Iyini i-modulator ye-acousto-optic i-AOM modulator

Iyini i-modulator ye-acousto-opticI-modulator ye-AOM

Ukuguqulwa kwe-Acousto-optic kuyindlela yokuguqulwa kwangaphandle. Ngokuvamile, idivayisi ye-acousto-optic elawula ukushintshashintsha kobukhali bomsebe we-laser ibizwa ngokuthii-modulator ye-acousto-optic(i-modulator ye-AOM). Isignali eguquliwe isebenza ku-transducer ye-electroacoustic ngesimo sesignali kagesi (ukuguqulwa kwe-amplitude), bese iguqulwa ibe yinsimu ye-ultrasonic eshintsha ngesimo sesignali kagesi. Lapho amagagasi okukhanya edlula endaweni ye-acousto-optic, ngenxa yomphumela we-acousto-optic, isithwali se-optic siyaguquliwe futhi sibe yigagasi eliguquliwe lokuqina "elithwala" ulwazi.

Isimiso sokusebenza

Ukuguqulwa kwe-acousto-optickuyinqubo ebonakalayo esebenzisa umphumela we-acousto-optic ukulayisha ulwazi ku-optical frequency carrier. Isignali eguquliwe isebenza ku-electroacoustic transducer ngesimo sesignali kagesi (i-amplitude modulation), bese iguqulwa ibe yinsimu ye-ultrasonic eshintsha ngesimo sesignali kagesi. Lapho amagagasi okukhanya edlula ku-acousto-optic medium, ngenxa yomphumela we-acousto-optic, i-optical carrier iyaguquguquka futhi iba yigagasi eliguquliwe lokuqina "elithwala" ulwazi.

I-modulator ye-acousto-optic (i-modulator ye-AOM) ivame ukwakhiwa ngamakristalu e-acousto-optic, ama-transducer, amadivayisi okumunca kanye nabashayeli. Ukukhishwa kwesignali okuguquliwe okuvela kumshayeli kusebenza ku-transducer ngesimo sesignali kagesi bese kuguqulwa kube yigagasi le-ultrasonic elihlukahluka ngesimo sesignali kagesi. Lapho igagasi le-ultrasonic lidlula ku-acousto-optic medium, libangela ukucindezela kwendawo kanye nokwelulwa kwe-medium, okukhiqiza ukucindezeleka okunwebekayo. Lokhu kucindezeleka kushintsha njalo ngesikhathi nendawo, okwenza i-medium ibonise isenzakalo sokuguquguquka kobuningi, esifana ne-phase grating. Lapho ukukhanya kudlula kule medium kuphazanyiswa amagagasi e-ultrasonic, kwenzeka isenzakalo sokusabalalisa. Lesi simo sibizwa ngokuthi umphumela we-acousto-optic. Ngaphansi komphumela womsindo nokukhanya, isithwali se-optical siyaguquliwe futhi sibe yigagasi eliguquliwe "elithwala" ulwazi.

Chaza kafushane amapharamitha ayinhloko

Ukusebenza kahle kwe-diffraction kanye nokulahlekelwa kwe-modulation

2. I-Bragg Angle: Uma ukukhanya kwengozi kufakwa ku-idivayisi ye-acousto-opticKu-Bragg Angle, ukusebenza kahle kokuphambuka okuhle kakhulu kungatholakala. Amaphutha e-Angular azonciphisa ukusebenza kahle.

3. Ukuzivumelanisa ne-Angle Yokwehlukana

4. Isivinini sokushintshashintsha: Isikhathi sokushintsha kwe-optical sichazwa yisikhathi sokudlulisa igagasi lomsindo okhalweni lwe-beam kukristalu ye-A0.

5. Amandla e-RF Afanele (Amandla Okugcwala)