[1] ORTEGTA B,CAPMANY J,PASTOR D,et al.Full characterization of long periodic superstructure fiber Bragg grating in multichannel devices[A].LEOS'98 Lasers and Electro-Optics Society Annual Meeting (Vol.2)[C].Orlando,Florida,USA:IEEE,1998.354-355.
[3] EGGLETON B J,KRUG P A,POLADIAN L,et al.Long periodic superstructure fiber Bragg gratings in optical fiber[J].Elect.Lett,1994,30(19):1620-1622.
[4] IBSEN M,DURKIN M K,COLE M J,et al.Sinc-sampled fiber Bragg gratings for identical multiple wavelength operation[J].IEEE Photon.Technol.Lett,1998,10(16):842-844.
[5] Ku Znetsov M.Cascaded coupler Mach-Zehnder channel dropping filters for wavelength division multiplexed optical systems[J].J.Lightwave Technol,1994,12(2):226-230.