02electro-optic modulatoruyeelectro-optic modulationOptical frequency muzinga
Electro-optical effect inoreva mhedzisiro yekuti refractive index yechinhu chinoshanduka kana munda wemagetsi ukaiswa. Kune marudzi maviri makuru e electro-optical effect, imwe ndiyo yekutanga electro-optical effect, inozivikanwawo sePokels effect, iyo inoreva kushanduka kwemutsara wezvinyorwa refractive index pamwe nendima yemagetsi inoshandiswa. Imwe ndiyo yechipiri electro-optical effect, inozivikanwawo seKerr effect, umo shanduko yerefractive index yezvinhu inoenderana nesquare yemunda wemagetsi. Mazhinji electro-optical modulators anobva pane iyo Pokels maitiro. Tichishandisa electro-optic modulator, tinogona kuenzanisa chikamu chechiedza chechiitiko, uye pamusana pechikamu chekugadzirisa, kuburikidza nekumwe kutendeuka, tinogonawo kugadzirisa kusimba kana polarization yechiedza.
Kune akati wandei akasiyana echinyakare zvimiro, sezvakaratidzwa mumufananidzo 2. (a), (b) uye (c) ese ari ega modulator zvimiro zvine chimiro chakareruka, asi mutsara wehupamhi hweyakagadzirwa optical frequency comb inoganhurwa ne electro-optical. bandwidth. Kana iyo optical frequency comb ine yakanyanya kudzokororwa frequency ichidikanwa, maviri kana anopfuura modulator anodiwa mucascade, sezvakaratidzwa muFigure 2(d) (e). Rudzi rwekupedzisira rwechimiro chinoburitsa muzinga wemagetsi unonzi electro-optical resonator, inova electro-optical modulator yakaiswa muresonator, kana resonator pachayo inogona kuburitsa electro-optical effect, sezvakaratidzwa mumufananidzo 3.
FIG. 2 Midziyo yakati wandei yekuyedza yekugadzira optical frequency mizinga yakavakirwa paelectro-optic modulators
FIG. 3 Zvimiro zveakawanda electro-optical cavities
03 Electro-optic modulation optical frequency comb maitiro
Advantage imwe: tunability
Sezvo mwenje sosi iri tunable yakakura-spectrum laser, uye iyo electro-optical modulator inewo imwe inoshanda frequency bandwidth, iyo electro-optical modulation optical frequency comb zvakare inobatika frequency. Pamusoro peiyo inogoneka frequency, sezvo waveform chizvarwa chemodulator ichigoneka, iyo yekudzokorora frequency yeiyo inokonzeresa optical frequency comb inogoneka zvakare. Uyu mukana wekuti optical frequency combs inogadzirwa nemodhi-yakiyiwa lasers uye micro-resonators haina.
Advantage mbiri: kudzokorora frequency
Chiyero chekudzokorora hachina kushanduka chete, asiwo chinogona kuwanikwa pasina kushandura michina yekuedza. Mutsetse wakafara we electro-optic modulation optical frequency comb inenge yakaenzana nemodulation bandwidth, general commercial electro-optic modulator bandwidth ndeye 40GHz, uye electro-optic modulation optical frequency comb repetition frequency inogona kudarika optical frequency comb bandwidth inogadzirwa. nedzimwe nzira dzese kunze kweiyo micro resonator (iyo inogona kusvika 100GHz).
Advantage 3: spectral kuumbwa
Kana ichienzaniswa neyekuvheneka muzinga inogadzirwa nedzimwe nzira, iyo optical disc chimiro che electro-optic modulated optical comb inotarwa nehuwandu hwemadhigirii erusununguko, senge redhiyo frequency chiratidzo, bias voltage, chiitiko polarization, nezvimwewo, izvo zvinogona inoshandiswa kudzora kusimba kwemizinga yakasiyana-siyana kuzadzisa chinangwa chechimiro chechimiro.
04 Kushandiswa kwe electro-optic modulator optical frequency comb
Mukuita kwekushandisa kwe electro-optic modulator optical frequency comb, inogona kupatsanurwa kuita imwechete uye yakapetwa kaviri comb spectra. Mutsetse wemutsara wemuzinga mumwechete wakatetepa zvakanyanya, saka huchokwadi hwepamusoro hunogona kuwanikwa. Panguva imwecheteyo, kana ichienzaniswa neiyo optical frequency comb inogadzirwa nemodhi-yakiyiwa laser, mudziyo we electro-optic modulator optical frequency comb idiki uye iri nani inobatika. Iyo kaviri comb spectrometer inogadzirwa nekukanganisika kwemizinga miviri yakabatana ine kudzokorora kwakasiyana zvishoma, uye mutsauko wedzokororo frequency ndiyo mitsara yemutsara weiyo nyowani yekukanganisa muzinga. Optical frequency comb tekinoroji inogona kushandiswa mukufungidzira kwemaziso, kubva, kuyerwa kwehukobvu, kuenzanisa kwechiridzwa, kupokana waveform spectrum kuumbwa, radio frequency photonics, kure kure kutaurirana, optical stealth zvichingodaro.
FIG. 4 Mamiriro ekushandisa eiyo optical frequency comb: Kutora kuyerwa kweyakakwira-kumhanya bullet mbiri semuenzaniso.
Nguva yekutumira: Zvita-19-2023