Title : 
Bandwidth tunable band rejection filter based on helicoidal fiber grating pair of opposite hellicity
         
        
            Author : 
Shin, W. ; Yu, B.-A. ; Lee, Y.L. ; Eom, T.J. ; Noh, Y.-C. ; Ko, D.-K. ; Lee, J. ; Oh, K.
         
        
            Author_Institution : 
Advanced Photonics Research Institute, GIST, 1 Oryong-dong, Puk-gu, Gwangju, 500-712, KOREA
         
        
        
        
        
        
            Abstract : 
We propose a new type of all-fiber bandwidth tunable rejection filter using cascaded helicoidal long-period fiber gratings in single-mode optical fiber and report controllable broadband rejection characteristic with low insertion loss and polarization dependent loss.
         
        
            Keywords : 
Bandwidth; Clocks; Fiber gratings; Fiber lasers; Filters; Optical fiber couplers; Optical fiber polarization; Optical fibers; Resonance; Tunable circuits and devices;
         
        
        
        
            Conference_Titel : 
Quantum Electronics and Laser Science Conference, 2007. QELS '07
         
        
            Conference_Location : 
Baltimore, MD, USA
         
        
            Print_ISBN : 
978-1-55752-834-6
         
        
        
            DOI : 
10.1109/QELS.2007.4431308