Fiber Bragg grating inscription assisted by a spatial light modulator
А. В. Достовалов, Alexey Kokhanovskiy, Evgeniy V. Golikov, A.A. Revyakin, Zh. Munkueva, D. S. Kharenko, Sergey A. Babin
Abstract
In this Letter, we proposed a new technique for point-by-point fiber Bragg grating (FBG) writing in a static fiber by using a spatial light modulator to control the position of the focal point inside the fiber core. Various types of short-length FBGs (uniform, phase-shifted, and apodized) were demonstrated by this inscription technique. Moreover, the capability to tailor the transverse dimension of a grating pitch from a single point to more complex shapes, such as a wide plane covering a whole fiber core or a transverse ring, was shown.
Topics & Concepts
Fiber Bragg gratingOpticsMaterials scienceApodizationSpatial light modulatorPHOSFOSCore (optical fiber)Graded-index fiberFiberGratingPolarization-maintaining optical fiberLong-period fiber gratingTransverse planeFiber optic sensorOptical fiberPhysicsEngineeringComposite materialStructural engineeringAdvanced Fiber Optic SensorsPhotonic and Optical DevicesPhotonic Crystal and Fiber Optics