ALIGNMENT AND IMAGING SYSTEM FOR WRITING BRAGG GRATINGS

ALIGNMENT AND IMAGING SYSTEM FOR WRITING BRAGG GRATINGS

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: TREVOR, W. MACDOUGALL, DUANE, J. RODRIGUEZ, JOHN, R. TROLL, FREDERICK FALERO, JERIN, J. RUSSELL, FRANCESCO BIRRITTA, JOSEPH, F. PINTO, MINFU LU
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OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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creator TREVOR, W. MACDOUGALL
DUANE, J. RODRIGUEZ
JOHN, R. TROLL
FREDERICK FALERO
JERIN, J. RUSSELL
FRANCESCO BIRRITTA
JOSEPH, F. PINTO
MINFU LU
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 250° 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 core more than 1000 microns from the surface thereof. 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 ALIGNMENT AND IMAGING SYSTEM FOR WRITING BRAGG GRATINGS
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