公开(公告)号：US3822929A

公开(公告)日：1974-07-09

申请号：US14748671

申请日：1971-05-27

Applicant: IBM

Inventor： LEAN E ,  HEIDRICH P ,  KUHN L

IPC: G02F1/125 ,  G02F1/16

CPC classification number: G02F1/125

Abstract: A tunable optical filter suitable for use in integrated optical circuits including the combination of a substrate having an optical waveguide such as a thin film thereon. Means such as an optical fiber or grating is provided for introducing light waves in a first mode into the waveguide. An acoustic transducer driven by a tunable electronic signal source is used to propagate acoustic waves on the surface of the waveguide. The optical and acoustic waves interact to produce another optical wave having a mode different than the original optical wave when phase matching conditions are satisfied. A mode filter is located in the waveguide to block the original optical wave and pass the second optical wave.

Abstract translation: 一种适用于集成光电路的可调光滤波器，包括其上具有薄膜等光波导的基板的组合。 提供诸如光纤或光栅的装置用于将第一模式的光波引入到波导中。 由可调电子信号源驱动的声换能器用于在波导表面上传播声波。 当满足相位匹配条件时，光和声波相互作用以产生具有与原始光波不同的模式的另一光波。 模式滤波器位于波导中以阻挡原始光波并通过第二光波。