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   Vol.E86-C   No.5   pp.705-708
Publication Date: 2003/05/01
Online ISSN: 
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,  

Full Text: PDF(855.2KB)>>
Buy this Article

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.