation of densely crosslinked networks by chain crosslinking photopolymerization is discussed in relation to selected applications in the electronics industry. All of these applications make use of the high speed and of the latitude to meet other requirements by variation of the chemical structure of the monomers. The selection comprises: 1. The coating of optical fibers ; 2. The replication of optical discs; 3. The replication of aspherical lenses, used for laser read-out of these discs. Other important processes will only be mentioned briefly for the benefit of a discussion of more fundamental results that have been obtained during the study of the selected examples. These results relate to the crosslink density, the influence of light intensity on polymer structure, the relation between shrinkage and chemical conversion, a parallel with physical aging, kinetics during vitrification, the importance of chain transfer, the build-up of peroxides in photopolymers and computer simulation of network formation by crosslinking polymerization. This serves to illustrate the continuous interaction between development of applications and fundamental research.

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Jacketed optical fiber characteristics under lateral pressure

Cited by 6 publications

References 4 publications

Optical and fiber-optic sensors (review)

Optical and fiber-optic sensors (review)

Optical fiber coatings: High modulus coatings for fibers with a low microbending sensitivity

Network formation by chain crosslinking photopolymerization and its applications in electronics

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