Widely Tunable Silicon Photonics Narrow-Linewidth Passband Filter Based on Phase-Shifted Waveguide Bragg Grating

被引：0

作者：

Falconi, Fabio ^{[1
]}

Porzi, Claudio ^{[2
]}

Sharp, Graham J. ^{[3
]}

Sorel, Marc ^{[3
]}

Bogoni, Antonella ^{[2
]}

机构：

[1] CNIT, Photon Networks & Technol Natl Lab, Pisa, Italy

[2] Scuola Super Sant Anna, TeCIP Inst, Pisa, Italy

[3] Univ Glasgow, Sch Engn, Glasgow, Lanark, Scotland

来源：

2018 INTERNATIONAL TOPICAL MEETING ON MICROWAVE PHOTONICS (MWP) | 2018年

基金：

英国工程与自然科学研究理事会;

关键词：

integrated optical filters; waveguide Bragg gratings; phase-shifted Bragg gratings; silicon photonics; thereto-optic effect;

D O I：

暂无

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A new approach for broad and efficient tuning of the narrow resonant transmission window in integrated phase shifted Bragg gratings realized in silicon waveguides, suitable for the photonic processing of microwave signals, is proposed and demonstrated. The method exploits local micro-heaters (MHs) for the tuning of the resonant cavity formed by the insertion of a phase-shift section within a uniform Bragg grating structure. Two different MHs geometries have been investigated. Wide tuning ranges of the passband filter with a narrow linewidth of 30 pm up to 7 nm, only limited by the BG stopband region width, for maximum MH absorbed power of 11 mW are observed.

引用

页数：4

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