Zhou Qian,Ning Ti-gang,Pei Li,Li Chao.Spectral characterization of fiber Bragg grating with etched fiber cladding[J].Optoelectronics Letters,2012,8(5):328-331
Spectral characterization of fiber Bragg grating with etched fiber cladding
Author NameAffiliation
Zhou Qian Key Lab. of All Optical Network and Advanced Telecommunication Network, Ministry of Education, Beijing Jiaotong University, Beijing 100044, China 
Ning Ti-gang Key Lab. of All Optical Network and Advanced Telecommunication Network, Ministry of Education, Beijing Jiaotong University, Beijing 100044, China 
Pei Li Key Lab. of All Optical Network and Advanced Telecommunication Network, Ministry of Education, Beijing Jiaotong University, Beijing 100044, China 
Li Chao Key Lab. of All Optical Network and Advanced Telecommunication Network, Ministry of Education, Beijing Jiaotong University, Beijing 100044, China 
Abstract:
      A new method is presented to tune Bragg wavelength slightly by using hydrofluoric acid to etch fiber cladding. The spectral characteristics before and after etching and the change properties of Bragg wavelength are studied. Cladding modes are reduced during the etching process. High-order cladding modes are converted into radiation modes, and energy of cladding modes is coupled to the outside. As the cladding radius decreases, the Bragg wavelength shifts to longer direction. Experimental results show that this method can tune Bragg wavelength slightly, and the tunable range is 0.002 −0.120 nm.
Hits: 4246
Download times: 722
This work has been supported by the National Natural Science Foundation of China (Nos.60837002 and 61177069), the Ph.D. Programs Foundation of Ministry of Education of China (No.20090009110003), and the Fundamental Research Funds for the Central Universities (No.2011YJS219).
View Full Text    Download reader