Polarization electro-optictswj tau pom tau los ntawm femtosecond laser sau thiab kua siv lead ua hloov pauv
Cov kws tshawb fawb hauv tebchaws Yelemes tau tsim ib txoj hauv kev tshiab ntawm kev tswj cov teeb liab kho qhov muag los ntawm kev sib txuas femtosecond laser sau thiab kua siv lead ua kuaelectro-optic modulation. Los ntawm embedding kua siv lead ua txheej rau hauv lub waveguide, lub electro-optical tswj ntawm lub beam polarization xeev yog paub. Cov thev naus laus zis qhib qhov muaj peev xwm tshiab tag nrho rau cov khoom siv chip-raws li thiab txoj kev photonic circuits ua siv femtosecond laser sau tshuab. Pab neeg tshawb fawb tau piav qhia txog yuav ua li cas lawv ua cov paib yoj tunable hauv fused silicon waveguides. Thaum ib qho hluav taws xob siv rau cov kua siv lead ua kua, cov kua siv lead ua kua molecules tig, uas hloov pauv lub xeev polarization ntawm lub teeb kis hauv lub waveguide. Hauv kev sim ua, cov kws tshawb fawb tau ua tiav tag nrho cov polarization ntawm lub teeb ntawm ob qhov sib txawv pom qhov sib txawv (Daim duab 1).
Ua ke ob lub thev naus laus zis tseem ceeb kom ua tiav txoj kev vam meej hauv 3D photonic integrated li
Lub peev xwm ntawm femtosecond lasers kom meej meej sau waveguides sib sib zog nqus hauv cov khoom, es tsis yog nyob rau saum npoo, ua rau lawv muaj kev cog lus thev naus laus zis los ua kom muaj ntau tus waveguides ntawm ib nti. Cov thev naus laus zis ua haujlwm los ntawm kev tsom mus rau lub siab siv lub teeb laser hauv cov khoom pob tshab. Thaum lub teeb siv lub teeb ncav cuag ib theem, lub nqaj hloov cov khoom ntawm cov khoom ntawm nws qhov chaw ntawm daim ntawv thov, ib yam li tus cwj mem nrog micron raug.
Pab neeg tshawb fawb tau ua ke ob txoj hauv kev yooj yim photon los embed ib txheej ntawm cov kua siv lead ua kua hauv lub waveguide. Raws li lub beam taug kev los ntawm lub waveguide thiab los ntawm cov kua siv lead ua kua, cov theem thiab polarization ntawm lub beam hloov ib zaug ib tug hluav taws xob teb. Tom qab ntawd, cov kab hluav taws xob modulated yuav txuas ntxiv mus txuas ntxiv los ntawm qhov thib ob ntawm lub waveguide, yog li ua tiav qhov kev sib kis ntawm cov teeb liab optical nrog cov yam ntxwv ntawm kev hloov kho. Qhov no hybrid technology combining ob technologies enables qhov zoo ntawm ob qho tib si nyob rau hauv tib lub cuab yeej: nyob rau hauv ib tes, lub siab ceev ntawm lub teeb concentration coj los ntawm lub waveguide nyhuv, thiab ntawm qhov tod tes, lub siab adjustability ntawm cov kua siv lead ua kua. Qhov kev tshawb fawb no qhib txoj hauv kev tshiab los siv cov khoom ntawm cov kua siv lead ua kua rau embed waveguides nyob rau hauv tag nrho cov ntim ntawm cov cuab yeej xws limodulatorsraucov khoom siv photonic.
Daim duab 1 Cov kws tshawb fawb tau kos cov kua siv lead ua kua rau hauv cov waveguide tsim los ntawm kev sau ntawv laser ncaj qha, thiab cov khoom siv sib xyaw ua ke tuaj yeem siv los hloov cov polarization ntawm lub teeb dhau los ntawm waveguides.
Daim ntawv thov thiab qhov zoo ntawm cov kua siv lead ua kua hauv femtosecond laser waveguide modulation
Txawm tiasoptical modulationnyob rau hauv femtosecond laser sau waveguides yav dhau los ua tiav feem ntau los ntawm kev siv cov cua sov hauv zos rau cov waveguides, hauv txoj kev tshawb no, polarization tau ncaj qha tswj los ntawm kev siv cov kua muaju. "Peb txoj hauv kev muaj ntau qhov txiaj ntsig zoo: kev siv hluav taws xob qis dua, muaj peev xwm ua haujlwm ntawm tus kheej waveguides ntawm nws tus kheej, thiab txo kev cuam tshuam ntawm waveguides uas nyob ib sab," cov kws tshawb fawb sau tseg. Txhawm rau kuaj cov cuab yeej ua haujlwm tau zoo, pab pawg tau txhaj lub laser rau hauv lub waveguide thiab hloov lub teeb los ntawm qhov sib txawv ntawm qhov voltage thov rau cov kua siv lead ua kua txheej. Cov kev hloov pauv polarization pom ntawm cov zis yog ua raws li kev xav tau ntawm kev xav. Cov kws tshawb fawb tseem pom tau tias tom qab cov kua siv lead ua kua tau ua ke nrog cov waveguide, cov yam ntxwv ntawm cov kua siv lead ua kua tsis hloov pauv. Cov kws tshawb fawb tau hais tias txoj kev tshawb no tsuas yog ua pov thawj ntawm lub tswv yim xwb, yog li tseem muaj ntau txoj haujlwm yuav tsum tau ua ua ntej cov cuab yeej siv tau rau hauv kev xyaum. Piv txwv li, cov cuab yeej tam sim no hloov kho txhua lub waveguide tib txoj kev, yog li pab pawg ua haujlwm kom ua tiav kev tswj hwm ntawm txhua tus neeg waveguide.
Post lub sij hawm: May-14-2024