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Synthesis of Flat-Top Bandpass Filters Using Two-Band Rejection Long-Period Fiber Gratings

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3 Author(s)
Hoonki Kim ; Yong-in Songdam Coll., Gyeonggi-do ; Jinho Bae ; Joohwan Chun

We propose a synthesis method based on the genetic algorithm for designing flat-top bandpass filters using two-band rejection long-period fiber grating (LPFG) filters. In the proposed method, the LPFG structure constructed by concatenating the two-band rejection filters is used as the initial parameter to easily design good flat-top bandpass filters in a wavelength range.

Published in:

Photonics Technology Letters, IEEE  (Volume:19 ,  Issue: 19 )