A fiber optic sensor apparatus includes an optical fiber, a fiber bend holder, and a sensing element. The optical fiber can be configured to form a transmit fiber path and a return fiber path by adhering the fiber bend holder to the center of the optical fiber in order to form a straight section between...http://www.google.de/patents/US7995873?utm_source=gb-gplus-sharePatent US7995873 - Fiber optic sensor apparatus
