Title:
DIGITAL THERMO-OPTIC OPTICAL SWITCH
Document Type and Number:
Japanese Patent JP3478751
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a digital thermooptic optical switch which permits to obtain the performance equivalent to standard with small operation power and is also reduced in power consumption of an optical cross-connect system and an optical add-drop multiplexer.
SOLUTION: This is a digital thermooptic optical switch formed of a Y- branching optical waveguide consisting of a linear optical waveguide 11, a tapered optical waveguide 12, and a branching optical waveguide 13, and a thin film heater 15 along the Y-branching optical waveguide. In this case, the thin film heater 15 part in an area B along the tapered optical waveguide 12 is formed to be gradually tapered in width (maximum width W1 → minimum width W0) from the linear optical wveguide 11 side toward the branching optical waveguide 13.
Inventors:
Naoki Ohba
Takashi Kurihara
Takashi Kurihara
Application Number:
JP4024699A
Publication Date:
December 15, 2003
Filing Date:
February 18, 1999
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
G02F1/313; G02F1/01; (IPC1-7): G02F1/313
Domestic Patent References:
| JP9211501A | ||||
| JP950053A |
Other References:
Ｙ．Ｈｉｄａ ｅｔ ａｌ，Ｅｌｅｃｔｒｏｎｉｃｓ Ｌｅｔｔｅｒｓ，１９９７年 ３月２７日，ｖｏｌ．３３，ｎｏ．７，ｐｐ．６２６−６２７
大庭直樹 他，シリコーン光導波路を用いたデジタル熱光学スイッチ，１９９７年電子情報通信学会総合大会論文集，１９９７年 ３月，エレクトロニクス１、Ｃ−３−１１，第１９６頁
大庭直樹 他，シリコーン光導波路を用いたデジタル熱光学スイッチ，１９９７年電子情報通信学会総合大会論文集，１９９７年 ３月，エレクトロニクス１、Ｃ−３−１１，第１９６頁
Attorney, Agent or Firm:
Yoshikazu Tani (1 person outside)