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Dual and triple output bandpass microwave photonic filter using a 3×3 collinear coupler

G. NING1,* , P. SHUM1, J. Q. ZHOU1

Affiliation

  1. Network Technology Research Centre, Nanyang Technological University, Research TechnoPlaza XFrontier Block 4th Storey 50 Nanyang Drive, Singapore 637553

Abstract

New structures that can realize dual and triple output coherent-free bandpass microwave photonic filter are presented. They are based on a Sagnac loop interferometer containing a phase modulator, a 3×3 collinear coupler and without nonreciprocal bias unit. Measured results demonstrate robust notch filter responses for DFB laser source or broadband source.

Keywords

Microwave photonics, Phase modulation, Sagnac loop interferometer, 3×3 collinear coupler.

Citation

G. NING, P. SHUM, J. Q. ZHOU, Dual and triple output bandpass microwave photonic filter using a 3×3 collinear coupler, Optoelectronics and Advanced Materials - Rapid Communications, 1, 7, July 2007, pp.353-355 (2007).

Submitted at: April 13, 2007

Accepted at: June 26, 2007