公开(公告)号：EP0092831A3

公开(公告)日：1986-03-12

申请号：EP83104040

申请日：1983-04-25

申请人： SUMITOMO ELECTRIC INDUSTRIES LIMITED

发明人： Yoshida, Kenichi c/o Sumitomo Electric ,  Ono, Kimizo c/o Sumitomo Electric ,  Yokohara, Takashi c/o Sumitomo Electric ,  Nishiwaki, Yoshikazu c/o Sumitomo Electric ,  Tsuno, Koichi c/o Sumitomo Electric

IPC分类号： G01C19/64 ,  G02F01/21

CPC分类号： G01C19/722

摘要： An optical fiber gyro is improved by providing the various optical elements on a single substrate. Optical wave-guides are formed on the substrate by providing diffusion regions, and light branching means for dividing a laser light beam may take the form of a grating, a directional coupler, etc. The light source is typically a laser device bonded to the substrate and the light receiver a photodiode. These elements may be made monolithically with the substrate when the latter is a compound semiconductor such as e.g. GaAs. If desired, one of the wave-guides may be associated with a phase shifter or modulator for detection purposes.