Kodi ma electro-optic modulator optical frequencycomb ndi chiyani?Gawo Lachiwiri

02electro-optic modulatorndielectro-optic modulationkuwala pafupipafupi chisa

Electro-optical effect imatanthawuza momwe index ya refractive ya zinthu imasintha pamene gawo lamagetsi likugwiritsidwa ntchito. Pali mitundu iwiri ikuluikulu ya electro-optical effect, imodzi ndi electro-optical effect, yomwe imadziwikanso kuti Pokels effect, yomwe imatanthawuza kusintha kwa mzere wa zinthu zowonongeka ndi gawo lamagetsi. Chinacho ndi chachiwiri cha electro-optical effect, chomwe chimadziwikanso kuti Kerr effect, momwe kusintha kwa refractive index of the material ndikofanana ndi lalikulu la magetsi. Ma electro-optical modulators ambiri amachokera ku zotsatira za Pokels. Pogwiritsira ntchito electro-optic modulator, tikhoza kusintha gawo la kuwala kwa zochitika, ndipo pamaziko a kusintha kwa gawo, kupyolera mu kutembenuka kwina, tikhoza kusinthanso mphamvu kapena polarization ya kuwala.

Pali mitundu ingapo yosiyanasiyana yachikale, monga momwe tawonetsera pa Chithunzi 2. (a), (b) ndi (c) zonse ndizopangidwa modulira limodzi zokhala ndi mawonekedwe osavuta, koma m'lifupi mwake m'lifupi mwake chisa chopangidwa ndi ma frequency optical chimachepa ndi electro-optical. bandwidth. Ngati chisa chowoneka pafupipafupi chobwerezabwereza kwambiri chikufunika, ma modulator awiri kapena kupitilira apo amafunikira mumsewu, monga momwe zikusonyezera Chithunzi 2(d)(e). Mtundu wotsiriza wamapangidwe omwe amapanga chisa cha ma frequency optical amatchedwa electro-optical resonator, yomwe ndi electro-optical modulator yomwe imayikidwa mu resonator, kapena resonator yokha imatha kupanga electro-optical effect, monga momwe tawonetsera pa Chithunzi 3.

CHITH. 2 Zida zingapo zoyesera zopangira ma combs owoneka pafupipafupi kutengeraelectro-optic modulators

CHITH. 3 Mapangidwe a ma electro-optical cavities angapo
03 Mawonekedwe a Electro-Optic Modulation Optical frequency Chisa Makhalidwe

Ubwino woyamba: tunability

Popeza gwero la kuwala ndi laser yowoneka bwino, komanso ma electro-optical modulator alinso ndi ma frequency bandwidth, ma electro-optical modulation optical frequency comb nawonso amatha kusinthidwa pafupipafupi. Kuphatikiza pa ma frequency osinthika, popeza kutulutsa kwa ma waveform kwa modulator ndikosavuta, kubwereza pafupipafupi kwa ma frequency optical comb kumathekanso. Uwu ndi mwayi womwe zisa za ma frequency optical opangidwa ndi ma laser-locked lasers ndi ma micro-resonators alibe.

Ubwino wachiwiri: kubwereza pafupipafupi

Mlingo wobwerezabwereza sumangosinthika, komanso ukhoza kutheka popanda kusintha zida zoyesera. Kutalika kwa mzere wa electro-optic modulation optical frequency comb ndi pafupifupi ofanana ndi bandwidth modulation, general commercial electro-optic modulator bandwidth ndi 40GHz, ndipo electro-optic modulation optical frequency chisa kubwereza pafupipafupi kumatha kupitilira kuchuluka kwa ma frequency comb bandwidth. ndi njira zina zonse kupatula microresonator (yomwe imatha kufika 100GHz).

Ubwino 3: mawonekedwe owoneka bwino

Poyerekeza ndi chisa cha kuwala chopangidwa ndi njira zina, mawonekedwe a chimbale cha electro-optic modulated Optical comb amatsimikiziridwa ndi magawo angapo a ufulu, monga ma radio frequency signal, voltage bias, polarization, etc., amagwiritsidwa ntchito kuwongolera kukula kwa zisa zosiyanasiyana kuti akwaniritse cholinga cha mawonekedwe owoneka bwino.

04 Kugwiritsa ntchito ma electro-optic modulator optical frequency comb

Pogwiritsa ntchito ma electro-optic modulator optical frequency chisa, imatha kugawidwa m'mawonekedwe amodzi komanso awiri. Kutalikirana kwa mzere wa sipekitiramu imodzi ndi yopapatiza kwambiri, kotero kuti mutha kukhala olondola kwambiri. Nthawi yomweyo, poyerekeza ndi chisa cha pafupipafupi chopangidwa ndi laser mode-locked, chipangizo cha electro-optic modulator optical frequency comb ndi chocheperako komanso chosavuta kugwiritsa ntchito. Chisa chawiri chimapangidwa ndi kusokonekera kwa zisa ziwiri zolumikizana zomwe zimasiyana pang'ono kubwereza pafupipafupi, ndipo kusiyana kwa kubwereza pafupipafupi ndikotalikirana kwa mizere yakusokoneza kwatsopano. Ukadaulo wa ma frequency a Optical comb ukhoza kugwiritsidwa ntchito pakuyerekeza kwamaso, kuyambira, kuyeza makulidwe, kusanja kwa zida, mawonekedwe amtundu wamagetsi, ma radio frequency photonics, kulumikizana kwakutali, kuwala kowoneka ndi zina zotero.

CHITH. 4 Momwe mungagwiritsire ntchito chisa cha pafupipafupi: Kutengera muyeso wa mbiri yachipolopolo chothamanga kwambiri monga chitsanzo.