supported by the National Natural Science Foundation of China (Nos.60771008 and 60837002);the Natural Science Foundation of Beijing (No.4082024);the Ph.D. Programs Foundation of Ministry of Education of China (No.20090009110003);the Foundation for the Returning Scholars (No.2008890)
A new method is presented to fabricate the triangular fiber Bragg grating(TFBG).The fabrication device is simple,only requires a single exposure and does not need to write complicated program.The transfer matrix metho...