Kubudirira kutsva muModulator yeLiNbO3
Munguva pfupi yapfuura, vaongorori vekuChina vakaburitsa patent yekutanga yekugadzira tekinoroji yePDH laser frequency locking. Sisitimu yekukiya frequency yePDH laser yakavakirwa pa nonlinear SOA (Semiconductor Optical Amplifier) yekugadzira ma sidebands. Patent iyi ine chinangwa chekugadzirisa matambudziko akawanda muPDH (Pound-Drever-Hall) laser frequency locking system yechinyakare nekuda kwekushandiswa kwe lithium niobate (LiNbO3 modulator) nedzimwe nzira.modulator yemagetsi-optic.
1. Matambudziko makuru echinyakare anosanganisira:
1.1 Magadzirirwo anodhura uye akaomarara: Mamodulator emagetsi echinyakare anoda maRF driving akaomarara uye bias circuits.
1.2 Kunzwa kwezvakatipoteredza: Kunonzwa tembiricha uye kushushikana, kunowanzoita kuti pave nekusagadzikana kwemamiriro ezvinhu.
1.3 Mhedzisiro yeResidual amplitude modulation (RAM): Izvi zvinokonzera DC bias yechiratidzo chekukanganisa, zvichikonzera kusvetuka kwelaser locking point uye zvichikanganisa zvakanyanya kugadzikana kwenguva refu kwesystem.
2. Mhinduro itsva yakataurwa nechikwata chevatsvagurudzi ndeiyi:
Siya zvachose modulator yechinyakare ye electro-optic uye shandisa dhizaini yekushandira pamwe chete yeamplifier ye optical ye semiconductor(SOA amplifier) yakasanganiswa ne dual-path acousto-optic frequency shifters. Musimboti chaiwo wekushanda ndewekuti: Mushure mekupatsanura seed laser, inochinjirwa frequency nema dual-path acousto-optic frequency shifters maviri, zvichigadzira musiyano we frequency, uye nzira mbiri dzechiedza dzinobatanidzwa uye dzinopinzwa muSOA amplifier mumamiriro ekuwana saturation. Nekushandisa nonlinear effects dzakadai se four-wave mixing (FWM) yeSOA amplifier, masaini emativi akawanda anodiwa pakukiya frequency yePDH anogadzirwa zvinobudirira.
3. Iyi tekinoroji inounza zvinotevera zvakanakira zvinokanganisa mashandiro:
3.1 Kukunda dambudziko reRAM uye kuwana kugadzikana kwenguva refu kwakanyanya: Chishandiso cheSOA amplifier (chinowanzo shandiswa mupakeji yebhatafurayi) chinobatanidza kudzora tembiricha uye hachina hanya nekukanganiswa kwezvakatipoteredza, chichidzivirira dambudziko reRAM kubva muchimiro chemuviri uye chinoita kuti kukiya kwehurefu hwemukati kuve kwakarurama kupfuura 5×10⁻¹¹/zuva.
3.2 Kuenzanisa mabhendi eparutivi nemazvo, kuvandudzika kukuru muhuwandu hwesignal-to-noise: Nekudzora wega huwandu hweshift hwema shifter maviri e dual-path acousto-optic frequency (100 MHz - 200 MHz) nemagetsi maviri anodzorwa nemagetsi (VCO), nguva yefrequency yemabhendi eparutivi anogadzirwa inogona kuenzaniswa zvakakwana ne free spectral range (FSR) ye reference cavity, nokudaro zvichivandudza zvikuru signal-to-noise ratio ye error signal.
3.3 Kuderedza mitengo uye kuvandudza mashandiro, zvinobatsira kuti system miniaturization: Pasina electro-optic modulator inodhura uye ma complex circuits, SOA optical amplifier inongoda simple current drive, zvichiita kuti system yese ive diki, inodhura zvishoma, uye yakakodzera kushandiswa kwe laser external field uye miniaturization.
3.4 Mashandisirwo akakura e tekinoroji iyi uye kudiwa kwayo pamusika kunosanganisira:
Maawa ekuona emuchadenga nemotokari: Hunhu hwayo hwekudzivirira nyonganyonga hunoenderana zvakakwana nezvinodiwa zvemuchadenga nemotokari dzisina vanhu.
Magiravhiti eQuantum uye maatomu anotonhora: Anogona kushandiswa pakuongorora geology nemazvo uye kufamba pasi pemvura.
Kunzwa kwefiber kwakarongeka uye radar ye coherent phased array (LiDAR): Inogona kupa matsime emwenje akamanikana zvikuru, asina kutsvedza.
Pasi pemaitiro ekuchinja kwechipiri kwequantum pasi rose uye miniaturization yequantum sensors, kudiwa kwemusika kwemamodule e laser module anodzorwa ega, asingadhuri, uye akagadzikana frequency-stabilized laser kwakawedzera zvakanyanya, uye tekinoroji iyi yepatenti inonyatsoenderana nemaitiro aya emusika.
Nguva yekutumira: Chivabvu-14-2026