Yini i-electro-optic modulator optical frequency comb?Ingxenye Yesibili

02i-electro-optic modulefuthiukuguqulwa kwe-electro-optici-optical frequency comb

I-Electro-optical effect isho umphumela wokuthi inkomba ye-refractive yento ebonakalayo iyashintsha lapho kusetshenziswa inkambu kagesi. Kunezinhlobo ezimbili eziyinhloko zomphumela we-electro-optical, enye iwumphumela oyinhloko we-electro-optical, owaziwa nangokuthi umphumela we-Pokels, obhekisela ekushintsheni komugqa wenkomba ye-refractive yezinto nenkambu kagesi esetshenziswayo. Omunye umphumela wesibili we-electro-optical, owaziwa nangokuthi umphumela we-Kerr, lapho uguquko lwenkomba ye-refractive yezinto ilingana nesikwele senkundla kagesi. Amamojula amaningi we-electro-optical asuselwa kumphumela we-Pokels. Ngokusebenzisa i-electro-optic modulator, singakwazi ukulinganisa isigaba sokukhanya kwesigameko, futhi ngesisekelo sokuguqulwa kwesigaba, ngokuguqulwa okuthile, singakwazi futhi ukulinganisa amandla noma i-polarization yokukhanya.

Kunezinhlaka eziningana ezihlukene ze-classical, njengoba kukhonjisiwe kuMfanekiso 2. (a), (b) kanye no-(c) zonke ziyizakhiwo zemodulator eyodwa ezinesakhiwo esilula, kodwa ububanzi bomugqa wekamu elikhiqiziwe le-optical optical inqunyelwe i-electro-optical. umkhawulokudonsa. Uma ikamu lefrikhwensi yokubona enefrikhwensi yokuphindaphinda ephezulu idingeka, amamoduli amabili noma ngaphezulu ayadingeka ku-cascade, njengoba kukhonjisiwe kuMfanekiso 2(d)(e). Uhlobo lokugcina lwesakhiwo olukhiqiza ikamu lefrikhwensi yokubona lubizwa ngokuthi i-electro-optical resonator, okuyi-electro-optical modulator ebekwe ku-resonator, noma i-resonator ngokwayo ingakhiqiza umphumela we-electro-optical, njengoba kuboniswe kuMfanekiso 3.

I-FIG. 2 Amadivayisi amaningi okuhlola okukhiqiza ama-optical frequency Combs asekelweama-modulators e-electro-optic

I-FIG. 3 Izakhiwo zemigodi eminingi ye-electro-optical
03 Izici zokuhlanganisa i-electro-optic optical frequency comb

I-Advantage yokuqala: ukuqina

Njengoba umthombo wokukhanya kuyi-laser ene-wide-spectrum efundekayo, futhi imoduli ye-electro-optical nayo inomkhawulokudonsa othile wokusebenza, ikamu le-electro-optical modulation optical optical comb nalo lingaguquleka. Ngokungeziwe kufrikhwensi eguqulekayo, njengoba ukukhiqizwa kwe-waveform yemoduli kuyafundeka, imvamisa yokuphinda yekama ye-optical frequency compb nayo iyafundeka. Lokhu kuyinzuzo ukuthi ama-optical frequency Combs akhiqizwa ama-laser akhiywe ngemodi kanye nama-micro-resonator awanayo.

Inzuzo yesibili: imvamisa yokuphindaphinda

Izinga lokuphindaphinda aliguquki nje kuphela, kodwa futhi lingafinyelelwa ngaphandle kokushintsha imishini yokuhlola. Ububanzi bomugqa we-electro-optic modulation optical optical comb cishe bulingana nomkhawulokudonsa wokulinganisa, umkhawulokudonsa ojwayelekile wezohwebo we-electro-optic modulator ngu-40GHz, kanye ne-electro-optic modulation optical optical optical comb repetition frequency ingadlula umkhawulokudonsa okhiqizwayo. ngazo zonke ezinye izindlela ngaphandle kwe-micro resonator (engafinyelela ku-100GHz).

Inzuzo 3: ukubunjwa kwe-spectral

Uma kuqhathaniswa nekama optical elikhiqizwa ngezinye izindlela, ukuma kwe-optical disc ye-electro-optic modulated optical comb kunqunywa inani lamazinga enkululeko, njengesignali yefrikhwensi yomsakazo, i-bias voltage, i-section polarization, njll., okungaba esetshenziswa ukulawula ukushuba kwamakhekheba ahlukene ukuze kuzuzwe inhloso yokubunjwa kwe-spectral.

04 Ukusetshenziswa kwe-electro-optic modulator optical frequency comb

Ekusetshenzisweni okungokoqobo kwe-electro-optic modulator optical frequency comb, ingahlukaniswa ibe yi-spectra yekamu elilodwa nelikabili. Isikhala somugqa we-spectrum yekamu elilodwa sincane kakhulu, ngakho ukunemba okuphezulu kungafinyelelwa. Ngesikhathi esifanayo, uma kuqhathaniswa nekama lefrikhwensi yokubona ekhiqizwa i-laser ekhiywe ngemodi, idivayisi ye-electro-optic modulator optical optical comb incane futhi ifundeka kangcono. I-spectrometer yekamu eliphindwe kabili ikhiqizwa ukugxambukela kwamakamu amabili angawodwa ahambisanayo anamafrikhwensi okuphindaphinda ahluke kancane, futhi umehluko wefrikhwensi yokuphindaphinda isikhala somugqa we-spectrum entsha yokuphazanyiswa. Ubuchwepheshe be-Optical Commb Comb bungasetshenziswa ekucabangeni kokubona, ukusukela, ukukala ukujiya, ukulinganiswa kwezinsimbi, ukubunjwa kwe-spectrum ye-waveform okungahleliwe, izithombe zefrikhwensi yomsakazo, ukuxhumana okukude, i-optical stealth nokunye.

I-FIG. 4 Isimo sohlelo lokusebenza se-optical frequency comb: Ukuthatha isilinganiso sephrofayela yenhlamvu yesivinini esikhulu njengesibonelo