02i-electro-optic modulatorfuthiukuguqulwa kwe-electro-opticikamu lemvamisa yokukhanya
Umphumela we-electro-optical ubhekisela kumphumela lapho inkomba yokukhanya kwezinto ishintsha khona lapho kusetshenziswa insimu kagesi. Kunezinhlobo ezimbili eziyinhloko zomphumela we-electro-optical, enye ingumphumela oyinhloko we-electro-optical, owaziwa nangokuthi umphumela we-Pokels, obhekisela ekushintsheni okuqondile kwenkomba yokukhanya kwezinto ezibonakalayo nensimu kagesi esetshenzisiwe. Enye ingumphumela wesibili we-electro-optical, owaziwa nangokuthi umphumela we-Kerr, lapho ushintsho kunkomba yokukhanya kwezinto ezibonakalayo lulingana nesikwele sensimu kagesi. Ama-modulators amaningi e-electro-optical asekelwe kumphumela we-Pokels. Sisebenzisa i-modulator ye-electro-optic, singaguqula isigaba sokukhanya kwesigameko, futhi ngesisekelo sokuguqulwa kwesigaba, ngokuguqulwa okuthile, singaguqula futhi ukuqina noma ukuhlukaniswa kokukhanya.
Kunezinhlobo eziningana zezakhiwo zakudala, njengoba kuboniswe kuMfanekiso 2. (a), (b) kanye no-(c) zonke ziyizakhiwo ze-modulator eyodwa enesakhiwo esilula, kodwa ububanzi bomugqa we-optical frequency comb ekhiqizwe bunqunyelwe yi-bandwidth ye-electro-optical. Uma kudingeka i-optical frequency comb ene-frequency ephezulu yokuphindaphinda, kudingeka ama-modulators amabili noma ngaphezulu ku-cascade, njengoba kuboniswe kuMfanekiso 2(d)(e). Uhlobo lokugcina lwesakhiwo olukhiqiza i-optical frequency comb lubizwa ngokuthi i-electro-optical frequency comb, okuyi-electro-optical modulator ebekwe ku-resonator, noma i-resonator ngokwayo ingakhiqiza umphumela we-electro-optical, njengoba kuboniswe kuMfanekiso 3.
UMFANELO 2 Amadivayisi amaningana okuhlola okukhiqiza ama-optical frequency combs asekelwe kuama-modulators e-electro-optic
UMFANELO 3 Izakhiwo zemigodi eminingana ye-electro-optical
03 Izici zekamu lemvamisa yokukhanya ye-electro-optic modulation
Inzuzo yokuqala: ukulungiswa
Njengoba umthombo wokukhanya uyi-laser ebanzi elungisekayo, futhi i-modulator ye-electro-optical nayo inomkhawulokudonsa othile wemvamisa yokusebenza, i-electro-optical modulation optical frequency comb nayo ingalungiseka imvamisa. Ngaphezu kwemvamisa elungisekayo, njengoba ukukhiqizwa kwe-waveform ye-modulator kungalungiseka, imvamisa ephindaphindayo ye-optical frequency comb ephumelayo nayo ingalungiseka. Lokhu kuyinzuzo ama-optical frequency comb akhiqizwa ama-mode-locked lasers nama-micro-resonators angenayo.
Inzuzo yesibili: imvamisa yokuphindaphinda
Izinga lokuphindaphinda aligcini nje ngokuguquguquka, kodwa futhi lingafinyelelwa ngaphandle kokushintsha imishini yokuhlola. Ububanzi bomugqa we-electro-optic modulation optical frequency comb bucishe bulingane ne-modulation bandwidth, i-commercial electro-optic modulator bandwidth ejwayelekile ingu-40GHz, kanti i-electro-optic modulation optical frequency comb repetition frequency ingadlula i-optical frequency comb bandwidth ekhiqizwe yizo zonke ezinye izindlela ngaphandle kwe-micro resonator (engafinyelela ku-100GHz).
Inzuzo 3: ukwakheka kwe-spectral
Uma kuqhathaniswa nekamu lokubona elikhiqizwa ngezinye izindlela, ukuma kwediski lokubona lekamu lokubona elilungisiwe le-electro-optic kunqunywa amazinga amaningi enkululeko, njengesignali yemvamisa yomsakazo, i-bias voltage, i-incident polarization, njll., okungasetshenziswa ukulawula ukuqina kwamakamu ahlukene ukuze kufezwe injongo yokubumba ama-spectral.
04 Ukusetshenziswa kwekamu lemvamisa yokukhanya ye-electro-optic modulator
Ekusetshenzisweni okusebenzayo kwe-electro-optic modulator optical frequency comb, ingahlukaniswa ibe yi-single kanye ne-double comb spectra. Isikhala somugqa we-single comb spectrum sincane kakhulu, ngakho-ke ukunemba okuphezulu kungafinyelelwa. Ngesikhathi esifanayo, uma kuqhathaniswa ne-optical frequency comb ekhiqizwa yi-mode-locked laser, idivayisi ye-electro-optic modulator optical frequency comb incane futhi ingashintshwa kangcono. I-double comb spectrometer ikhiqizwa ukuphazamiseka kwama-single coherent combs amabili anama-frequency okuphindaphinda ahlukene kancane, futhi umehluko kuma-frequency okuphindaphinda yi-line space ye-interference comb spectrum entsha. Ubuchwepheshe be-optical frequency comb bungasetshenziswa ekufomeni kwe-optical, ukulinganisa ubukhulu, ukulinganiswa kwezinsimbi, ukwakheka kwe-waveform spectrum ngokungahleliwe, i-radio frequency photonics, ukuxhumana okukude, i-optical stealth njalo njalo.
ISITHOMBE 4 Isimo sokusetshenziswa kwekamu lemvamisa yokukhanya: Ukuthatha isilinganiso sephrofayili yezinhlamvu zesivinini esikhulu njengesibonelo
Isikhathi sokuthunyelwe: Disemba 19-2023