Tsis ntev los no, Russell Advanced Lightwave Research Center ntawm Hangzhou Optical Precision Machinery Institute (HPMI), ua ke nrog Wuhan University of Technology (WUT) thiab Ningbo Aifab Optoelectronics Technology Co., Ltd. -core anti-resonance microstructured optical fiber ntau. Pab neeg no tsim thiab tsim ib qho hollow-core, anti-resonant microstructured fiber nrog ib tug tsis sib npaug-pitch capillary tis thiab ib tug ob-cladding qauv, thiab pom tau hais tias lub fiber ntau dua-txiav hom kev tsuj ze rau 1585 nm yog hais txog ib mus rau ob qhov kev txiav txim. ntawm qhov loj tshaj qhov uas tau tshaj tawm hollow-core fibers.
Lub hollow-core anti-resonant microstructured fiber yog ib hom tshiab ntawm microstructured fiber waveguide coj los ntawm qhov qis refractive index huab cua qhov, uas muaj qhov zoo ntawm spectral lub teeb qhia, tsis tshua muaj dispersion, tsis tshua muaj linearities, loj hom-field cheeb tsam, thiab siab laser. Kev puas tsuaj rau qhov pib, thiab tau txais kev nyiam ntawm cov kws tshawb fawb vim tias nws muab qhov zoo tshaj plaws kis tau tus mob platform rau kev tshawb fawb hauv kev sib kis ntawm laser, fiber optic kev sib txuas lus, fiber ntau optic sensing, thiab nonlinear optics. Ntawm qhov tod tes, cov yam ntxwv zoo ib hom yog qhov tseem ceeb rau cov hollow-core fibers hauv kev siv tswv yim xws li kev ua haujlwm siab fiber ntau, kev sib txuas lus fiber ntau, thiab kev ua haujlwm ntse ntawm laser zog xa mus. Txawm li cas los xij, vim muaj kev txwv ntawm nws txoj cai coj lub teeb, nws yog ib qho nyuaj rau kev ua kom muaj txiaj ntsig zoo ntawm cov kev txiav txim siab dua nyob rau hauv hollow-core fibers zoo ib yam li cov hauv cov tub ntxhais fibers. Kev ua kom zoo ntawm cov yam ntxwv ntawm ib hom kev kho qhov muag fiber ntau feem ntau ua tiav los ntawm kev tsim cov qauv fiber ntau kom ua tiav cov qauv kev txiav txim siab dua hauv cov tub ntxhais thiab cov qauv cladding kom ua tiav cov theem sib txuam, ua rau poob ntawm ntau dua kev txiav txim hom thiab lim tawm ib qho tseem ceeb hom. Txawm li cas los xij, hom kev daws teeb meem no tsis zoo lim tawm lwm hom kev txiav txim siab dua hauv cov tub ntxhais kawm, thiab cov kev txiav txim siab dua qub tseem yuav ua rau muaj teeb meem xws li cov khoom siv hluav taws xob hloov pauv vim muaj kev cuam tshuam los ntawm intermodal lossis crosstalk ntawm cov teeb liab kis, tshwj xeeb tshaj yog nyob rau hauv rooj plaub. ntawm daim ntawv thov siv luv luv optical fibers.
Txhawm rau daws cov teeb meem no, Russell pab pawg tau tshawb nrhiav lwm txoj hauv kev rau kev txiav txim siab dua hom lim dej, ua ntej, los ntawm kev qhia lub qhov loj dua qhov sib nrug ntawm cov cladding capillaries ntawm ib qho khoob-core, anti-resonant photonic siv lead ua fiber ntau nrog ib lub qhov sib nrug los txhim kho qhov. leakage ntawm cov kev txiav txim siab dua, thiab qhov thib ob, los ntawm kev qhia ib txheej huab cua tsim nyog sab nraum lub casing nyob rau sab nraud ntawm thawj cladding los tsim ib tug thib ob anti-resonant cladding txheej ntawm fiber, raws li qhia nyob rau hauv daim duab 1a hauv qab no. Vim qhov sib txawv ntawm qhov zoo transverse wavelengths ntawm cov qauv sib txawv, cov qauv no ua rau muaj txiaj ntsig zoo rau kev txiav txim siab ntau dua ntawm cov wavelengths tshwj xeeb thiab ua rau qhov poob ntawm hom tseem ceeb kuj qis. Pab neeg sim ua tiav hauv kev npaj ob tog -hom purity, raws li qhia hauv daim duab 1c. Ntxiv mus, raws li qhia nyob rau hauv daim duab 2, nws tau sim ua pov thawj tias cov tub ntxhais LP11 siab dua-txiav txim siab hom kev tsis lees paub ntawm qhov ob-clad hollow-core anti-resonant photonic siv lead ua fiber nyob ze 1585 nm yog siab li 60 dB / km, uas yog hais txog ib mus rau ob qhov kev txiav txim siab ntau dua li ntawm cov ntaub ntawv tshaj tawm nrog kev ua kom zoo ib hom purity. Tsis tas li ntawd, txoj kev tshawb no tshawb xyuas qhov hloov pauv hloov tau ntawm qhov siab ib hom purity kis tau tus mob ncua sij hawm ntawm no hollow-core anti-resonant fiber ntau nrog kev hloov pauv ntawm cov roj filling siab, uas ua rau muaj txiaj ntsig zoo nthuav dav wavelength interval muaj rau high-purity ib hom. . Lub validation ntawm ultrahigh ib hom purity nyob rau hauv hollow-core microstructured fibers nrog ob-cladding qauv muab ib lub tswv yim tshiab rau cov kev siv uas yuav tsum tau siab purity ntawm fiber ntau hom, xws li fiber ntau laser zog kis tau tus mob, fiber optic kev sib txuas lus, los yog fiber optic sensing.
Cov txiaj ntsig kev tshawb fawb cuam tshuam tau luam tawm nyob rau hauv phau ntawv journal "Ultrahigh Transverse Mode Purity by Enhanced Modal Filtering in Double-Clad Single-Ring Hollow-Core Photonic Crystal Fiber" Cov kev tshawb fawb tau luam tawm nyob rau hauv Laser & Photonics Reviews, ib tug saum toj kawg nkaus journal ntawm laser thiab photonics. . Dr. Zhuozhao Luo, tus tub ntxhais kawm PhD sib koom ntawm Wuhan University of Technology thiab Shanghai Institute of Optical Machinery (SIOM), yog thawj tus kws sau ntawv, thiab Associate Researcher Jiapeng Huang, Tus Kws Tshawb Fawb Xin Jiang thiab Tus Kws Tshawb Fawb Mian Pang ntawm Russell Center yog tus sib koom ua ke. Cov kws sau ntawv, nrog rau Dr. Ruochen Yin, PhD cov tub ntxhais kawm ntawm SIOM, thiab Dr. Yu Zheng ntawm Ningbo Aifibo Optoelectronics Technology Co. Cov haujlwm tshawb fawb no tau saib xyuas los ntawm Prof. Philip Russell, tus kws tshaj lij txawv teb chaws ntawm Suav Academy ntawm Sciences, thiab txhawb nqa. los ntawm Shanghai Science thiab Technology Innovation Action Plan (21ZR1482700), National Natural Science Foundation of China (62275254), Zhangjiang Laboratory Construction and Operation Program (20DZ2210300), National High-level Talent Youth Program, thiab Fuyang High-level Talent Program. High-level Talent Program, thiab lwm yam kev txhawb nqa.
Daim duab 1 (a) Theoretical design, (b) scanning electron microscopy, and (c) transmission spectrum test pattern of two-clad hollow-core anti-resonant photonic crystal fiber
Fig. 2 (a) LP01 thiab LP11 hom ze-tsav daim duab qhia chaw tau los ntawm hom kev xaiv excitation, (b) LP01 thiab LP11 hom kev poob, (c) siab dua-txiav hom kev txwv qhov piv FOM nkhaus, (d) nruab nrab wavelengths ntawm lub Qhov siab tshaj plaws FOM11 qhov tseem ceeb (sab laug axis) thiab siab FOM11 tus nqi ncua sij hawm (txoj cai axis) rau ob chav-cladding hollow-core anti-resonant photonic crystal fibers nrog nitrogen filling los ntawm 1-25 bar, (e) nruab nrab wavelengths ntawm FOM nkhaus ntsuas ntawm cov roj siab qhov tseem ceeb ntawm 1 bar, 10 bar thiab 20 bar
