OPTICAL DELAY LINE USING ROTATING PLANAR REFLECTOR

摘要

PURPOSE: An optical delay line using a rotating planar reflector is provided to increase the repetition rate of a time delay by including a reflection structure. CONSTITUTION: An optical delay line comprises a reflection structure. The reflection structure comprises a plurality of an V-type reflection surface(10). The reflecting surface forms an arbitrary angle. The reflection structure revolves around a rotary shaft at a constant angular velocity. The reflection structure changes the optical path difference of an incident light. The reflection structure reflects reversely the incident light. The optical delay line comprises a retro-reflector(50).