Uburyo bwo gukoresha modulators za acousto-optic (AOM Modulator)

Uburyo bwo gukoresha modulators za acousto-optic (AOM Modulator)

Ihame rya modulator ya Acousto-optic:

An modulator ya acousto-optique(AOM Modulator) ubusanzwe igizwe na kristu za acousto-optic, transducers, ibikoresho byo kwinjiza n'ibiyobora. Ingufu zikomoka ku mushoferi zikora kuri transducer mu buryo bw'ikimenyetso cy'amashanyarazi hanyuma zigahinduka umuraba wa ultrasonic uhinduka mu buryo bw'ikimenyetso cy'amashanyarazi. Iyo umuraba wa ultrasonic unyuze muri acousto-optic medium, utera gukanda no kurekura k'umuraba, bigatanga umuvuduko woroshye. Ubu bwoko buhinduka buri gihe uko igihe n'umwanya bisimburana, bigatuma ubwo buryo bugaragaza ubucucike busimburana, nk'aho ari umugozi uhuza ibice. Iyo urumuri runyuze muri ubwo buryo buhungabanywa n'imiraba ya ultrasonic, habaho ikintu cyo gukwirakwiza. Iki kintu cyitwa ingaruka ya acousto-optic. Mu ngaruka z'ijwi n'urumuri, umuyoboro w'amajwi urahinduka maze ukaba umuraba uhinduka "utwara" amakuru.

Imikoreshereze y'ingenzi ya modulator za acousto-optic:

Ijwi n'urumuri Q Switch (AOQS)

Imashini ihinduranya Q (AOQS) ikorera mu mwobo wa laser kandi irahindurwamo imbaraga

Agaciro ka Q mu mwobo kakoreshwa mu gukora laser zikoresha pulse zifite pulse ngufi n'imbaraga zo hejuru cyane. AOQS ikoreshwa mu guhindura ibura ry'umuyoboro wa 0-order. Iyo umushoferi wa radiyo wa AOQS ufunguye, urumuri rwa 0-order, bitewe no gukwirakwira, rubuza laser iri mu mwobo kunyeganyega, byongera igihombo cy'uwo mwobo kandi rugahagarika umusaruro wa laser. Iyo umushoferi wa radiyo azimye igihe gito, imbaraga z'urumuri zakusanyijwe mu mwobo wa laser zisohoka mu buryo bwa pulse, bityo zigatanga laser zikoresha pulse. Iki gikorwa gishobora gusubirwamo ku gipimo kirenze 100KHz. Iyo AOQS ikora muri leta ya Bragg, haba hari urumuri rumwe gusa rw'umuyoboro.

Hari imirasire myinshi yo gukwirakwiza amashanyarazi iyo ikora muri leta ya Raman-Niss.

2. Modulator/Switch ya Acousto-optic (AOM Modulator)

Udukoresho two gupima acousto-optique (AOM) muri rusange zikoreshwa hanze y'aho laser iherereye kugira ngo zihindure ubukana bwa laser incident (amplitude modulation AM). Iyi ishobora kuba modulation yoroshye ya ON/OFF yo guhindura vuba cyangwa modulation y'urwego ruhindagurika kugira ngo hagerwe ku modulation y'ubukana. Uburyo bwo guhindura bugenwa n'ubwoko bwa RF driver kandi bushobora kuba digitale (bushyizweho/buzimwa) cyangwa analog (sine, square wave, linear, random…). Muri rusange, RF drive ya AOM ikoresha frequency idahinduka. Parameter y'ingenzi yaModulator ya AOMni igihe cyo kuzamuka/kugwa, gisobanura "umuvuduko" ushoboka cyangwa uburyo bwo guhinduranya imbaraga mu buryo bw'impinduka. Igihe cyo kuzamuka/kugwa gihuye n'umurambararo w'imirasire iri muri modulator. Kubwibyo, kugira ngo ubone igihe cyo kuzamuka vuba, umurambararo w'imirasire ya laser igomba kugenzurwa. AOM ishobora gukoreshwa nk'icyuma gifunga (gufungura no kuzimya ku murongo ugenwe) ndetse no nk'icyuma gihindura imbaraga (kigenzura imbaraga z'urumuri rwoherezwa). Uburyo bwo guhinduranya imbaraga mu buryo bw'impinduka bugerwaho binyuze mu kugenzura umurambararo wa radiyo kugira ngo habeho imiraba y'amajwi muri kristu ya acousto-optic.

3. Imashini igabanya ubwiza bw'amajwi (AODF)

Imashini ihindura umurongo wa radiyo (AODF) ishobora gukora scanning ikoresheje uburyo bwo guhindura frequency ya radiyo. Aho scanning iherereye hashobora kuba ahantu hatunguranye, scanning ihoraho hamwe no guhindagurika kw'ingingo. Hashingiwe ku bunini bwa kristale, uburebure bw'umurambararo n'ingano y'umurambararo, igihe cyo gusubiza hagati ya mikorosegonda 0.05 na 15 hamwe no kugenzura neza aho nRad iherereye birashobora kugerwaho.

4. Guhindura umurongo wa acousto-optic (AOFS)

Nyuma yo kunyura mu bikoresho byose bya acousto-optic, urumuri rw'umurabyo wa laser rutanga impinduka mu buryo bw'umuvuduko. Igikoresho gihindura umuvuduko wa acousto-optic (AOFS) ni igikoresho gito cyagenewe byihariye guhindura ingano. Bitewe n'inguni zitandukanye zatoranijwe, AOFS izimura ingano hejuru cyangwa hasi hakurikijwe ingano y'ikimenyetso cya radiyo gikoreshwa, kandi ibikoresho bibiri cyangwa byinshi bishobora guhindurwa kugira ngo habeho guhuza ingano cyangwa itandukaniro ry'umuvuduko. Ibicuruzwa bya AOFS bigira inguni zifata ijwi ry'amajwi zakozwe mu buryo bwihariye, zishobora kugabanya ubwiza bw'amajwi no kongera imikorere ya AOFS.

5. Akayunguruzo gashobora guhindurwa k'amajwi (AOTF)

Akayunguruzo ka acousto-optic kagendanwa (AOTF) ni akayunguruzo k’uruhererekane rw’amajwi gafite imiterere ikomeye, gafite ikoranabuhanga kandi gashobora kugera ku buryo butaziguye. Gashobora gukoreshwa mu guhitamo vuba kandi mu buryo butunguranye uburebure bw’amajwi runaka uhereye ku mbuga za interineti cyangwa ahantu hatandukanye. Gutandukana bibaho iyo imiterere yihariye ihuye hagati y’imirasire y’amajwi. Kubwibyo, birashoboka kugenzura ibipimo bya kayunguruzo mu buryo bw’ikoranabuhanga (nk’uburebure bw’amajwi, uburebure bw’amajwi, ndetse n’uburebure bw’amajwi), bityo bigatanga uburyo bworoshye bwo kugera kuri kayunguruzo k’amajwi (ubusanzwe ni mikorosegonda), uburyo bworoshye bwo kugera kuri kayunguruzo k’amajwi (dynamic, random random).