02modulator yemagetsi-opticuyemodulation yemagetsi-opticmuzinga wefrequency wemaziso
Electro-optical effect inoreva mhedzisiro iyo refractive index yezvinhu inoshanduka kana simba remagetsi rashandiswa. Kune mhando mbiri huru dze electro-optical effect, imwe ndiyo primary electro-optical effect, inozivikanwawo sePokels effect, iyo inoreva kuchinja kwe linear kwe material refractive index ne simba remagetsi rinoshandiswa. Imwe i secondary electro-optical effect, inozivikanwawo seKerr effect, umo shanduko mu refractive index yezvinhu zvinoenderana ne square ye electric field. Mazhinji electro-optical modulators akavakirwa paPokels effect. Tichishandisa electro-optic modulator, tinogona kugadzirisa phase ye incident light, uye zvichibva pa phase modulation, kuburikidza ne certain conversion, tinogonawo kugadzirisa intensity kana polarization yechiedza.
Kune maumbirwo akasiyana-siyana ekare, sezvakaratidzwa muMufananidzo 2. (a), (b) na (c) ese ari maumbirwo emodulator imwe chete ane chimiro chiri nyore, asi hupamhi hwemutsara wecomb ye optical frequency yakagadzirwa hunogumira ne bandwidth ye electro-optical. Kana komb ye optical frequency ine frequency yakakwira ichidikanwa, ma modulators maviri kana anopfuura anodiwa mu cascade, sezvakaratidzwa muMufananidzo 2(d)(e). Rudzi rwekupedzisira rwechimiro runogadzira komb ye optical frequency inonzi electro-optical resonator, inova electro-optical modulator yakaiswa mu resonator, kana resonator pachayo inogona kugadzira electro-optical effect, sezvakaratidzwa muMufananidzo 3.
Mufananidzo 2. Midziyo yakasiyana-siyana yekuedza yekugadzira macombs e optical frequency yakavakirwa pamamodulator emagetsi-optic
Mufananidzo 3. Maumbirwo emakona akawanda emagetsi-optical
03 Hunhu hwemuzinga we Electro-optic modulation optical frequency
Chinhu chekutanga chakanaka: kugadzirisa
Sezvo chiedza chiri laser inogadziriswa ne wide-spectrum, uye electro-optical modulator inewo bandwidth yekushanda kwefrequency, electro-optical modulation optical frequency comb inogonawo kugadziriswa nefrequency. Pamusoro pe frequency inogadziriswa, sezvo waveform generation yemodulator ichigadziriswa, frequency inodzokororwa ye optical frequency comb inogonawo kugadziriswa. Iyi ibhenefiti iyo optical frequency combs inogadzirwa ne mode-locked lasers uye micro-resonators dzisina.
Kubatsira kwechipiri: kudzokorora kakawanda
Mwero wekudzokorora haungochinji chete, asiwo unogona kuwanikwa pasina kuchinja michina yekuedza. Upamhi hwemutsara we electro-optic modulation optical frequency comb hwakaenzana ne modulation bandwidth, general commercial electro-optic modulator bandwidth i40GHz, uye electro-optic modulation optical frequency comb repetition frequency inogona kudarika optical frequency comb bandwidth inogadzirwa nedzimwe nzira dzese kunze kwe micro resonator (inogona kusvika 100GHz).
Kubatsira 3: kuumba ma spectral
Kana tichienzanisa ne optical comb inogadzirwa nedzimwe nzira, optical disc shape ye electro-optic modulated optical comb inotsanangurwa nehuwandu hwemadhigirii erusununguko, akadai se radio frequency signal, bias voltage, incident polarization, nezvimwewo, izvo zvinogona kushandiswa kudzora simba rema comb akasiyana kuti zvizadzise chinangwa chekuumba spectral.
04 Kushandiswa kwe electro-optic modulator optical frequency comb
Mukushandiswa kwe electro-optic modulator optical frequency comb, inogona kukamurwa kuita single ne double comb spectra. Line spacing ye single comb spectrum yakamanikana kwazvo, saka high accuracy inogona kuwanikwa. Panguva imwe chete, kana ichienzaniswa ne optical frequency comb inogadzirwa ne mode-locked laser, mudziyo we electro-optic modulator optical frequency comb mudiki uye unogona kugadziriswa zviri nani. Double comb spectrometer inogadzirwa nekupindira kwema constant single coherent combs maviri ane repetition frequency dzakasiyana zvishoma, uye musiyano we repetition frequency i line spacing ye new interference comb spectrum. Optical frequency comb technology inogona kushandiswa mu optical imaging, ranging, thickness measurement, instrument calibration, arbitrally waveform spectrum shaping, radio frequency photonics, remote communication, optical stealth nezvimwewo.
Mufananidzo 4. Mamiriro ekushandiswa kwemuchina we optical frequency comb: Kutora kuyerwa kwe high-speed bullet profile semuenzaniso
Nguva yekutumira: Zvita-19-2023