Interferometer measuring arrangement for superimposing two light waves, carries light waves within reference fiber conductor between two switching devices

摘要

Light waves are carried within an exclusive reference fiber conductor (4) between two switching devices (3,5) while sample fiber conductors (6,7) are extended to both sides of the first switching device (3). The first switching device couples the light waves from a light source (1) into the sample fiber conductor (6) and reference fiber conductor. The second switching device (5) superimposes the light waves from the reference fiber conductor and sample fiber conductors and leads the light waves to the detectors (10,11).