Polarization electro-optic control e lemohuoa ka ho ngola femtosecond laser le modulation ea kristale ea metsi

Polarization electro-optictaolo e lemohuoa ka ho ngola femtosecond laser le modulation ea kristale ea metsi

Bafuputsi ba Jeremane ba thehile mokhoa o mocha oa taolo ea lets'oao la optical ka ho kopanya mongolo oa laser oa femtosecond le kristale ea metsi.electro-optic modulation. Ka ho kenya lera la kristale ea metsi ka har'a waveguide, taolo ea electro-optical ea boemo ba polarization ea beam e ea phethahala. Theknoloji e bula menyetla e mecha ea lisebelisoa tse thehiloeng ho chip le li-circuits tse rarahaneng tsa photonic tse entsoeng ka theknoloji ea ho ngola ea femtosecond laser. Sehlopha sa lipatlisiso se hlalositse kamoo ba entseng lipoleiti tsa wave wave tse ka sebelisoang ka har'a li-waveguide tsa silicon tse kopantsoeng. Ha motlakase o sebelisoa ho kristale ea metsi, limolek'hule tsa kristale tsa metsi lia potoloha, tse fetolang boemo ba polarization ea leseli le fetisoang ka waveguide. Litekong tse entsoeng, bafuputsi ba atlehile ka ho feletseng ho fetola polarization ea leseli likarolong tse peli tse sa tšoaneng tse bonahalang (Setšoantšo sa 1).

Ho kopanya mahlale a mabeli a bohlokoa ho fihlela tsoelo-pele e ncha ho lisebelisoa tse kopaneng tsa 3D photonic
Bokhoni ba li-laser tsa femtosecond ho ngola hantle li-waveguides ka hare ho thepa, ho e-na le ho ba holim'a metsi feela, li li etsa theknoloji e tšepisang ea ho eketsa palo ea maqhubu a maqhubu ho chip e le 'ngoe. Theknoloji e sebetsa ka ho shebana le lebone la laser le matla haholo ka har'a thepa e bonaletsang. Ha matla a khanya a fihla boemong bo itseng, lebone le fetola thepa ea thepa sebakeng sa eona sa ts'ebeliso, joalo ka pene e nang le ho nepahala ha micron.
Sehlopha sa lipatlisiso se ile sa kopanya mekhoa e 'meli ea motheo ea photon ho kenya lera la likristale tsa metsi ka har'a waveguide. Ha lebone le ntse le tsamaea ka har'a waveguide le ka har'a kristale ea mokelikeli, mohato le polarization ea borokho e fetoha hang ha sebaka sa motlakase se sebelisoa. Ka mor'a moo, sefate sa modulated se tla tsoela pele ho hasana ka karolo ea bobeli ea waveguide, kahoo e finyella phetiso ea pontšo ea optical e nang le litšobotsi tsa modulation. Theknoloji ena ea lebasetere e kopanyang mekhoa e 'meli ea theknoloji e nolofalletsa melemo ea bobeli ka sesebelisoa se le seng: ka lehlakoreng le leng, matla a mangata a khanya a tlisoang ke phello ea waveguide,' me ka lehlakoreng le leng, ho fetoha ho phahameng ha kristale ea metsi. Patlisiso ena e bula mekhoa e mecha ea ho sebelisa thepa ea likristale tsa metsi ho kenya li-waveguides ka bongata ba lisebelisoa joalo ka ha.li-modulatorsbakeng salisebelisoa tsa lifoto.

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Setšoantšo sa 1 Bafuputsi ba kentse likarolo tsa kristale ea metsi ka har'a li-waveguides tse entsoeng ka ho ngola ka ho toba ka laser, 'me sesebelisoa sa lebasetere se hlahisoang se ka sebelisoa ho fetola polarization ea leseli le fetang har'a maqhubu.

Kopo le melemo ea kristale ea metsi ho femtosecond laser waveguide modulation
Leha ho le joalooptical modulationho femtosecond laser writing waveguides e kile ea finyelloa haholo-holo ka ho sebelisa mocheso oa sebaka ho li-waveguides, thutong ena, polarization e ne e laoloa ka ho toba ka ho sebelisa likristale tsa metsi. "Mokhoa oa rona o na le melemo e 'maloa e ka bang teng: tšebeliso e tlase ea matla, bokhoni ba ho sebetsana le li-waveguide ka bomong, le ho fokotsa tšitiso lipakeng tsa maqhubu a haufi," bafuputsi ba hlokometse. E le ho hlahloba hore na sesebelisoa sena se sebetsa hantle hakae, sehlopha se ile sa kenya laser ka har'a waveguide 'me sa fetola khanya ka ho feto-fetola matla a sebelisoang lera la kristale la mokelikeli. Liphetoho tsa polarization tse hlokometsoeng ho sephetho li lumellana le litebello tsa khopolo-taba. Bafuputsi ba fumane hape hore ka mor'a hore kristale ea metsi e kopantsoe le waveguide, litšobotsi tsa modulation tsa kristale ea metsi li ile tsa lula li sa fetohe. Bafuputsi ba hatisa hore thuto e mpa feela e le bopaki ba khopolo, kahoo ho ntse ho e-na le mosebetsi o mongata o lokelang ho etsoa pele theknoloji e ka sebelisoa ts'ebetsong. Ka mohlala, lisebelisoa tsa morao-rao li fetola li-waveguides ka tsela e ts'oanang, kahoo sehlopha se sebetsa ho finyella taolo e ikemetseng ea waveguide ka 'ngoe.


Nako ea poso: May-14-2024