Optical magnetic-field sensor and method of producing the same.

摘要

An optical magnetic-field sensor includes a base (8) fixed relative to distal ends of optical fibers (2) inserted in the sensor, and optical parts (5,7) for transmitting optical signals between the distal ends of the optical fibers (2) and the optical parts and between an optical element (6) and the optical parts. The optical signals are collimated between the optical parts and the distal ends of the optical fibers by spherical lenses (12) optically aligned with the distal ends of the optical fibers, with synthetic resin members (13) filled in clearances between the distal ends of the optical fibers and the respective spherical lenses. The arrangement facilitates the alignment of optical axes of the optical fibers and the spherical lenses.