Taolo ea electro-optic ea polarization e etsoa ka ho ngola ka laser ea femtosecond le ho feto-fetoha ha kristale ea metsi.

Electro-optic ea polarizationTaolo e etsoa ka ho ngola ka laser ea femtosecond le ho feto-fetoha ha kristale ea metsi

Bafuputsi ba Jeremane ba qapile mokhoa o mocha oa taolo ea matšoao a optical ka ho kopanya mongolo oa laser oa femtosecond le kristale ea metsiphetoho ea electro-opticKa ho kenya lera la kristale ea metsi ka har'a leqhubu la maqhubu, taolo ea electro-optical ea boemo ba polarization ea mahlaseli e ea phethahala. Theknoloji ena e bula menyetla e mecha ka ho felletseng bakeng sa lisebelisoa tse thehiloeng ho chip le lipotoloho tse rarahaneng tsa photonic tse entsoeng ka theknoloji ea ho ngola ea laser ea femtosecond. Sehlopha sa lipatlisiso se qaqisitse kamoo se entseng lipoleiti tsa maqhubu tse ka fetoloang ka har'a li-waveguide tsa silicon tse kopantsoeng. Ha motlakase o sebelisoa ho kristale ea metsi, limolek'hule tsa kristale ea metsi lia potoloha, e leng se fetolang boemo ba polarization ba leseli le fetisoang ho leqhubu la maqhubu. Litekong tse entsoeng, bafuputsi ba atlehile ho fetola polarization ea leseli ka maqhubu a mabeli a fapaneng a bonahalang (Setšoantšo sa 1).

Ho kopanya mahlale a mabeli a bohlokoa ho fihlella kgatelopele e ntjha disebedisweng tse kopantsweng tsa 3D photonic
Bokhoni ba li-laser tsa femtosecond ba ho ngola li-waveguides ka nepo botebong ba thepa, ho fapana le ho ngola feela holim'a eona, bo etsa hore e be theknoloji e tšepisang ho eketsa palo ea li-waveguides ho chip e le 'ngoe. Theknoloji ena e sebetsa ka ho tsepamisa lebone la laser le matla a holimo ka har'a thepa e bonaletsang. Ha matla a khanya a fihla boemong bo itseng, lebone le fetola thepa ea thepa moo e sebelisoang teng, joalo ka pene e nang le ho nepahala ha micron.
Sehlopha sa bafuputsi se kopantse mekhoa e 'meli ea motheo ea photon ho kenya lera la likristale tsa metsi ka har'a leqhubu la maqhubu. Ha leqhubu le ntse le feta ka har'a leqhubu la maqhubu le ka har'a kristale ea metsi, mohato le polarization ea leqhubu lia fetoha hang ha tšimo ea motlakase e sebelisoa. Ka mor'a moo, leqhubu le fetotsoeng le tla tsoela pele ho ata ka karolo ea bobeli ea leqhubu la maqhubu, kahoo le fihlella phetiso ea lets'oao la optical le litšobotsi tsa modulation. Theknoloji ena e kopantsoeng e kopanyang mahlale ana a mabeli e nolofalletsa melemo ea bobeli sesebelisoa se le seng: ka lehlakoreng le leng, bongata bo phahameng ba khanya bo tlisoang ke phello ea leqhubu la maqhubu, 'me ka lehlakoreng le leng, ho feto-fetoha ho hoholo ha kristale ea metsi. Phuputso ena e bula litsela tse ncha tsa ho sebelisa thepa ea likristale tsa metsi ho kenya li-waveguide ka bongata bohle ba lisebelisoa joalo kali-modulatorbakeng salisebelisoa tsa fotonic.

Setšoantšo sa 1 Bafuputsi ba kentse likarolo tsa kristale ea metsi ka har'a li-waveguide tse entsoeng ka mongolo o tobileng oa laser, 'me sesebelisoa se kopantsoeng se ka sebelisoang ho fetola polarization ea leseli le fetang ka har'a li-waveguide.

Tšebeliso le melemo ea kristale ea metsi ho femtosecond laser waveguide modulation
Leha ho le jwalophetoho ea opticalho li-waveguides tsa ho ngola ka laser ea femtosecond li ne li fihlelletsoe pele haholo-holo ka ho sebelisa ho futhumatsa ha 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-waveguides ka bomong ka boikemelo, le ho fokotsa tšitiso lipakeng tsa li-waveguides tse haufi," bafuputsi ba hlokomela. Ho leka katleho ea sesebelisoa, sehlopha se kentse laser ka har'a waveguides 'me sa fetola leseli ka ho fetola motlakase o sebelisitsoeng lera la kristale ea metsi. Liphetoho tsa polarization tse bonoang tlhahisong li lumellana le litebello tsa khopolo-taba. Bafuputsi ba boetse ba fumane hore ka mor'a hore kristale ea metsi e kopanngoa le waveguides, litšobotsi tsa modulation tsa kristale ea metsi li ile tsa lula li sa fetoha. Bafuputsi ba hatisa hore thuto ke bopaki feela ba khopolo, kahoo ho ntse ho e-na le mosebetsi o mongata o lokelang ho etsoa pele theknoloji e ka sebelisoa ts'ebetsong. Mohlala, lisebelisoa tsa hajoale li fetola li-waveguides tsohle ka tsela e tšoanang, kahoo sehlopha se ntse se sebetsa ho fihlela taolo e ikemetseng ea waveguides ka 'ngoe.