An on-vehicle connector unit to be attached to a partition through which a cabin side and a vehicle body side are partitioned comprises a case 40 having a tubular part 41 and a front surface plate part 42 located at a front end of the tubular part 41, a ci...

Totally six polarization-maintaining optical fibers having the same beat length are arranged at both ends of a single-mode optical fiber and both ends of a single-mode optical fiber coil, respectively. An angle between a principal axis of polarization in a...

A charging connector comprises a lock lever having a latch, a cooperation portion, a switch mechanism and a temporary maintenance mechanism. The latch is movable between an engageable position and a released potion via a predetermined position. The switch ...

A light source (10) is connected through a single mode optical fiber (51) and a coupler (52) to one end of a polarization maintaining optical fiber (54), the other end of which is connected to a polarizing optical waveguide (15) of an optical integrated ci...

The gyroscope has an optical system that has a fiber optic coupler (52) and single mode optical fibers (51,53) connected from a light source (10) to an optical integrated circuit (14). A polarization maintaining optical fiber (54) is connected to the input...