Litšobotsi tsaSesebelisoa sa ho laola molumo oa AOM acousto-optic
Mamella matla a phahameng a optical
Modulator ea AOM acousto-optic e ka mamella matla a matla a laser, e netefatsa hore li-laser tse matla a phahameng li ka feta hantle. Khokahanong ea laser ea fiber eohle,modulator ea faeba acousto-optice fetola leseli le sa khaotseng hore e be leseli le pulsed. Ka lebaka la potoloho e tlase ea mosebetsi oa pulse ea optical, boholo ba matla a leseli bo fumaneha ka har'a leseli la lefela. Leseli la diffraction la tatellano ea pele le leseli la tatellano ea lefela ka ntle ho kristale ea acousto-optic li ata ka mokhoa oa mahlaseli a Gaussian a fapaneng. Leha li fihlela maemo a thata a ho arohana, karolo ea matla a leseli la leseli la tatellano ea lefela e bokellana moeling oa collimator ea fiber ea optical 'me e ke ke ea fetisoa ka fiber ea optical, qetellong e tuka ka collimator ea fiber ea optical. Sebopeho sa diaphragm se beoa tseleng ea optical ka foreimi ea tokiso ea mahlakore a tšeletseng e nepahetseng ho thibela phetiso ea leseli le pulsed bohareng ba collimator, 'me leseli la tatellano ea lefela le fetisetsoa ntlong ho thibela leseli la tatellano ea lefela ho chesa collimator ea fiber ea optical.
Nako e potlakileng ea ho phahama
Khokahanong ea laser ea fiber eohle, nako ea ho phahama ka potlako ea pulse ea optical ea AOMmodulator ea acouste-optice etsa bonnete ba hore ho otla ha lets'oao la sistimi ho ka feta ka katleho ho isa tekanyong e kholo ka ho fetisisa, ha ka nako e ts'oanang e thibela lerata la motheo ho kena ho shutter ea acouste-optic ea nako-domain (heke ea pulse ea nako-domain). Ntlha ea bohlokoa ea ho fihlela nako ea ho phahama ka potlako ea li-pulse tsa optical e ho fokotsa nako ea ho feta ha maqhubu a ultrasound ka har'a lebone la leseli. Mekhoa e meholo e kenyelletsa ho fokotsa bophara ba letheka la lebone la ketsahalo kapa ho sebelisa thepa e nang le lebelo le phahameng la molumo ho etsa likristale tsa acoust-optic.
Setšoantšo sa 1 Nako ea ho phahama ha ho otla ha leseli
Tšebeliso e tlase ea matla le ts'epo e phahameng
Lifofane tsa sepakapaka li na le mehloli e fokolang, maemo a thata le tikoloho e rarahaneng, e leng se behang litlhoko tse phahameng holim'a tšebeliso ea matla le botšepehi ba li-modulator tsa AOM tsa fiber ea optical.Modulator ea AOMe amohela kristale e ikhethang ea tangential acousto-optic, e nang le boleng bo phahameng ba acousto-optic factor M2. Ka hona, tlas'a maemo a tšoanang a ho sebetsa hantle ha diffraction, tšebeliso e hlokahalang ea matla a ho khanna e tlase. Modulator ea fiber ea optical acoust-optic e amohela moralo ona oa matla a tlase, o sa fokotseng feela tlhoko ea tšebeliso ea matla a ho khanna le ho boloka mehloli e fokolang ea sepakapaka, empa hape o fokotsa mahlaseli a motlakase a lets'oao la ho khanna le ho fokotsa khatello ea ho qhala mocheso tsamaisong. Ho ea ka litlhoko tsa ts'ebetso tse thibetsoeng (tse thibetsoeng) tsa lihlahisoa tsa sepakapaka, mokhoa o tloaelehileng oa ho kenya kristale oa li-modulator tsa fiber ea optical acousti-optic o amohela feela ts'ebetso ea ho kopanya rabara ea silicone e lehlakoreng le le leng. Hang ha rabara ea silicone e hloleha, liparamente tsa tekheniki tsa kristale li tla fetoha tlas'a maemo a ho thothomela, a sa fihlelleng litlhoko tsa ts'ebetso ea lihlahisoa tsa sefofane. Khokahanong ea laser, kristale ea modulator ea fiber ea optical acoust-optic e tsitsitsoe ka ho kopanya fixation ea mechini le silicone rabara bond. Sebopeho sa ho kenya bokaholimo bo ka holimo le bo ka tlase se lekana ka hohle kamoo ho ka khonehang, 'me ka nako e ts'oanang, sebaka sa ho kopana pakeng tsa bokaholimo ba kristale le ntlo ea ho kenya sea eketseha. Se na le melemo ea bokhoni bo matla ba ho qhala mocheso le kabo ea tšimo ea mocheso o lekanang. Li-collimator tse tloaelehileng li tsitsitsoe ka rabara ea silicone e tlamang. Tlas'a maemo a mocheso o phahameng le ho thothomela, li ka fetoha, li ama ts'ebetso ea sehlahisoa. Sebopeho sa mechini joale se se se amohetsoe ho lokisa collimator ea fiber ea optical, e ntlafatsang botsitso ba sehlahisoa le ho fihlela litlhoko tsa ts'ebetso tsa lihlahisoa tsa lifofane.
Nako ea poso: Phupu-03-2025