Cov kauj ruam ua haujlwm ntawm qhov chaw dawb acousto-optic modulator

Cov kauj ruam ua haujlwm ntawmqhov chaw dawb acousto-optic modulator
Qhov chaw dawbacousto-optic modulatorcov tswv yim thiab tso tawm cov teeb ci ntsa iab los ntawm qhov qhib lub teeb qhov, xav tau kev sib phim meej thiab Bragg lub kaum sab xis hloov kho nrog lub thav duab peb-seem. Piv nrog rau cov koob txuas fiber, cov koob qhov chaw dawb xav tau cov kauj ruam hloov kho txoj kev kho qhov muag ntxiv, tab sis muaj qhov zoo xws li txoj kev kho qhov muag hloov pauv tau yooj yim thiab kev soj ntsuam ntawm cov chaw diffraction.

1. Cov kauj ruam teeb tsa thiab kho kom haum rau txhua qhov chaw rau cov koob acousto-optic modulator dawb
Kev teeb tsa thiab kev kho kom haum ntawm qhov chaw dawb acousto-optic modulator yog cov kauj ruam ua haujlwm rau ob tus qauv, raws li hauv qab no:
Kauj Ruam 1: Tom qab txhua yam khoom siv sab nraud thiab cov voj voog txuas nrog, kho lub cuab yeej acousto-optic rau ntawm lub thav duab kho peb-seem, kho qhov siab ntawm lub cuab yeej acousto-optic nce thiab nqis kom lub teeb laser hla dhau qhov chaw zoo tshaj plaws ntawm lub cuab yeej acousto-optic. Nco Ntsoov: Qhov chaw teeb pom kev zoo tshaj plaws yog nyob nruab nrab ntawm qhov tuab ntawm cov siv lead ua, thiab 1.5 hli deb ntawm lub electrode kub ua ntej thiab tom qab nias.
Kauj Ruam 2: Qhib lub hwj chim 24V thiab thauj lub teeb liab (nws raug pom zoo kom khaws lub teeb liab ntawm 5V thaum debugging qhov diffraction zog, yog li ntawd lub hwj chim tsav tsheb tuaj yeem txuas ntxiv ua haujlwm). Kho lub kaum sab xis Bragg ntawmlub cuab yeej acousto-opticsab laug thiab sab xis kom ua tiav qhov siab tshaj plaws thawj qib diffraction zog.
Kauj Ruam 3: Tom qab kho qhov kev txiav txim thawj zaug ntawm lub teeb diffraction ntawm lub cuab yeej acousto-optic, txhua lub teeb liab tuaj yeem thauj khoom raws li qhov yuav tsum tau kuaj.
2 0~5V hom (qhov chaw dawb)
2.1 Kev Piav Qhia Txog Kev Teeb Liab Modulation
Lub qhov (port) "0-5V" siv los thauj cov teeb liab tswj thiab yog lub teeb liab analog ntawm 0-5V. Tua thaum lub zog hluav taws xob nkag yog 0V, thiab lub zog tso zis RF ncav cuag nws qhov siab tshaj plaws thaum lub zog hluav taws xob nkag yog 5V. Txoj kev hloov kho ntawm tus qauv no yeej zoo ib yam li cov fiber txuas "0-5V analog hom", tab sis cov qauv txoj kev kho qhov muag txawv, xav tau kev teeb tsa ntxiv thiab cov kauj ruam hloov kho.
2.2 Txoj kev sib txuas
Tus "RF" ntawm lub zog tsav tsheb yog qhov chaw nres nkoj RF tso zis hluav taws xob. Thov txuas nws nrog kab teeb liab BNC sib phim, thiab lwm qhov kawg ntawm kab teeb liab yuav tsum txuas ncaj qha rau lub suab thiab lub teeb nrog BNC. Nco ntsoov tias tus qauv no siv BNC interface, uas txawv ntawm SMA interface ntawm feem ntau cov qauv txuas fiber.
2.3 Kev tswj hwm fais fab
Thov siv lub hau ntswj Phillips los tig lub pob qhov me me ntawm sab. Lub zog tig mus rau sab xis nce ntxiv, thaum lub zog tig mus rau sab laug txo qis. Thov nco ntsoov tias lub pob hloov kho lub zog ntawm tus qauv no nyob ntawm lub qhov me me ntawm sab, uas txawv ntawm qhov chaw nres nkoj "amplitude modulation" ntawm lwm cov qauv.
3 Hom hluav taws xob siab (qhov chaw dawb)
3.1 Kev Piav Qhia Txog Kev Teeb Liab Modulation
Lub qhov (port) 'modulation' siv los thauj cov teeb liab tswj thiab yog ib qho teeb liab digital TTL txheem. Lub hwj chim muab hluav taws xob ua haujlwm ntawm qib siab, thiab yuav tsum siv 5V voltage rau lub davhlau ya nyob twg "modulation" kom tsim tau RF zog tso zis. Thaum lub davhlau ya nyob twg modulation nyob ntawm qib qis, RF tso zis raug tua. Cov yam ntxwv modulation ntawm tus qauv no zoo ib yam li "high-level conduction type" ntawm fiber coupling, tab sis cov qauv txoj kev optical txawv, xav tau kev teeb tsa ntxiv thiab cov kauj ruam kho. Lus Cim: Lub hwj chim muab hluav taws xob ua haujlwm ntawm qib siab, thiab yuav tsum siv 5V voltage rau ntawm qhov kawg "modulation" kom tsim tau RF zog tso zis.
3.2 Kev tswj hwm fais fab
Thov siv lub Phillips screwdriver los tig lub qhov me me sab hauv qhov kawg ntawm "amplitude modulation". Lub zog tig clockwise nce ntxiv, thaum lub zog tig counterclockwise txo qis. Nco ntsoov tias qhov kev hloov kho lub zog ntawm tus qauv no yog qhov sib txawv rau hom kev sib txuas fiber ntau!