Patent ID: 6037770
Filing Date: 2000-03-14
Classification: G01R,G02B

Abstract:
An optical magnetic field sensor probe for detecting a magnetic field, comprising:an input optical fiber for inputting light into the optical magnetic field sensor probe,a first drum lens,a polarizer,a magneto-optical device,an analyzer,a second drum lens, andan output optical fiber for emitting output light from the optical magnetic field sensor probe,the input optical fiber, the first drum lens, the polarizer, the magneto-optical device, the analyzer, the second drum lens and the output optical fiber being arranged in order along a light path such thatthe input optical fiber, the first drum lens, the magneto-optical device, the second drum lens and the output optical fiber together form a confocal optical system, andthe analyzer has transmission and polarization directions that are different than the polarizer.