Method for restoring or increasing photosensitivity in hydrogen or deuterium loaded large diameter optical waveguide

Method for restoring or increasing photosensitivity in hydrogen or deuterium loaded large diameter optical waveguide

The present invention provides a new and unique method for increasing the photosensitivity of a large diameter optical waveguide having a cross-section of at least about 0.3 millimeters. The method features loading the large diameter optical waveguide with a photosensitizing gas at a pressure at lea...

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Hauptverfasser: RUSSELL JERIN J, MACDOUGALL TREVOR W, TROLL JOHN R, PUTNAM MARTIN A, DAWSON JAY W
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Sprache:eng
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OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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creator RUSSELL JERIN J
MACDOUGALL TREVOR W
TROLL JOHN R
PUTNAM MARTIN A
DAWSON JAY W
description The present invention provides a new and unique method for increasing the photosensitivity of a large diameter optical waveguide having a cross-section of at least about 0.3 millimeters. The method features loading the large diameter optical waveguide with a photosensitizing gas at a pressure at least about 4000 pounds per square inch (PSI) at a temperature of at least about 250E Celsius. The photosensitizing gas may be hydrogen, Deuterium or other suitable gas. The method also includes the step of using a particular large diameter optical waveguide having a diameter of greater than 0.9 millimeters. The method may be used as part of a process for writing a Bragg grating in an inner core or a cladding of the large diameter optical waveguide.
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subjects OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
title Method for restoring or increasing photosensitivity in hydrogen or deuterium loaded large diameter optical waveguide
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