I. Lo Lus Txhais thiab cov ntsiab cai tseem ceeb ntawm Polarization - tswj xyuas cov ntsuas hluav taws xob kho qhov muag
Polarization {{0} Taug kev tswj cov roj kho kho qhov muag tshwj xeeb uas tau tswj hwm lub caij ruaj khov lub xeev thaum ua kom zoo nkauj birefringence. Nws cov ntsiab cai tseem ceeb yog los siv cov qauv kev nyuaj siab (xws li cov kev nyuaj siab rau cov kab ke Los ntawm suppressing sib txuas ntawm ob hom qauv no, cov kev taw qhia polarization tseem tsis hloov.
Birefringence thiab yeej ntev: The Bearffring cov coeffring (b) yog txhais tau tias kev ua haujlwm tau zoo thiab qeeb} |- ny |). Cov yeej ntev (lb =} λ / b) sawv cev rau qhov kis tau deb ntawm uas theem sib txawv ntawm ob hom mus txog 2π. Qhov ntau dua Birefringence, qhov zoo dua rau Polarization - Kev tswj hwm kev ua yeeb yam [CITITT: 7] [CEEB TOOM: 18]. ** Qhov sib txawv los ntawm cov fiber ntau **: Cov fiber ntau ua rau kev sib tw ntawm lub xeev Permesterence, thaum tsim muaj fiber ntau, los ntawm kev tsim qauv, muaj qhov sib luag birefringcing axis. Qhov no ua rau nws haum rau kev sib thooj -} rhiab thiab lasers, tab sis nws muaj kev txom nyem los ntawm cov polarization siab dua.
Ii. Hom thiab cov qauv ntawm polarization - tswj cov fiber ntau
1. Hom Hom
Panda:Birefringence yog tsim los ntawm cov cheeb tsam muaj kev ntxhov siab (feem ntau boron - doped) ntawm ob sab ntawm cov tub ntxhais. Qhov no yog tsim nyog rau loj {2} teev ntau lawm thiab yog hom kev sib tw hauv kuv lub tebchaws.
Thawb - Khi khi:Cov cheeb tsam kev ntxhov siab yog nyo - Khi- zoo li cov nyhuv muaj zog.
Ntug - lub qhov fiber:Cov cladding muaj cov pa hluav taws xob ua si, uas tswj hwm Begefringence los ntawm kev siab siab thiab muab siab siab.
Photonic Crystal Polarization - Tswj Fiber:Raws li cov duab birgefringence, nws tau muaj zog tsis kam kam rau ib puag ncig kev cuam tshuam thiab haum rau cov mob kub.
2. Lwm Pawg
● Raws li cov coeffringence birringence, nws tau muab faib ua high - birefringence (b≈10⁻⁴-10} {} birefringcing fibers. Cov qub yog ua tiav los ntawm ib qho kev ntxhov siab lossis kev ntxhov siab asymmetric.
III. Cov Ntsiab Lus Tseem Ceeb
1. Extinthtion piv (ib)
Qhov no yog qhov taw qhia tseem ceeb rau kev ntsuas polarization -}}}}}}}}}}} Txoj kev sib piv ntawm cov xeev Orthoogonal hauv nroog (hauv dB). Qhov siab dua ntawm ib qho, lub zog muaj zog polarization -}} Kev tswj tau muaj peev xwm, uas cuam tshuam los ntawm cov hauv qab no yam:
● Birgingence (qhov loj dua B, qhov siab dua ntawm).
● Cov txheej txheem Fiber ntau θ Kev ua yuam kev ntawm lub θ ntawm qhov nrawm thiab qeeb Axes yuav tsum muaj tsawg heev).
2. Ib puag ncig kev ruaj khov
Hloov pauv qhov kub thiab kev ntxhov siab tuaj yeem ua rau CrosStalk (Polarization Xeev Crosstalk). Siab - Zoo polarization- khiav tau kev ua tau ruaj khov nyob rau hauv qhov kub ntawm xyoo
Cov khoom siv neeg kho tshuab ua raws li 25-xyoo pabcuam lub neej.
Kev ua temper kub
IV. Cov ntawv thov MAIN
1. Fiber Optic Sensing
● Fiber ntau Optic Gyroscope:Ib qho tseem ceeb ntawm cov tub rog cov tshuab ua tub rog, nws tso siab rau qhov siab {{Precision polarision polarization tswj ntawm Polarization- tswj cov fiber ntau.
● Fiber Optic Hydrophone:Siv rau cov tub sab nrhiav kom tau, nws yuav tsum tau ntev {}} deb ntawm kev saib xyuas lub xeev.
2. Kev Sib Txuas Lus Kho Mob
● DWDM / Edfa Systems:Polarization - Tswj cov fiber ntau txo kev txo nyiaj polarization- Nyob tau poob thiab txhim kho teeb liab.
● Coherent optical kis:Piv txwv li, quantum kev sib txuas lus yuav tsum ua nruj polarization.
3. Lwm cov ntawv thov
● Kev sib cuam tshuam, plangingides, thiab cov khoom lag luam laser laser laser.
V. kev cov nyom thiab kev txhim kho tshiab
1. Npaj cov txheej txheem
● Cov duab kos ua ntej yuav tsum tau kho kom meej ntawm cov duab geometric symmetry (piv txwv li qhov chaw nyob ntawm qhov kev ntxhov siab hauv Panda fiber).
● PhotoMonic crystal yees siv tshuab yog technically nyuaj, tab sis muaj kev yoog tau zoo ib puag ncig.
2. Kev tawg hauv tsev
Kuv lub teb chaws tau tiav ntau ntau lawm ntawm Panda -}}}} {} {}}}}}}}}}}}}}}}}}}}}}}}}}}-
3. Cov lus qhia tseeb tshawb nrhiav
● Cov qauv txheej txheem txuas rau kev ntsuas rau ob peb - hom polarization {{ceev cia cov poj niam.
● Kev thov brillein tawg (SBS) rau NonTeciprocity nyob rau hauv kev sib tw Polarization {{} tswj covers.
VI. Kev sib txuas thiab kev siv cov kev pab tiv thaiv
● Polarization - Tswj cov txuas:Kho cov txheej txheem ntawm cov qoj nrawm thiab qeeb Axes (θ yuam kev<1°) is required to maintain a high extinction ratio.
● Sib tsoo thiab tapering:Ntaus kev ua lag luam polarization {{0} tswj cov kab ke yuav tsum muaj kev sib npaug ntawm kev ua tau zoo thiab lub zog kho tshuab.
Ntu no ntu no hloov pauv cov ntsiab cai, kev tsim qauv, kev siv, thiab kev txheeb xyuas kev kawm, cov qauv kev lag luam, thiab cov ntaub ntawv tsim khoom. Xav paub ntau ntxiv txog cov hom lossis cov ntaub ntawv thov, thov saib cov ncauj lus kom ntxaws ntawm cov webpages cuam tshuam.