Novel all-fiber bandpass filter based on hollow optical fiber

Author

Choi, S. ; Eom, T.J. ; Yu, J.W. ; Lee, B.H. ; Oh, K.

Author_Institution

Dept. of Inf. & Commun., Kwangju Inst. of Sci. & Technol., South Korea

Volume

14

Issue

12

fYear

2002

Firstpage

1701

Lastpage

1703

Abstract

We report an in-line all-fiber bandpass filter based on a hollow optical fiber (HOF) core mode blocker along with a long-period fiber grating (LPG) pair. It is theoretically and experimentally confirmed that selective core mode blocking at the HOF region located in the middle of the LPG pair could provide efficient passband channels corresponding to the resonant wavelengths of the LPGs. The filter characteristics in passbands and the nearfield patterns of guided modes in the proposed device are discussed.

Keywords

band-pass filters; diffraction gratings; optical communication equipment; optical fibre filters; WDM optical communication systems; all-fiber bandpass filter; guided mode nearfield patterns; hollow optical fiber; hollow optical fiber core mode blocker; long-period fiber grating pair; passband channels; resonant wavelengths; selective core mode blocking; Band pass filters; Fiber gratings; Optical devices; Optical fiber communication; Optical fiber devices; Optical fiber filters; Optical fibers; Optical filters; Optical scattering; Passband;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2002.804658

Filename

1058257