Tilted moir fiber bragg grating optical filters with controllable passband and stopband

Allan C.L. Wong, Marco Giovinazzo, Hwa Yaw Tam, Chao Lu, Gang Ding Peng

Research output: Journal article publicationJournal articleAcademic researchpeer-review

9 Citations (Scopus)


Controllable passband and stopband optical filters based on tilted moir fiber Bragg gratings (FBGs) are presented. The gratings are formed by combining two FBGs of equal period, with one of them tilted at a small angle with respect to the fiber axis. The spectral response consists of the phase-shifted, narrow resonance-dip main peak, and the discrete cladding modes. In this paper, we systematically and experimentally investigated the spectral characteristics of tilted moir FBGs. Experimental results demonstrated that, upon changing the tilt angle and grating length in different combinations, the grating and resonance-dip bandwidths, and the cladding modes characteristics, can be controlled and modified. These features enable the flexible design of optical filters with controllable passband and stopband.
Original languageEnglish
Article number5382545
Pages (from-to)898-904
Number of pages7
JournalJournal of Lightwave Technology
Issue number6
Publication statusPublished - 15 Mar 2010


  • Moiré resonance effect
  • Optical communications
  • Optical filter
  • Tilted moiré fiber Bragg grating

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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