Impumelelo entsha kwiImodulator yeLiNbO3
Kutshanje, abaphandi baseTshayina bakhuphe ilungelo lomenzi eliphambili kwiteknoloji yokutshixa i-laser frequency yePDH. Inkqubo yokutshixa i-laser frequency yePDH esekelwe kwi-nonlinear SOA (Semiconductor Optical Amplifier) ukuvelisa iibhendi ezisecaleni. Le patent ijolise ekusombululeni amanqaku abalulekileyo entlungu kwinkqubo yokutshixa i-laser frequency yePDH (Pound-Drever-Hall) yesiqhelo ngenxa yokusetyenziswa kwe-lithium niobate (LiNbO3 modulator) kunye nezinye izinto.i-electro-optic modulator.
1. Iingxaki eziphambili zesisombululo sendabuko ziquka:
1.1 Ixabiso eliphezulu kunye nolwakhiwo oluntsonkothileyo: Iimodulators ze-electro-optic zemveli zifuna ukuqhuba kwe-RF okuntsonkothileyo kunye neesekethe ze-bias.
1.2 Uvakalelo lokusingqongileyo: Lunovelwano kutshintsho lobushushu kunye noxinzelelo, lunokuchaphazeleka ziimeko ezingaqhelekanga ze-polarisation.
1.3 Isiphumo se-Residual amplitude modulation (RAM): Oku kubangela i-DC bias yesignali yempazamo, nto leyo ekhokelela ekushukumeni kwendawo yokutshixa nge-laser kwaye ichaphazela kakhulu uzinzo lwexesha elide lwenkqubo.
2. Isisombululo esitsha esicetywayo liqela lophando sesi:
Yiyeke ngokupheleleyo i-electro-optic modulator yendabuko kwaye usebenzise uyilo oludibeneyo lwei-amplifier ye-optical ye-semiconductor(i-amplifier ye-SOA) idityaniswe nee-acousto-optic frequency shifters ezimbini ezineendlela ezimbini. Umgaqo osebenzayo ngulo: Emva kokwahlulahlula i-seed laser, itshintshwa ngokuchanekileyo yi-acousto-optic frequency shifters ezimbini ezineendlela ezimbini, nto leyo edala umahluko we-frequency, kwaye emva koko iindlela ezimbini zokukhanya ziyadityaniswa kwaye zifakwe kwi-amplifier ye-SOA kwimeko ye-gain saturation. Ngokusebenzisa iziphumo ezingezizo ezilandelelanayo ezifana nokuxuba amaza amane (FWM) kweIsikhulisi se-SOA, imiqondiso ye-multi-sideband efunekayo ukuze kutshixwe i-PDH frequency iveliswa ngokufanelekileyo.
3. Le teknoloji izisa ezi nzuzo zilandelayo zokusebenza okuphazamisayo:
3.1 Ukoyisa ingxaki ye-RAM kunye nokufezekisa uzinzo oluphezulu kakhulu lwexesha elide: Isixhobo se-amplifier se-SOA (esidla ngokuba kwiphakheji yebhabhathane) sidibanisa ulawulo lobushushu kwaye asikhathali kakhulu kukuphazamiseka kwendalo, sithintela ingxaki ye-RAM kwindlela yokusebenza kwaye sifezekisa ukuchaneka kokutshixa ubude bomngxuma okungcono kune-5×10⁻¹¹/ngosuku.
3.2 Ukuhambelana ngokuchanekileyo kweebhendi ezisecaleni, uphuculo olubonakalayo kumlinganiselo wesignali-kwingxolo: Ngokulawula ngokuzimeleyo ubungakanani bokutshintsha kwee-acousto-optic frequency shifters ezimbini ze-dual-path (100 MHz - 200 MHz) zii-oscillators ezimbini ezilawulwa yi-voltage (VCO), isithuba se-frequency seebhendi ezisecaleni ezivelisiweyo sinokufaniswa ngokugqibeleleyo nobubanzi be-free spectral (FSR) ye-reference cavity, ngaloo ndlela iphucula kakhulu umlinganiselo wesignali-kwingxolo wesignali yempazamo.
3.3 Ukunciphisa iindleko kunye nokuphucula ukusebenza kakuhle, okunceda inkqubo ibe yincinci: Ngaphandle kwe-electro-optic modulator ebiza kakhulu kunye neesekethe ezintsonkothileyo, i-SOA optical amplifier ifuna kuphela i-current drive elula, okwenza yonke inkqubo ibe ncinci ngakumbi, ibe nexabiso eliphantsi, kwaye ifaneleke ngakumbi kwizicelo ze-laser yangaphandle ezichanekileyo kunye ne-miniaturization.
3.4 Amathuba okusetyenziswa ngokubanzi kunye nemfuno yemarike yale teknoloji ibandakanya:
Iiwotshi ze-optical zesithuba nezezithuthi: Iimpawu zayo zokulwa nokuphazamiseka zihlangabezana ngokugqibeleleyo neemfuno zeenqwelo moya kunye neendawo ezingenabantu.
Ii-quantum gravimeters kunye nee-cold atomic interferometers: Zingasetyenziselwa ukuhlola i-geological ngokuchanekileyo kunye nokuhamba phantsi kwamanzi.
I-high-order fiber sensing kunye ne-coherent phased array radar (LiDAR): Ingabonelela ngemithombo yokukhanya engqindilili kakhulu, engenamanzi.
Phantsi komkhwa wenguqu yesibini yehlabathi ye-quantum kunye nokunciphisa i-quantum sensors, imfuno yemarike yeemodyuli ze-laser module ezilawulwayo, ezingabizi kakhulu, nezizinzileyo ezizinzileyo inyukile kakhulu, kwaye obu buchwephesha be-patent buhlangabezana ngokuchanekileyo nale mkhwa yemarike.
Ixesha leposi: Meyi-14-2026