Spectral Analysis based on Stimulated Brillouin Scattering Effect

Optical filters are widely used in many applications, including optical communication, spectroscopy, electronics and optical sensors. The Microwave Photonic Filter (MPF) based on Stimulated Brillouin Scattering (SBS) effect not only has the advantages of low threshold and high gain, but also has the...

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Main Authors: GUO Li-jun, TAN Zhong-wei
Format: Article
Language:zho
Published: 《光通信研究》编辑部 2023-02-01
Series:Guangtongxin yanjiu
Subjects:
Online Access:http://www.gtxyj.com.cn/thesisDetails#10.13756/j.gtxyj.2023.01.007
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author GUO Li-jun
TAN Zhong-wei
author_facet GUO Li-jun
TAN Zhong-wei
author_sort GUO Li-jun
collection DOAJ
description Optical filters are widely used in many applications, including optical communication, spectroscopy, electronics and optical sensors. The Microwave Photonic Filter (MPF) based on Stimulated Brillouin Scattering (SBS) effect not only has the advantages of low threshold and high gain, but also has the characteristics of reconfiguration and tunability. In this paper, we apply MPF to spectral analysis. Using the tunability of the filter, the spectrum of the whole signal can be measured. And the different frequency components of the signal can be extracted by time-sharing. By setting the center frequency of the swept laser in the pump branch of the filter, the output power of the filter is measured by the optical spectrum analyzer after SBS effect generating by the pump excitation, so as to analyze the spectrum of the signal light. The results show that with the increase of pump power, the filter gain and Out of Band Rejection Ratio (OOBR) first increase and then decrease. The inflection point is about 5 dBm and the dynamic range of the filter is from -35 to -20 dBm.
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spelling doaj.art-bf1b0a0e77aa4f92a88fdf1db987514b2024-05-06T09:51:00Zzho《光通信研究》编辑部Guangtongxin yanjiu1005-87882023-02-01586233250531Spectral Analysis based on Stimulated Brillouin Scattering EffectGUO Li-junTAN Zhong-weiOptical filters are widely used in many applications, including optical communication, spectroscopy, electronics and optical sensors. The Microwave Photonic Filter (MPF) based on Stimulated Brillouin Scattering (SBS) effect not only has the advantages of low threshold and high gain, but also has the characteristics of reconfiguration and tunability. In this paper, we apply MPF to spectral analysis. Using the tunability of the filter, the spectrum of the whole signal can be measured. And the different frequency components of the signal can be extracted by time-sharing. By setting the center frequency of the swept laser in the pump branch of the filter, the output power of the filter is measured by the optical spectrum analyzer after SBS effect generating by the pump excitation, so as to analyze the spectrum of the signal light. The results show that with the increase of pump power, the filter gain and Out of Band Rejection Ratio (OOBR) first increase and then decrease. The inflection point is about 5 dBm and the dynamic range of the filter is from -35 to -20 dBm.http://www.gtxyj.com.cn/thesisDetails#10.13756/j.gtxyj.2023.01.007spectral analysis;MPF;SBS;tunable filter
spellingShingle GUO Li-jun
TAN Zhong-wei
Spectral Analysis based on Stimulated Brillouin Scattering Effect
Guangtongxin yanjiu
spectral analysis;MPF;SBS;tunable filter
title Spectral Analysis based on Stimulated Brillouin Scattering Effect
title_full Spectral Analysis based on Stimulated Brillouin Scattering Effect
title_fullStr Spectral Analysis based on Stimulated Brillouin Scattering Effect
title_full_unstemmed Spectral Analysis based on Stimulated Brillouin Scattering Effect
title_short Spectral Analysis based on Stimulated Brillouin Scattering Effect
title_sort spectral analysis based on stimulated brillouin scattering effect
topic spectral analysis;MPF;SBS;tunable filter
url http://www.gtxyj.com.cn/thesisDetails#10.13756/j.gtxyj.2023.01.007
work_keys_str_mv AT guolijun spectralanalysisbasedonstimulatedbrillouinscatteringeffect
AT tanzhongwei spectralanalysisbasedonstimulatedbrillouinscatteringeffect