两种基于高双折射光纤环的高阶超精细梳状滤波器
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摘要
设计了两种基于高双折射(HiBi)光纤萨尼亚克环的可调谐高阶超精细梳状滤波器,其由偏振控制器(PC)、环形器、2段(或3段)Hi Bi保偏光纤(PMF)组成,具有单输入双输出和高阶超精细梳状光谱的特性,调谐灵活、输出光谱精细等特点.建立了理论模型研究光谱的双输出特性;对二阶滤波器,仿真研究了在Hi Bi光纤长度相等时偏振角度对输出梳状光谱的影响;对三阶滤波器,仿真研究了的Hi Bi光纤长度对输出梳状光谱的影响.结果表明该种高阶滤波器可应用于不同波长光波的选频输出.
Considering optical filter based on Hi Bi fiber generally has one input and one output with the fixed interval of the wavelength,this paper designs two new tunable high-order superfine comb filters based on Hi Bi fiber Sagnac ring.They have the particular features of one input and two outputs with superfine comb spectra.They also can be tuned flexibly.Structurally,they consists of polarization controllers(PC) \ \ polarization maintaining fibers(PMF) and 2 or 3 pieces of Hi Bi fiber.Using the JONES matrix theory,theoretical models have been established and two output transmission characteristics have been detailed studied.For the proposed two-order filter,the influences of polarization angles are studied when the lengths of Hi Bi fiber are the same.For the proposed three-order filter,the influences of the lengths of Hi Bi fiber are studied.Simulation results show that our designs may be used for wavelength selection output.
Considering optical filter based on Hi Bi fiber generally has one input and one output with the fixed interval of the wavelength,this paper designs two new tunable high-order superfine comb filters based on Hi Bi fiber Sagnac ring.They have the particular features of one input and two outputs with superfine comb spectra.They also can be tuned flexibly.Structurally,they consists of polarization controllers(PC) \ \ polarization maintaining fibers(PMF) and 2 or 3 pieces of Hi Bi fiber.Using the JONES matrix theory,theoretical models have been established and two output transmission characteristics have been detailed studied.For the proposed two-order filter,the influences of polarization angles are studied when the lengths of Hi Bi fiber are the same.For the proposed three-order filter,the influences of the lengths of Hi Bi fiber are studied.Simulation results show that our designs may be used for wavelength selection output.
引文
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[2]Lee Y W,Kim H T,Jung J,et al.Wavelength-switchable flat-top fiber comb filter based on a Solc type birefringence combination[J].Optics Express,2005,13(3):1039-1048.
[3]Derevyanko S.Design of a flat-top fiber Bragg filter via quasi-random modulation of the refractive index[J].Optics Letters,2008,33(20):2404-2406
[4]Lai Y,Zhang W,Williams J.All-fiber multichannel flattop filter based on coherent fiber delay line structure[J].Electronics Letters,2002,38(10):473-475.
[5]Hao W L.Research on fiber optic filter based on mode interference[D].He Fei:Anhui University,2011
[6]Passos D J,Marques M J,Frazao O.High·birefringence fiber loop mirror sensor using a WDM fused fiber coupler[J].Optics Letters,2013,38(15):2927-2929.
[7]Ying Y H.The design of a novel tunable micro ring resonator[J].Infrared and Laser Engineering,2016(6):221-226
[8]乔国荣.基于高双折射光纤的梳状滤波器及其在光纤激光器中的应用[D].合肥:安徽大学,2012.Qiao G R.Comb filter based on high birefringence fiber and its application in fiber laser[D].He Fei:Anhui University,2012
[9]Cheng J,Yao Ch B,Sun W J,et al.Study on the characteristics of high birefringence photonic crystal fiber[J].Science and technology information,2015,13(7):87-89.
[10]Lin L.Study on the filtering characteristics of high birefringence sagnac ring[D].Nan Chang:Jiangxi Normal University,2011.
[11]吉正继,武向农,殷业,等.基于高双折射光纤环镜的可调谐光滤波器[J].激光技术,2014,38(1):54-57.Ji Z J,Wu X N,Yin Y,et al.Tunable optical filter based on high birefringence fiber loop mirror[J].laser technology,2014,38(1):54-57.
[12]Cao Z G.New optical fiber filters and their applications in tunable fiber lasers[D].He Fei:Anhui University,2015
[13]Guo AN H,Zhang F,Yang J J,et al.Research status and application of optical fiber sagnac ring[J].Optoelectronic technology application,2013,28(6):18-22.
[14]汪徐德,李素文,周正,等.基于光子晶体光纤Sagnac环梳状滤波器的设计[J].激光杂志,2012,33(4):8-10.Wang T D,Li S W,Zhou Zh,et al.Design of comb filter based on photonic crystal fiber sagnac ring[J].Laser journal,2012,33(4):8-10.