Litšobotsi tsaAOM acousto-optic modulator
E mamella matla a phahameng a optical
AOM acousto-optic modulator e khona ho mamella matla a matla a laser, ho netefatsa hore li-laser tse matla a phahameng li ka feta hantle. Sehokelong sa laser ea fiber eohle, thefiber acousto-optic modulatore fetola kganya e sa kgaotseng ho ba kganya e phophomang. Ka lebaka la ts'ebetso e batlang e le tlase ea ts'ebetso ea pulse ea optical, boholo ba matla a khanya a fumaneha ka har'a leseli la taelo ea zero. Leseli la "diffraction" la pele le leseli la "zero-order" ka ntle ho kristale ea acousto-optic li hasana ka mokhoa oa maballo a fapaneng a Gaussian. Le hoja li kopana le maemo a thata a karohano, karolo ea matla a khanya ea leseli la zero-order e bokella moeling oa optical fiber collimator 'me e ke ke ea fetisoa ka fiber ea optical, qetellong e chesa ka collimator ea optical fiber. Sebopeho sa diaphragm se behiloe tseleng ea optical ka foreimi ea phetoho e nepahetseng ea mahlakore a tšeletseng ho thibela phetiso ea leseli le fapaneng bohareng ba collimator, 'me leseli la taelo ea zero le fetisetsoa ntlong ho thibela leseli la taelo ea zero hore le se ke la chesa optical fiber collimator.
Nako ea ho phahama ka potlako
Sehokelong sa laser-fiber, nako ea ho phahama ka potlako ea phallo ea mahlo ea AOMacouste-optic modulatore etsa bonnete ba hore pulse ea pontšo ea tsamaiso e ka feta ka katleho ho isa tekanyong e kholo ka ho fetisisa, ha e ntse e thibela lerata la motheo ho kena ka nako-domain acouste-optic shutter (time-domain pulse gate). Ntho ea mantlha ea ho fihlela nako ea ho phahama ka potlako ea li-pulses tsa optical ke ho fokotsa nako ea ho tsamaea ea maqhubu a ultrasonic ka khanya ea leseli. Mekhoa e ka sehloohong e kenyelletsa ho fokotsa bophara ba letheka la lebone la leseli la ketsahalo kapa ho sebelisa lisebelisoa tse nang le lebelo le phahameng la molumo ho etsa likristale tsa acoust-optic.
Setšoantšo sa 1 Nako ea ho phahama ha molumo oa leseli
Tšebeliso e tlaase ea matla le botšepehi bo phahameng
Sepakapaka se na le lisebelisoa tse fokolang, maemo a thata le tikoloho e rarahaneng, e fanang ka litlhoko tse phahameng mabapi le tšebeliso ea matla le ts'epahalo ea li-modulator tsa optical fiber AOM. Fiber ea opticAOM modulatore nka kristale e khethehileng ea tangential acousto-optic, e nang le boleng bo phahameng ba acousto-optic factor M2. Ka hona, tlas'a maemo a ts'oanang a ts'ebetso ea diffraction, matla a ho khanna a hlokahalang a tlaase. Optical fiber acoust-optic modulator e amohela moralo ona oa matla a tlase, o sa fokotseng tlhokahalo ea ho khanna matla a motlakase le ho boloka mehloli e fokolang ea sepakapaka, empa hape e theola mahlaseli a motlakase a lets'oao la ho khanna le ho fokotsa khatello ea mocheso oa sistimi. Ho ea ka litlhoko tse thibetsoeng (tse thibetsoeng) tsa lihlahisoa tsa sepakapaka, mokhoa o tloaelehileng oa ho kenya kristale oa optical fiber acousti-optic modulators o amohela feela mokhoa oa ho kopanya rabara oa silicone o lehlakoreng le le leng. Hang ha rabara ea silicone e hlōleha, litekanyetso tsa tekheniki tsa kristale li tla fetoha tlas'a maemo a sisinyehang, a sa finyelle litlhoko tsa ts'ebetso ea lihlahisoa tsa sefofane. Sehokelong sa laser, kristale ea optical fiber acoust-optic modulator e ts'oaroa ka ho kopanya ho lokisa mochini le silicone bonding rabara. Sebopeho sa ho kenngoa ha libaka tse ka holimo le tse ka tlaase li 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 e ntse e eketseha. E na le melemo ea matla a matla a ho senya mocheso le kabo ea tšimo ea mocheso oa symmetrical. Li-collimator tse tloaelehileng li lokisoa ka ho kopanya rabara ea silicone. Tlas'a maemo a mocheso o phahameng le ho sisinyeha, li ka 'na tsa fetoha, tse amang ts'ebetso ea sehlahisoa. Sebopeho sa mechine se se se amohetsoe ho lokisa optical fiber collimator, e ntlafatsang botsitso ba sehlahisoa le ho finyella litlhoko tsa ts'ebetso ea lihlahisoa tsa sefofane.
Nako ea poso: Jul-03-2025