OPTICAL WAVEGUIDE

To suppress temporal change in element characteristics of an optical device having an optical waveguide with a heater.SOLUTION: An optical waveguide 2 provided herein comprises a first cladding 30a located between a second cladding 30b having a heater mounted thereon and a core 28, the first claddin...

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Bibliographische Detailangaben
1. Verfasser:	KIMURA TOKUJI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	To suppress temporal change in element characteristics of an optical device having an optical waveguide with a heater.SOLUTION: An optical waveguide 2 provided herein comprises a first cladding 30a located between a second cladding 30b having a heater mounted thereon and a core 28, the first cladding having a lower fixed charge density than that of the second cladding.SELECTED DRAWING: Figure 3 【課題】ヒータ付き光導波路を有する光デバイスの素子特性の経時変化を抑制する。【解決手段】光導波路２は、ヒータが載置された第２クラッド３０ｂとコア２８の間に、第２クラッドより固定電荷密度が低い第１クラッド３０ａを有する。【選択図】図３