Intuthuko entsha kuI-modulator ye-LiNbO3
Muva nje, abacwaningi baseShayina bakhiphe ilungelo lobunikazi eliyisisekelo lobuchwepheshe bokukhiya imvamisa ye-laser ye-PDH. Uhlelo lokukhiya imvamisa ye-laser ye-PDH olusekelwe ku-nonlinear SOA (Semiconductor Optical Amplifier) ukuze kukhiqizwe amabhande aseceleni. Leli lungelo lobunikazi lihlose ukubhekana namaphuzu amaningana abalulekile obuhlungu ohlelweni lokukhiya imvamisa ye-laser ye-PDH (Pound-Drever-Hall) yendabuko ngenxa yokusetshenziswa kwe-lithium niobate (LiNbO3 modulator) nezinye izinto.i-electro-optic modulator.
1. Izinkinga eziyinhloko zesisombululo sendabuko zifaka:
1.1 Izindleko eziphakeme kanye nesakhiwo esiyinkimbinkimbi: Ama-modulators e-electro-optic avamile adinga ukushayela kwe-RF okuyinkimbinkimbi kanye namasekethe okukhetha.
1.2 Ukuzwela kwemvelo: Kuzwela ekushintsheni kwezinga lokushisa kanye nokucindezeleka, kuthambekele ekungajwayelekile kwesimo sokwahlukana.
1.3 Umphumela wokuguqulwa kwe-amplitude eseleyo (i-RAM): Lokhu kubangela ukuthambekela kwe-DC kwesignali yephutha, okuholela ekukhukhuleni kwephuzu lokukhiya nge-laser futhi kuthinte kakhulu ukuzinza kwesikhathi eside kwesistimu.
2. Isixazululo esisha esiphakanyiswe yithimba locwaningo yilesi:
Yeka ngokuphelele i-modulator yendabuko ye-electro-optic bese usebenzisa umklamo wokubambisana wei-amplifier ye-semiconductor optical(i-amplifier ye-SOA) ihlanganiswe nama-acousto-optic frequency shifters amabili. Umgomo oqondile wokusebenza uthi: Ngemva kokuhlukanisa i-seed laser, ishintshwa ngokunembile ama-frequency shifters amabili ane-dual-path acousto-optic frequency shifters, okudala umehluko wama-frequency, bese izindlela ezimbili zokukhanya zihlanganiswa bese zifakwa ku-amplifier ye-SOA esimweni sokugcwala kwe-gain. Ngokusebenzisa imiphumela engeyona eqondile njengokuxubana kwamagagasi amane (FWM) kweIsikhulisi se-SOA, izimpawu ze-multi-sideband ezidingekayo ukuze kukhiywe imvamisa ye-PDH zikhiqizwa kahle.
3. Lobu buchwepheshe buletha izinzuzo zokusebenza eziphazamisayo ezilandelayo:
3.1 Ukunqoba inkinga ye-RAM nokufeza ukuzinza kwesikhathi eside okuphezulu kakhulu: Idivayisi ye-amplifier ye-SOA (ngokuvamile ephaketheni le-butterfly) ihlanganisa ukulawulwa kokushisa futhi ayizweli kakhulu ezinkingeni zemvelo, igwema inkinga ye-RAM emshinini ongokoqobo futhi ifinyelele ukunemba kokukhiya ubude besikhala okungcono kune-5×10⁻¹¹/ngosuku.
3.2 Ukuqhathaniswa okunembile kwama-sideband, ukuthuthuka okuphawulekayo kwesilinganiso sesignali kuya komsindo: Ngokulawula ngokuzimela inani lokushintsha lama-double-path acousto-optic frequency shifters amabili (100 MHz - 200 MHz) ngama-oscillator amabili alawulwa yi-voltage (VCO), isikhawu semvamisa yama-sideband akhiqizwe singalinganiswa ngokuphelele ne-free spectral range (FSR) ye-reference cavity, ngaleyo ndlela kuthuthukiswe kakhulu isilinganiso sesignali kuya komsindo sesignali yephutha.
3.3 Ukunciphisa izindleko kanye nokuthuthukiswa kokusebenza kahle, okuhambisana nokunciphisa uhlelo: Ngaphandle kwe-electro-optic modulator ebizayo kanye namasekethe ayinkimbinkimbi, i-SOA optical amplifier idinga kuphela idrayivu yamanje elula, okwenza lonke uhlelo lube luncane kakhulu, lube nezindleko eziphansi, futhi lufaneleke kakhulu ekusetshenzisweni kwensimu yangaphandle ye-laser enembayo ephezulu kanye nokunciphisa uhlelo.
3.4 Amathemba okusetshenziswa kabanzi kanye nesidingo semakethe salobu buchwepheshe afaka:
Amawashi e-optical asemkhathini nawezimoto: Izici zawo zokulwa nokuphazamiseka zihlangabezana kahle nezidingo zezindiza kanye nezinkundla zezimoto ezingenamuntu.
Ama-gravimeter e-quantum kanye nama-interferometer e-athomu abandayo: Angasetshenziswa ekuhloleni i-geological ngokunemba okuphezulu kanye nokuzulazula ngaphansi kwamanzi.
Ukuzwa kwe-fiber okuhlelekile okuphezulu kanye ne-radar ye-array ehlanganisiwe (i-LiDAR): Kunganikeza imithombo yokukhanya okubhekiselwe kuyo enobubanzi obuncane kakhulu, engenamanzi.
Ngaphansi komkhuba wenguquko yesibili yomhlaba wonke ye-quantum kanye nokunciphisa izinzwa ze-quantum, isidingo semakethe samamojula we-laser module alawulwayo, ashibhile, futhi azinzile azinzile sikhuphuke kakhulu, futhi lobu buchwepheshe be-patent buhlangabezana kahle nalo mkhuba wemakethe.
Isikhathi sokuthunyelwe: Meyi-14-2026