Pulse zaus tswj ntawm laser pulse tswj tshuab

Pulse zaus tswj ntawmlaser pulse tswj technology

1. Lub tswv yim ntawm Pulse zaus, laser pulse Rate (Pulse Repetition Rate) yog hais txog tus naj npawb ntawm laser pulses emitted ib lub sij hawm, feem ntau nyob rau hauv Hertz (Hz). High zaus pulses yog tsim nyog rau siab repetition tus nqi daim ntawv thov, thaum uas tsis muaj zaus pulses yog haum rau siab zog ib tug mem tes hauj lwm.

2. Kev sib raug zoo ntawm lub hwj chim, mem tes dav thiab zaus Ua ntej laser zaus tswj, kev sib raug zoo ntawm lub hwj chim, mem tes dav thiab zaus yuav tsum tau piav qhia ua ntej. Muaj kev sib cuam tshuam ntawm lub zog laser, zaus thiab pulse dav, thiab kho ib qho ntawm cov kev txwv feem ntau yuav tsum xav txog ob qho kev txwv kom ua kom zoo dua ntawm daim ntawv thov.

3. Txoj kev tswj cov mem tes zaus

a. Sab nraud tswj hom loads zaus teeb liab sab nraum lub hwj chim mov, thiab kho lub laser mem tes zaus los ntawm kev tswj lub zaus thiab lub luag hauj lwm voj voog ntawm lub loading teeb liab. Qhov no tso cai rau cov zis mem tes kom synchronized nrog lub teeb liab thauj khoom, ua rau nws tsim nyog rau cov ntawv thov uas xav tau kev tswj xyuas meej.

b. Internal tswj hom Lub zaus tswj lub teeb liab yog tsim rau hauv lub zog tsav, tsis muaj cov teeb liab sab nraud ntxiv. Cov neeg siv muaj peev xwm xaiv ntawm ib tug ruaj built-in zaus los yog adjustable nyob rau hauv tswj zaus kom yooj yim dua.

c. Kho qhov ntev ntawm lub resonator los yogelectro-optical modulatorCov yam ntxwv zaus ntawm lub laser tuaj yeem hloov pauv los ntawm kev kho qhov ntev ntawm lub resonator lossis siv lub tshuab hluav taws xob-kho qhov muag. Cov txheej txheem ntawm cov kev cai siab zaus no feem ntau siv rau hauv cov ntawv thov uas xav tau lub zog nruab nrab siab dua thiab luv dua pulse widths, xws li laser micromachining thiab kev kho mob.

d. Acousto Optic Modulator(AOM Modulator) yog ib qho cuab yeej tseem ceeb rau kev tswj cov mem tes zaus ntawm laser pulse tswj tshuab.AWM Modulatorsiv cov nyhuv acousto optic (uas yog, lub tshuab oscillation siab ntawm lub suab nthwv dej hloov lub refractive index) los hloov kho thiab tswj cov nqaj laser.

4. Intracavity modulation thev naus laus zis, piv nrog cov kev hloov pauv sab nraud, kev hloov pauv hauv lub cev tuaj yeem ua kom muaj zog ntau dua, lub zog siab.mem tes laser. Cov hauv qab no yog plaub hom kev hloov pauv intracavity:

a. Tau txais kev hloov pauv los ntawm kev hloov pauv sai sai ntawm lub twj tso kua mis, qhov nce nruab nrab particle tus lej inversion thiab nce coefficient tau tsim sai, dhau ntawm qhov kev tawm dag zog, uas ua rau muaj kev nce ntxiv hauv photons hauv kab noj hniav thiab lub cim ntawm luv mem tes laser. Txoj kev no yog tshwj xeeb tshaj yog nyob rau hauv semiconductor lasers, uas tuaj yeem tsim cov pulses ntawm nanoseconds mus rau kaum tawm picoseconds, nrog ib tug repetition tus nqi ntawm ob peb gigahertz, thiab yog dav siv nyob rau hauv lub teb ntawm optical kev sib txuas lus nrog cov ntaub ntawv siab kis tus nqi.

Q hloov (Q-switching) Q keyboards suppress optical tawm tswv yim los ntawm kev qhia txog kev poob siab nyob rau hauv lub laser kab noj hniav, tso cai rau cov txheej txheem siv los tsim ib tug particle pej xeem reversal deb tshaj qhov pib, khaws cia ib tug loj npaum li cas ntawm lub zog. Tom qab ntawd, qhov poob hauv cov kab noj hniav yog txo kom sai (uas yog, Q tus nqi ntawm cov kab noj hniav yog nce), thiab cov lus pom zoo rov qab qhib dua, kom lub zog khaws cia tawm hauv daim ntawv ntawm ultra-luv high-siv pulses.

c. Hom Xauv generates ultra-luv pulses ntawm picosecond los yog txawm femtosecond theem los ntawm kev tswj cov theem kev sib raug zoo ntawm txawv longitudinal hom nyob rau hauv lub laser kab noj hniav. Hom-locking tshuab yog muab faib ua passive mode-locking thiab active mode-locking.

d. Cavity Dumping Los ntawm khaws cia lub zog nyob rau hauv lub photons nyob rau hauv lub resonator, siv ib tug tsawg-tsawg kab noj hniav daim iav kom zoo khi cov photons, tswj lub xeev poob qis nyob rau hauv cov kab noj hniav rau ib lub sij hawm. Tom qab ib lub voj voog ncig mus ncig, cov mem tes muaj zog yog "pov tseg" tawm ntawm cov kab noj hniav los ntawm kev hloov cov kab noj hniav sab hauv, xws li acousto-optic modulator lossis electro-optic shutter, thiab luv luv pulse laser yog tawm. Muab piv rau Q-hloov, kab noj hniav khoob tuaj yeem tuav lub siab dav ntawm ob peb nanoseconds ntawm qhov rov ua dua siab dua (xws li ob peb megahertz) thiab tso cai rau cov mem tes ntau dua, tshwj xeeb tshaj yog rau cov ntawv thov uas xav tau cov nqi rov ua dua thiab luv pulses. Ua ke nrog lwm cov txheej txheem tsim cov mem tes, lub zog pulse tuaj yeem txhim kho ntxiv.

Pulse tswj ntawmlaseryog cov txheej txheem nyuaj thiab tseem ceeb, uas suav nrog kev tswj pulse width, pulse zaus tswj thiab ntau yam kev hloov kho. Los ntawm kev xaiv tsim nyog thiab siv cov txheej txheem no, kev ua haujlwm laser tuaj yeem raug kho kom raug raws li qhov xav tau ntawm cov ntawv thov sib txawv. Nyob rau hauv lub neej yav tom ntej, nrog kev tshwm sim tsis tu ncua ntawm cov ntaub ntawv tshiab thiab cov thev naus laus zis tshiab, lub tshuab pulse tswj tshuab ntawm lasers yuav ua rau muaj kev cuam tshuam ntau dua, thiab txhawb txoj kev loj hlob ntawmlaser tshuabnyob rau hauv cov kev taw qhia ntawm ntau dua precision thiab dav daim ntawv thov.