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公开(公告)号:EP1406114A4
公开(公告)日:2006-01-18
申请号:EP02717172
申请日:2002-04-16
申请人: NGK INSULATORS LTD
发明人: MITOMI OSAMU , ICHIGI TAKENORI , OSHIMA MASATSUGU , OKUMURA JUN , AOKI KENJI , YAMASHITA MASATAKA
CPC分类号: G02F1/3137 , G02F1/011 , G02F1/0147
摘要: An optical device, comprising a core layer (11) having a branch guided wave passage, a first clad layer (12) having the core layer stacked on a part of the surface thereof, a second clad layer (13) holding the core layer together with the first clad layer, a third clad layer (14) stacked on the second clad layer, heating electrodes (15, 16), and a substrate (17) having a heat sink function, wherein at least one of the core layer, first clad layer, and second clad layer is formed with an optical material having a positive refraction factor change coefficient, and the refraction factor of the third clad layer is made smaller than that of the second clad layer.
摘要翻译: 由核心层,与芯层接触的第一覆盖层,第二覆盖层,第三覆盖层和用于施加一定电压或提供一定电流的至少一个电极组成的光学器件。 第二覆层沉积在第三覆层上,芯层设置在第一覆层和第二覆层之间。 芯层,第一覆层,第二覆层和第三覆层由具有负折射率变化系数的材料构成,第三覆层的折射率小于第二覆层的折射率。
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公开(公告)号:EP2130575A4
公开(公告)日:2013-06-05
申请号:EP08711009
申请日:2008-02-08
申请人: NGK INSULATORS LTD
发明人: YAMASHITA MASATAKA
IPC分类号: B01D39/20 , B01D46/00 , B01D46/24 , B01J35/04 , C04B35/185 , C04B35/195 , C04B35/565 , C04B35/584 , C04B37/00 , C04B38/00 , C04B111/00 , F01N3/02
CPC分类号: B01D46/2474 , B01D46/2459 , B01D46/2466 , B01D46/247 , B01D2046/2481 , B01J35/04 , C04B35/185 , C04B35/195 , C04B35/565 , C04B35/584 , C04B38/0006 , C04B2111/00793 , C04B2111/0081 , Y10T428/24149 , C04B38/0054 , C04B38/0074
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公开(公告)号:EP1319973A4
公开(公告)日:2004-07-14
申请号:EP01965559
申请日:2001-09-06
申请人: NGK INSULATORS LTD
CPC分类号: G02F1/3137 , G02B6/1228 , G02B6/125
摘要: The spot size of light propagating through a crossing wave-guide (22) is set to be larger than the spot size of light propagating through optical input wave-guides (21a, 21b), optical output wave-guides (23a, 23b) or connection wave-guides (24a, 24b, 25a, 25b).
摘要翻译: 光学装置包括光输入波导,分支/交叉波导,光输出波导和将光输入和光输出波导连接到交叉/分支波导的连接波导。 通过交叉/分支波导传播的光的光斑尺寸大于通过光学输入波导,光学输出波导或连接波导传播的光的光斑尺寸。
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