Characteristics of Phase-Shifted Fiber Bragg Grating Inscribed by Fusion Splicing Technique and Femtosecond Laser Topics: Fiber Optics devices; Fiber Optics Technology; Ultrafast Electronics, Photonics and Optoelectronics In Proceedings of the 4th International Conference on Photonics, Optics and Laser Technology - Volume 1: OSENS, 356-360, 2016 , Rome, Italy