Design and performance evaluation of narrowband rectangular optical filter based on stimulated Brillouin scattering in fiber

被引：6

作者：

Yi, Lilin ^{[1
]}

Wei, Wei ^{[1
]}

Shi, Mengyue ^{[1
]}

Jaouen, Yves ^{[2
]}

Hu, Weisheng ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, State Key Lab Adv Opt Commun Syst & Networks, Shanghai 200240, Peoples R China

[2] CNRS, Inst Telecom Telecom ParisTech, UMR 5141, 46 Rue Barrault, F-75634 Paris, France

来源：

PHOTONIC NETWORK COMMUNICATIONS | 2016年 / 31卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Rectangular optical filter; Stimulated Brillouin scattering; Optical signal processing; GAIN SPECTRUM; TRANSMISSION;

D O I：

10.1007/s11107-015-0520-4

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

We propose a rectangular optical filter based on stimulated Brillouin scattering (SBS) in fiber with tunable bandwidth from 50 MHz to 4 GHz at 15-MHz tuning resolution. The steep-edged rectangular shape of the filter is precisely controlled utilizing digital feedback compensation of the multi-tone pump light. The passband ripple is 1 dB by nonlinearity management of the pump light and using the fiber with a single Brillouin peak. The filter selectivity is improved to more than 40 dB by using pump-splitting dual-stage configuration. We analyze the noise performance of the proposed SBS filter and demonstrate a sub-band extraction of a multi-band orthogonal frequency division multiplexing (OFDM) signal. Furthermore, we validate the amplification performance with different gains for OFDM signal, which shows the potential capability of the filter in the fields of optical signal processing.

引用

页码：336 / 344

页数：9

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