OPTICAL FILTER

PROBLEM TO BE SOLVED: To provide an optical filter removing high order trapped mode of guided light without using microfabrication shorter than the wavelength of guided light. SOLUTION: Optical waveguides F11, F12 are alternately arranged on a substrate 10 and are connected so that a coupling effici...

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Bibliographische Detailangaben
Hauptverfasser:	UESUGI TOSHITSUGU, MIYAHARA TOSHIJI, MOCHIZUKI KEITA
Format:	Patent
Sprache:	eng
Schlagworte:	OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an optical filter removing high order trapped mode of guided light without using microfabrication shorter than the wavelength of guided light. SOLUTION: Optical waveguides F11, F12 are alternately arranged on a substrate 10 and are connected so that a coupling efficiency to a basic trapped mode becomes higher than the coupling efficiency to high order trapped mode or to the linear combination of the high order trapped mode. COPYRIGHT: (C)2011,JPO&INPIT