Iyini imodyuli ye-acousto-opticI-AOM module
I-Acousto-optic modulation iyindlela yokushintshashintsha yangaphandle. Ngokuvamile, idivayisi ye-acousto-optic elawula ukuguquguquka kokuqina kwe-laser beam ibizwa ngokuthii-acousto-optic module(Imoduli ye-AOM). Isignali eshintshiwe isebenza ku-transducer ye-electroacoustic ngendlela yesignali kagesi (i-amplitude modulation), bese iguqulwa ibe inkambu ye-ultrasonic eshintsha ngesimo sesignali kagesi. Uma amaza okukhanya edlula ku-acousto-optic medium, ngenxa yomphumela we-acousto-optic, isithwali esibonakalayo siyashintshwa sibe yigagasi eliguquliwe elinamandla “elithwala” ulwazi.
Isimiso sokusebenza
Ukushintshwa kwe-Acousto-opticinqubo ephathekayo esebenzisa umthelela we-acousto-optic ukulayisha ulwazi kusithwali sefrikhwensi yokubona. Isignali eshintshiwe isebenza ku-transducer ye-electroacoustic ngendlela yesignali kagesi (i-amplitude modulation), bese iguqulwa ibe inkambu ye-ultrasonic eshintsha ngesimo sesignali kagesi. Uma amaza okukhanya edlula ku-acousto-optic medium, ngenxa yomphumela we-acousto-optic, isithwali esibonakalayo siyashintshwa sibe yigagasi eliguquliwe elinamandla “elithwala” ulwazi.
Imoduli ye-acousto-optic (i-AOM modulator) ivamise ukwakhiwa ngamakristalu e-acousto-optic, ama-transducer, amadivaysi okumunca nezishayeli. Ukukhishwa kwesignali okushintshiwe okuvela kumshayeli kusebenza ku-transducer ngendlela yesignali kagesi bese iguqulwa ibe igagasi le-ultrasonic elihluka ngendlela yesignali kagesi. Lapho i-wave ye-ultrasonic idlula endaweni ye-acousto-optic, ibangela ukucindezelwa kwendawo kanye nokwelula kwendawo ephakathi, okukhiqiza ukunwebeka okunwebekayo. Lolu hlobo lushintsha ngezikhathi ezithile ngokuhamba kwesikhathi nendawo, okubangela ukuthi indawo emaphakathi ibonise isenzakalo sokuminyana esishintshanayo, esifana ne-grating yesigaba. Lapho ukukhanya kudlula kule medium kuphazanyiswe amagagasi e-ultrasonic, kwenzeka i-diffraction phenomenon. Lesi simo sibizwa ngokuthi umphumela we-acousto-optic. Ngaphansi komphumela womsindo nokukhanya, isithwali esibonakalayo siyashintshwa futhi sibe igagasi eliguquliwe “elithwala” ulwazi.
Chaza kafushane amapharamitha ayinhloko
Ukusebenza kahle kwe-Diffraction kanye nokulahlekelwa kwe-modulation
2. I-Angle ye-Bragg: Uma ukukhanya kwesigameko kufakwa ku-idivayisi ye-acousto-opticku-Bragg Angle, ukusebenza kahle kwe-diffraction okungcono kakhulu kungafinyelelwa. Amaphutha angama-angular azonciphisa ukusebenza kahle.
3. Ukuzivumelanisa ne-Divergence Angle
4. Isivinini sokuguquguquka: Isikhathi sokushintsha i-optical sichazwa isikhathi sokudlulisela kwegagasi lomsindo ngokhalo lwe-beam ku-crystal A0.
5. Amandla e-RF Aphelele (Amandla Okugcwalisa)
Isikhathi sokuthumela: Jun-04-2025