LIGHT DELAYING UNIT

LIGHT DELAYING UNIT

PROBLEM TO BE SOLVED: To provide a light delaying unit capable of varying delay quantities at high accuracy. SOLUTION: When air is supplied to an air cylinder 6 as a bobbin moving mechanism, the interval between both bobbins 2, 4 is expanded. When the interval between them is expanded, since a strai...

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Hauptverfasser: TAKASUGI SATORU, NASUNO KOKI, OSONO KAZUMASA
Format: Patent
Sprache:eng
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OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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creator TAKASUGI SATORU
NASUNO KOKI
OSONO KAZUMASA
description PROBLEM TO BE SOLVED: To provide a light delaying unit capable of varying delay quantities at high accuracy. SOLUTION: When air is supplied to an air cylinder 6 as a bobbin moving mechanism, the interval between both bobbins 2, 4 is expanded. When the interval between them is expanded, since a strain in a longitudinal direction is applied to an optical fiber 7, the length of the optical fiber 7 is substaially lengthened and a light propagating in the inside of the optical fiber 7 is delayed. The delay quantity is changed because the pull length of the optical fiber 7 is changed by changing the air supplying amount of the air cylinder 6. When the bobbins 2, 4 are housed in a heat insulating container together with the air cylinder 6, the optical fiber 7 is hardly influenced by the temp. change of the outside to stabilize the length of the optical fiber 7 and, then, the reliability of a light delaying unit 8 is enhanced.
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subjects OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
title LIGHT DELAYING UNIT
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