公开(公告)号：US3736045A

公开(公告)日：1973-05-29

申请号：US3736045D

申请日：1971-12-27

Applicant: IBM

Inventor： HEIDRICH P F ,  KUHN L ,  PENNINGTON K S

IPC: G02F1/01 ,  G02F1/295 ,  G02F1/32 ,  G02B5/14

CPC classification number: G02F1/2955 ,  G02F1/011 ,  G02F1/0134

Abstract: An optical guided wave modulator and digital deflector is described having a piezoelectric substrate with an amorphous film waveguide thereon. An interdigital periodic electrode structure is connected to the amorphous film and to a source of d.c. voltage. The voltage produces fringing fields which generate a periodic strain in the piezoelectric substrate. The compressional strain in the piezoelectric substrate extends into the amorphous film to produce a periodic variation of index of refraction which functions as a grating at the Bragg angle which deflects an optical wave traveling in the amorphous film.

Abstract translation: 描述了具有在其上具有非晶膜波导的压电基片的光导波调制器和数字偏转器。 叉指周期性电极结构连接到非晶膜和直流电源。 电压。 电压产生在压电衬底中产生周期性应变的边缘场。 压电衬底中的压缩应变延伸到非晶膜中，以产生折射率的周期性变化，该折射率用作布拉格角的光栅，其偏转在非晶膜中行进的光波。