02modulator yamagetsindikusintha kwa magetsi ndi kuwalachisa cha pafupipafupi cha kuwala
Mphamvu ya Electro-optical imatanthauza momwe chizindikiro cha refractive cha chinthu chimasintha pamene mphamvu yamagetsi ikugwiritsidwa ntchito. Pali mitundu iwiri ikuluikulu ya mphamvu ya electro-optical, imodzi ndi mphamvu ya electro-optical yoyamba, yomwe imadziwikanso kuti Pokels effect, yomwe imatanthauza kusintha kwa mzere wa chizindikiro cha refractive cha zinthu ndi mphamvu yamagetsi yogwiritsidwa ntchito. Ina ndi mphamvu yachiwiri ya electro-optical, yomwe imadziwikanso kuti Kerr effect, momwe kusintha kwa chizindikiro cha refractive cha zinthuzo kumayenderana ndi sikweya ya mphamvu yamagetsi. Ma modulators ambiri a electro-optical amachokera ku mphamvu ya Pokels. Pogwiritsa ntchito modulator ya electro-optic, tikhoza kusintha gawo la kuwala kwa chochitika, ndipo potengera kusintha kwa gawo, kudzera mu kusintha kwina, tikhozanso kusintha mphamvu kapena polarization ya kuwala.
Pali mitundu yosiyanasiyana ya kapangidwe kakale, monga momwe zasonyezedwera pa Chithunzi 2. (a), (b) ndi (c) zonse ndi kapangidwe ka modulator imodzi yokhala ndi kapangidwe kosavuta, koma m'lifupi mwa mzere wa chisa cha optical frequency chomwe chapangidwa chimachepetsedwa ndi bandwidth ya electro-optical. Ngati chisa cha optical frequency chokhala ndi ma frequency ambiri obwerezabwereza chikufunika, ma modulator awiri kapena kuposerapo amafunika mu cascade, monga momwe zasonyezedwera pa Chithunzi 2(d)(e). Mtundu womaliza wa kapangidwe kamene kamapanga chisa cha optical frequency chimatchedwa electro-optical resonator, yomwe ndi electro-optical modulator yomwe imayikidwa mu resonator, kapena resonator yokha imatha kupanga electro-optical effect, monga momwe zasonyezedwera pa Chithunzi 3.
CHITHUNZI 2 Zipangizo zingapo zoyesera zopangira ma frequency combs optical kutengerama modulators a electro-optic
CHITHUNZI 3 Kapangidwe ka ma cavities angapo a electro-optical
03 Makhalidwe a Electro-optic modulation optical frequency comb
Ubwino woyamba: kusinthasintha
Popeza gwero la kuwala ndi laser yosinthika, ndipo electro-optical modulator ilinso ndi bandwidth inayake yogwirira ntchito, electro-optical modulation optical frequency comb nayonso imatha kusinthidwa pafupipafupi. Kuphatikiza pa ma frequency osinthika, popeza kupanga ma waveform kwa modulator kumatha kusinthidwa, ma frequency obwerezabwereza a optical frequency comb omwe amachokera amatha kusinthidwanso. Uwu ndi mwayi womwe ma optical frequency comb opangidwa ndi ma mode-locked lasers ndi ma micro-resonators alibe.
Ubwino wachiwiri: kubwerezabwereza pafupipafupi
Kuchuluka kwa kubwerezabwereza sikungokhala kosinthasintha kokha, komanso kungathe kuchitika popanda kusintha zida zoyesera. M'lifupi mwa mzere wa electro-optic modulation optical frequency comb ndi wofanana ndi modulation bandwidth, general commercial electro-optic modulator bandwidth ndi 40GHz, ndipo electro-optic modulation optical frequency comb repetition frequency comb ikhoza kupitirira bandwidth ya optical frequency comb comb yopangidwa ndi njira zina zonse kupatula micro resonator (yomwe ingafike 100GHz).
Ubwino 3: kupanga mawonekedwe a spectral
Poyerekeza ndi chisa cha kuwala chomwe chimapangidwa ndi njira zina, mawonekedwe a diski ya kuwala ya chisa cha kuwala chosinthidwa cha electro-optic amatsimikiziridwa ndi madigiri angapo a ufulu, monga chizindikiro cha ma frequency a wailesi, mphamvu ya bias, polarization ya zochitika, ndi zina zotero, zomwe zingagwiritsidwe ntchito kuwongolera mphamvu ya zisa zosiyanasiyana kuti zikwaniritse cholinga cha spectral shaping.
04 Kugwiritsa ntchito chisa cha electro-optic modulator cha ma frequency optical
Pogwiritsa ntchito njira yogwiritsira ntchito electro-optic modulator optical frequency comb, imatha kugawidwa m'magulu awiri a single-optic comb spectra ndi awiri. Mipata ya mzere wa single comb spectrum ndi yopapatiza kwambiri, kotero kulondola kwakukulu kumatha kuchitika. Nthawi yomweyo, poyerekeza ndi optical frequency comb yopangidwa ndi mode-locked laser, chipangizo cha electro-optic modulator optical frequency comb ndi chaching'ono komanso chosinthika bwino. Double comb spectrometer imapangidwa ndi kusokoneza kwa coherent single coherent combs ziwiri zokhala ndi ma frequency osiyana pang'ono obwerezabwereza, ndipo kusiyana kwa ma frequency obwerezabwereza ndi mzere wa line space ya new interference comb spectrum. Ukadaulo wa optical frequency comb comb ungagwiritsidwe ntchito mu optical imaging, ranking, maximum measurement, instrument calibration, arbitrally waveform spectrum shaping, radio frequency photonics, remote communication, optical stealth ndi zina zotero.
Chithunzi 4. Chitsanzo cha momwe mungagwiritsire ntchito chisa cha ma frequency optical: Kutengera muyeso wa mbiri ya zipolopolo zothamanga kwambiri monga chitsanzo
Nthawi yotumizira: Disembala-19-2023