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Fabrication of Prague Fiber Optic Gratings

This chapter presents the state of art about the fabrication technology of grating devices in different kinds of POFs and explores potential sensing application scenarios, focus on the fabrication of chirped POF FBG devices and the potential application of such devices. Principle and Technical Features of Prague Fiber Bragg Grating Sensors - AtGrating Technologies. Optical fiber grating is formed on the optical fiber by using the UV sensitivity of the silicon fiber, thus it is called fiber grating. FBG sensor is a type of optical fiber sensor, and its sensing. An apparatus and method for forming a Bragg grating on an optical fiber using a phase mask to diffract a beam of coherent energy and a lens combined with a pair of mirrors to produce two symmetrical virtual point sources of coherent energy in the plane of the optical fiber.