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http://dx.doi.org/10.3807/JOSK.2011.15.2.202

Design of Tunable Flat-top Bandpass Filter Based on Two Long-period Fiber Gratings and Core Mode Blocker  

Bae, Jin-Ho (Department of Ocean System Engineering, Jeju National University)
Bae, Jun-Kye (Fiber Access 3 Team, LG-Ericsson CO., Ltd. LG R&D Complex)
Lee, Sang-Bae (Nanophotonics Research Center, KIST)
Publication Information
Journal of the Optical Society of Korea / v.15, no.2, 2011 , pp. 202-206 More about this Journal
Abstract
We propose a tunable flat-top bandpass filter to pass light in a customized wavelength band by using long-period fiber gratings (LPFG) structure. The LPFG structure is composed of a core mode blocker in between two LPFGs. The bandpass spectrum of the proposed structure is obtained in overlapped wavelength band of two LPFGs operating on the same modes. To analyze the properties, we introduce a mathematical matrix model for the structure. We theoretically demonstrate flexibility of the flat-top bandpass filter with various bandwidths.
Keywords
Flat-top bandpass; Long-period fiber gratings; Core mode blocker; Matrix model;
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Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By Web Of Science : 2  (Related Records In Web of Science)
Times Cited By SCOPUS : 2
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