High isolation, optical add-drop multiplexer

According to the invention, a first band-pass multidielectric filter (F1) receives optical signals, transmits at least one of them and reflects the untransmitted signals. An adding means (F2) inserts among them at least one other optical signal. A photoinduced Bragg grating filter (R) receives the s...

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Hauptverfasser:	HAMEL, ANDRE, DELEVAQUE, ERIC, LAVILLE, DANIEL
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY MULTIPLEX COMMUNICATION OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS
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creator	HAMEL ANDRE DELEVAQUE ERIC LAVILLE DANIEL
description	According to the invention, a first band-pass multidielectric filter (F1) receives optical signals, transmits at least one of them and reflects the untransmitted signals. An adding means (F2) inserts among them at least one other optical signal. A photoinduced Bragg grating filter (R) receives the signals reflected by the first filter and transmits them to the adding means and reflects any optical signal of the same wavelength as the signal transmitted by the first filter and which is liable to exist among the signals reflected by it. Application to optical telecommunications.
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An adding means (F2) inserts among them at least one other optical signal. A photoinduced Bragg grating filter (R) receives the signals reflected by the first filter and transmits them to the adding means and reflects any optical signal of the same wavelength as the signal transmitted by the first filter and which is liable to exist among the signals reflected by it. 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subjects	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY MULTIPLEX COMMUNICATION OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS
title	High isolation, optical add-drop multiplexer
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