Yuav xaiv li cas ntawm 780nmtheem modulatorthiab qhov modulator zog?
Hauv qhov tseem ceeb ntawm 780nm wavelength, kev sib cuam tshuam ntawm lub teeb thiab cov khoom yog nplua nuj heev - txawm tias nws yog D2 kab hloov pauv ntawm cesium atoms lossis quantum xeev manipulation ntawm rubidium atoms, kev tswj hwm meej ntawm laser hauv qhov wavelength ntau yam no yog qhov tseem ceeb. Lub cuab yeej tseem ceeb uas ua tiav qhov kev tswj hwm no yog lub electro-optic modulator (EOM modulator). Ntawm lawv, txawm hais tias ob qho tib sielectro-optic theem modulatorthiab lub electro-opticlub zog modulatorkoom nrog tsev neeg lithium niobate electro-optic modulation, lawv muaj lawv tus kheej cov txuj ci tshwj xeeb thiab ua lawv txoj haujlwm.
Lub tshuab hluav taws xob optic theem modulator, raws li lub npe qhia, tsom mus rau kev tswj hwm qhov tseeb ntawm theem ntawm cov teeb liab optical. Nws cov qauv yog qhov yooj yim - ib qho waveguide yog khub nrog ob lub electrodes ntawm ob sab, thiab qhov refractive index ntawm cov siv lead ua hloov pauv los ntawm cov nyhuv electro-optic, yog li hloov theem ntawm lub teeb nthwv dej. Lub ROF-PM series 780nm theem modulator txais yuav cov thev naus laus zis pauv proton siab heev thiab muaj cov yam ntxwv zoo heev xws li kev poob qis (tus nqi ib txwm 2.8dB), bandwidth siab modulation (10GHz), thiab qis ib nrab nthwv dej voltage (tus nqi ib txwm 2.0V). Nws feem ntau ua haujlwm rau thaj chaw ntawm qhov chaw sib txuas lus optical, cesium atomic time reference, spectral broadening, thiab interferometry - hauv optical moos thiab kev ntsuas qhov tseeb, theem modulators yog "tom qab scenes heroes" ntawm zaus xauv thiab stabilization.
Lubelectro-optic zog modulatoryog lub luag haujlwm rau kev tswj hwm qhov muaj zog (amplitude) ntawm lub teeb. Nws yog raws li Mach Zehnder interferometer (MZI) qauv: lub teeb liab optical yog muab faib ua ob txoj kev, uas dhau los ntawm theem modulation thiab tom qab ntawd recombine, ua tiav qhov muaj zog modulation los ntawm kev cuam tshuam. Lub ROF-AM-07 series intensity modulator kuj siv proton pauv technology, nrog rau kev poob ntawm tsawg dua 3dB, qhov hloov pauv extinction piv ntawm txog li 23dB, thiab ib nrab nthwv dej voltage ntawm tsuas yog 3V ntawm RF kawg. Nws cov ntawv thov ib txwm npog qhov chaw sib txuas lus optical, quantum optics, pulse generators, thiab lwm yam teb - hauv quantum cov ntaub ntawv sim, qhov muaj zog modulators feem ntau siv los "txiav" cov lasers txuas ntxiv mus rau hauv nanosecond theem optical pulses.
Nws tuaj yeem hais tias tus modulator theem yog tus kws kos duab uas ua kom zoo nkauj theem ntawm lub teeb nthwv dej, thaum tus modulator qhov muaj zog yog tus thawj coj uas tswj qhov muaj zog ntawm lub teeb tau yooj yim. Ob qho tib si ua ke, ob qho tib si txhawb nqa cov fibers tail rau FC / PC thiab FC / APC, nrog kev ua haujlwm ruaj khov ntawm qhov kub thiab txias ntawm -10 ℃ ~ 60 ℃, npog ntau txoj kev sim optical los ntawm cov moos atomic yooj yim mus rau kev txiav-ntug quantum optics, muab kev daws teeb meem optical modulation rau 780nm band tshawb fawb.
Lub sijhawm tshaj tawm: Lub Rau Hli-29-2026