Optical control element and its production

Abstract

Abstract Translated from Japanese (57)【要約】 【目的】 結晶板の温度上昇が少なく、光損失、位相ず れ、波形歪の少ない光制御素子およびその製造方法の提 供を目的とする。 【構成】 電気光学効果を示す結晶板１の主表面上に結 晶板１より屈折率の大なるマッハツェンダ型の光導波路 ２を設け、一方の光導波路２上にアース電極３を設け、 他方の光導波路２上に信号電極４を設け、信号電極４に 結合電極１１を接続し、結合電極１１に導入電極１２を 接続した。 (57) [Abstract] [Purpose] An object of the present invention is to provide an optical control element having a small temperature rise of a crystal plate, an optical loss, a phase shift, and a waveform distortion, and a manufacturing method thereof. A Mach-Zehnder type optical waveguide 2 having a refractive index larger than that of the crystal plate 1 is provided on the main surface of the crystal plate 1 exhibiting an electro-optical effect, and an earth electrode 3 is provided on one of the optical waveguides 2. The signal electrode 4 was provided on the other optical waveguide 2, the coupling electrode 11 was connected to the signal electrode 4, and the introduction electrode 12 was connected to the coupling electrode 11.

Inventors

• 👤 Yoshio Sugihara
• 👤 美穂 杉原

Bibliographic Details