Birefringent crystal Mach-Zehnder interferometer

A birefringent Mach-Zehnder interferometer (MZI) is provided for optically sensing a small fluctuation from an un-polarized light beam. The birefringent MZI includes first and second birefringent crystals arranged coaxially, the first crystal to receive the beam; and first and second 45° polarizers...

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1. Verfasser:	Spence Scott E
Format:	Patent
Sprache:	eng
Schlagworte:	MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS TESTING
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creator	Spence Scott E
description	A birefringent Mach-Zehnder interferometer (MZI) is provided for optically sensing a small fluctuation from an un-polarized light beam. The birefringent MZI includes first and second birefringent crystals arranged coaxially, the first crystal to receive the beam; and first and second 45° polarizers positioned behind respective the first and second crystals. The first crystal divides the beam into first ordinary and extraordinary rays. The first polarizer converts the first rays into first 45° rays. The second crystal divides the first 45° rays into second ordinary, extraordinary and recombination rays. The second polarizer converts the second rays into second 45° rays.
format	Patent
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The birefringent MZI includes first and second birefringent crystals arranged coaxially, the first crystal to receive the beam; and first and second 45° polarizers positioned behind respective the first and second crystals. The first crystal divides the beam into first ordinary and extraordinary rays. The first polarizer converts the first rays into first 45° rays. The second crystal divides the first 45° rays into second ordinary, extraordinary and recombination rays. The second polarizer converts the second rays into second 45° rays.</abstract><oa>free_for_read</oa></addata></record>
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subjects	MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS TESTING
title	Birefringent crystal Mach-Zehnder interferometer
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