Abstract: A fiber optic based security system is disclosed, including a light emitter, a light detector, an optical fiber and a threshold detector. Light is injected at one end of the optical fiber and received at the other end. The optical fiber is looped or secured about an object to be protected. If someone attempts to steal the object by tampering with the optical fiber or cutting it altogether, the light received at the light detector will fall below a predetermined threshold. When this happens, the threshold detector is adapted to trigger an alarm, alerting the proper persons of the theft. Preferably, the system is contained in a portable housing, and the system is preferably useful for protecting objects located outside a building, such as a trailer, bicycle, motorcycle, snowmobile, etc., where conventional security systems would be prohibitive to install.

Abstract: A fiber optic based security system is disclosed, including a light emitter, a light detector, an optical fiber and a threshold detector. Light is injected at one end of the optical fiber and received at the other end. The optical fiber is looped or secured about an object to be protected. If someone attempts to steal the object by tampering with the optical fiber or cutting it altogether, the light received at the light detector will fall below a predetermined threshold. When this happens, the threshold detector is adapted to trigger an alarm, alerting the proper persons of the theft. Preferably, the system is contained in a portable housing, and the system is preferably useful for protecting objects located outside a building, such as a trailer, bicycle, motorcycle, snowmobile, etc., where conventional security systems would be prohibitive to install.