Dependence on Grating Length of Transmission Spectra of Long-Period Fiber Bragg Grating
Yusuke SATO ,Takashi YOKOUCHI, Hiromu IWATA, Yosihumi SUZAKI and Seiki EJIMA
Abstract:We have designed mechanically induced long period fiber grating (LPFG)in which the grating length can be changed to any value up to 16 cm as we desire. Measurement of the dependence of the transmission spectrum on the grating length showed that the spectrum became sharper as the grating length was increased until about 10 cm, and beyond this length the sharpness of the spectrum remained almost the same. Key Words:Long-Period Fiber Bragg Grating, Grating length