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

doi:10.1109/JLT.2010.2040458

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

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

9 Citations (Scopus)

Abstract

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 language	English
Article number	5382545
Pages (from-to)	898-904
Number of pages	7
Journal	Journal of Lightwave Technology
Volume	28
Issue number	6
DOIs	https://doi.org/10.1109/JLT.2010.2040458
Publication status	Published - 15 Mar 2010

Keywords

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

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

More information

10.1109/JLT.2010.2040458

Cite this

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abstract = "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.",

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T1 - Tilted moir fiber bragg grating optical filters with controllable passband and stopband

AU - Wong, Allan C.L.

AU - Giovinazzo, Marco

AU - Tam, Hwa Yaw

AU - Lu, Chao

AU - Peng, Gang Ding

PY - 2010/3/15

Y1 - 2010/3/15

N2 - 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.

AB - 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.

KW - Moiré resonance effect

KW - Optical communications

KW - Optical filter

KW - Tilted moiré fiber Bragg grating

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DO - 10.1109/JLT.2010.2040458

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

Abstract

Keywords

ASJC Scopus subject areas

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