Dab tsi yog atheem modulator
Phase modulator yog qhov kho qhov muag modulator uas tuaj yeem tswj cov theem ntawm lub teeb ci laser. Cov hom ntawm theem modulators yog Pockels box-basedelectro-optic modulatorsthiab cov kua siv lead ua kua modulators, uas tuaj yeem ua kom zoo dua ntawm thermal fiber refractive index hloov lossis hloov ntev, lossis los ntawm kev ncab los hloov qhov ntev. Ntau theem modulators yog siv nyob rau hauv lub teb ntawm integrated optics, qhov twg modulated lub teeb propagates nyob rau hauv ib tug waveguide.
Cov khoom tseem ceeb ntawm theem modulators muaj xws li: Qhov luaj li cas ntawm cov theem kev hloov pauv (uas txiav txim siab qhov ntsuas qhov ntsuas qhov ntsuas thiab lub zog txheeb ze ntawm lub sideband) yuav tsum tau tsav voltage modulation bandwidth (modulation zaus ntau), lubelectro-optical modulatoryog nyob rau hauv qhov kev txiav txim GHz, thiab cov cuab yeej siv cov nyhuv thermal lossis cov khoom siv ua kua siv lead ua yog tsawg dua qhov kev ua haujlwm bandwidth ntawm lub cuab yeej aperture. Txwv cov kab hluav taws xob ntawm cov kab hluav taws xob modulated Sab Nraud qhov ntev ntawm cov cuab yeej Cov khoom no sib txawv heev rau ntau hom theem modulators. Yog li ntawd, txawv theem modulators yuav tsum tau siv nyob rau hauv sib txawv siv tswv yim.
Piv txwv ntawm cov kev siv theem modulator muaj xws li: Ib theem modulator nyob rau hauv lub laser resonator ntawm ib zaus laser yuav siv tau rau wavelength tuning, los yog active hom-locking (FM hom-locking) ntawm lub laser rau theem lub beam yog hais tias nws muaj ib tug nruab nrab modulation siv, yuav siv tau nyob rau hauv ib tug laser zaus stabilization mechanism, piv txwv li, ntau yam. interferometer spectral ntsuas cov cuab yeej, feem ntau yog siv cov cim tsav lub sijhawm. Qee qhov kev ntsuas yuav tsum muaj zaus combs, uas tau txais los ntawm qhov xwm txheej ib zaug ib-zaug beam mus rau theem modulator. Nyob rau hauv cov ntaub ntawv no, cov theem modulation feem ntau yuav tsum muaj zog, yog li ntawd koj yuav tau txais ib tug ntau ntawm sab bands. Nyob rau hauv cov ntaub ntawv transmitter ntawm optical fiber kev sib txuas lus system, theem modulator tuaj yeem siv los txiav txim siab cov ntaub ntawv xa mus. Piv txwv li, txoj kev hloov pauv hloov pauv yog siv.
Post lub sij hawm: Apr-08-2025