Title :
Broad-band tunable all-fiber bandpass filter based on hollow optical fiber and long-period grating pair
Author :
Choi, S. ; Eom, T.J. ; Jung, Y. ; Lee, B.H. ; Lee, Jhang W. ; Oh, K.
Author_Institution :
LG Electron. PRC, Kyunggi-Do, South Korea
Abstract :
We report a tunable all-fiber bandpass filter based on a short hollow optical fiber serially concatenated between a pair of long-period fiber gratings. With novel core mode blocking in the hollow core fiber and its optimal design, the device showed a low insertion loss of 1.5 dB and broad-band passband tuning range of 84.3 nm covering both S- and C-band.
Keywords :
band-pass filters; diffraction gratings; optical design techniques; optical fibre communication; optical fibre filters; optical fibre losses; optical tuning; wavelength division multiplexing; 1.5 dB; all-fiber bandpass filter; broadband filter; core mode blocking; fiber gratings; hollow optical fiber; insertion loss; long-period grating pair; optical fiber communications; optimal design; passband tuning range; tunable filter; wavelength division multiplexing; Band pass filters; Concatenated codes; Fiber gratings; Insertion loss; Optical fiber communication; Optical fiber devices; Optical fiber filters; Optical fiber sensors; Optical fibers; Resonance; Hollow optical fibers (HOFs); long-period fiber gratings (LPGs); optical fiber communications; optical fiber devices; tunable bandpass filters (BPFs);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.838301
