公开(公告)号：EP0919840B1

公开(公告)日：2008-04-23

申请号：EP98902764.4

申请日：1998-02-16

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION ,  NTT ELECTRONICS CORPORATION

发明人： INOUE, Yasuyuki, A-302, Sun-Green-Heights ,  KANEKO, Akimasa, 3-403, NTT-Shataku ,  TAKAHASHI, Hiroshi, B-302, Sun-Green-Heights ,  HANAWA, Fumiaki ,  HATTORI, Kuninori, 307, Port-Hill II ,  YOKOYAMA, Kenji, 304, Sanrei-Tsuchiura ,  SUZUKI, Senichi ,  SUMIDA. Shin ,  OKAMOTO, Katsunari ,  ISHII, Motohaya, A-301, Sun-Green-Heights ,  YAMADA, Hiroaki, 202, Highland-Court H ,  YOSHIDA, Takashi, 1-201, NTT-Higashiharahutaku ,  ARISHIMA, Koichi, 2-204, NTT-Shataku ,  EBISAWA, Fumihiro, 1681-3, Motokomezaki ,  NAKAHARA, Motohiro

IPC分类号： G02B6/12

CPC分类号： G02B6/12011 ,  G02B6/12014 ,  G02B6/12023 ,  G02B6/12028

公开(公告)号：EP0919840A1

公开(公告)日：1999-06-02

申请号：EP98902764.4

申请日：1998-02-16

申请人： Nippon Telegraph and Telephone Corporation ,  NTT Electronics Corporation

发明人： INOUE, Yasuyuki, A-302, Sun-Green-Heights ,  KANEKO, Akimasa, 3-403, NTT-Shataku ,  TAKAHASHI, Hiroshi, B-302, Sun-Green-Heights ,  HANAWA, Fumiaki ,  HATTORI, Kuninori, 307, Port-Hill II ,  YOKOYAMA, Kenji, 304, Sanrei-Tsuchiura ,  SUZUKI, Senichi ,  SUMIDA. Shin ,  OKAMOTO, Katsunari ,  ISHII, Motohaya, A-301, Sun-Green-Heights ,  YAMADA, Hiroaki, 202, Highland-Court H ,  YOSHIDA, Takashi, 1-201, NTT-Higashiharahutaku ,  ARISHIMA, Koichi, 2-204, NTT-Shataku ,  EBISAWA, Fumihiro, 1681-3, Motokomezaki ,  NAKAHARA, Motohiro

IPC分类号： G02B6/12

CPC分类号： G02B6/12011 ,  G02B6/12014 ,  G02B6/12023 ,  G02B6/12028

摘要： In a lightwaveguide circuit including a plurality of waveguides having different length, a material (10) having a temperature coefficient of a refractive index including a symbol different from that of a temperature coefficient of an effective refractive index of the waveguide (4) is charged into a groove (12) formed by removing the upper clad and the core from the waveguide (4), or a groove (12) formed by removing the upper clad, the core and the lower clad from the waveguide (4). A difference in length of the removed portions between adjacent waveguides is proportional to a difference in length of the waveguides which were not removed and remained.

摘要翻译： 在包括具有不同长度的多个波导的光波导电路中，具有包括不同于波导（4）的有效折射率的温度系数的符号的折射率的温度系数的材料（10）被装入 通过从波导（4）去除上包层和芯而形成的沟槽（12），或者通过从波导（4）去除上包层，芯和下包层而形成的沟槽（12）。 相邻波导之间的去除部分的长度差异与未被去除和残留的波导的长度差成比例。

公开(公告)号：EP1775609B1

公开(公告)日：2017-03-22

申请号：EP05767300.6

申请日：2005-08-01

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： SAIDA, Takashi ,  SAKAMAKI, Yohei ,  HASHIMOTO, Toshikazu ,  KITOH, Tsutomu ,  TAKAHASHI, Hiroshi ,  YANAGISAWA, Masahiro ,  SUZUKI, Senichi ,  HIDA, Yasuhiro ,  ISHII, Motohaya ,  TAMURA, Munehisa

IPC分类号： G02B6/14 ,  G02B6/122 ,  G02B6/28 ,  G02B6/12

CPC分类号： G02B6/12011 ,  G02B6/1228 ,  G02B6/2804