Plane-by-plane fabrication of fiber Bragg gratings in optical fibers using short-pulse femtosecond IR laser is proposed and demonstrated. By incorporating a cylindrical lens in the fabrication setup, a plane of index modification can be directly inscribed in fiber core by a single laser pulse through the proposed method. This plane-by-plane method simplifies the grating inscription process and allows for the fabrication of complicated grating structures.
Society of Photo-optical Instrumentation Engineers (SPIE)
25th International Conference on Optical Fiber Sensors 24-28 April 2017, Jeju, Republic of Korea: 103234M-1–103234M-4.