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Fabrication of a Novel Core Mode Blocker and Its Application to Tunable Bandpass Filters
Young-Geun HAN Un-Chul PAEK Youngjoo CHUNG
IEICE TRANSACTIONS on Electronics
Publication Date: 2003/05/01
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Joint Special Issue on Recent Progress in Optoelectronics and Communications)
long-period fiber gratings, core mode blocker, bandpass filter,
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We will present a novel core mode blocker fabricated with hydrogen loaded Ge-B co-doped fiber exposed to the electric arc discharge using local heat exposure. Tunable bandpass filter based on cascaded LPFGs with a core mode blocker inserted between the LPFGs will be also described. The characteristics are: 6.5-nm bandwidth, 30-nm tuning range, and 15-dB dynamic range, respectively. It can be very useful for application to wavelength stabilization and physical sensors.