Signal interference RF photonic bandstop filter

被引：27

作者：

Aryanfar, Iman ^{[1
]}

Choudhary, Amol ^{[1
]}

Shahnia, Shayan ^{[1
]}

Pagani, Mattia ^{[1
]}

Liu, Yang ^{[1
]}

Marpaung, David ^{[1
]}

Eggleton, Benjamin J. ^{[1
]}

机构：

[1] Univ Sydney, IPOS, Sch Phys, Ctr Ultrahigh Bandwidth Devices Opt Syst CUDOS, Sydney, NSW 2006, Australia

来源：

OPTICS EXPRESS | 2016年 / 24卷 / 13期

基金：

澳大利亚研究理事会;

关键词：

STIMULATED BRILLOUIN-SCATTERING; NOTCH FILTER; SHARP-REJECTION; MICROWAVE;

D O I：

10.1364/OE.24.014995

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In the microwave domain, signal interference bandstop filters with high extinction and wide stopbands are achieved through destructive interference of two signals. Implementation of this filtering concept using RF photonics will lead to unique filters with high performance, enhanced tuning range and reconfigurability. Here we demonstrate an RF photonic signal interference filter, achieved through the combination of precise synthesis of stimulated Brillouin scattering (SBS) loss with advanced phase and amplitude tailoring of RF modulation sidebands. We achieve a square-shaped, 20-dB extinction RF photonic filter over a tunable bandwidth of up to 1 GHz with a central frequency tuning range of 16 GHz using a low SBS loss of similar to 3 dB. Wideband destructive interference in this novel filter leads to the decoupling of the filter suppression from its bandwidth and shape factor. This allows the creation of a filter with all-optimized qualities. (C) 2016 Optical Society of America

引用

页码：14995 / 15004

页数：10

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