SAGNAC INTERFEROMETER WITH COMPACT FIBER OPTICS

摘要

The invention relates to a Sagnac interferometer with a loop or in-line optical fiber. According to the invention, the interferometer comprises a hybrid integrated optical circuit (200) comprising at least a first electro-optical substrate (1) and a second transparent substrate (2) having a common interface (20), the first substrate (1 ) comprising a first optical waveguide (11), a second optical waveguide (12), the first optical waveguide (11) and the second optical waveguide (12) being connected to at least one end (61) of the optical fiber coil (6), an optical input-output waveguide (10) connected to a light source (4) and to a detection system (5), the second substrate (2) comprising at least one U-shaped optical waveguide (21) and the hybrid integrated optical circuit (200) comprising a Y-junction (26) with planar waveguide having a common branch (160) and two secondary branches (161, 162).