A. Lub tswvyim ntawm Ultrafast Lasers
Ultrafast lasers feem ntau yog xa mus rau hom-locked lasers siv los emen ultra-luv pulses, piv txwv li ntawm femtosecond lossis picosecond ntev ntev. Ib lub npe muaj tseeb dua yuav yog Ultrashort Pults laser. Ultrashort memers yog yuav luag hom-xauv lasers, tab sis qhov hloov hloov cov nyhuv tseem tuaj yeem tsim cov Ultrashrion Pulses.
B. Hom ultrafast laser
1. Ti-sapphire lasers, feem ntau kerr lens hom-xauv, tuaj yeem tsim cov pulses li ntawm 5 fs nyob rau hauv lub sijhawm. Lawv cov zis nruab nrab yog feem ntau yog ob peb puas milliwatts, hais, 80mHz thiab tsawg dua, thiab tsawg dua, ua rau muaj lub zog siab heev. Tab sis cov titanium-sapphire lasers xav tau lub teeb tso tawm los ntawm qee lub teeb ntsuab ntsuab, uas ua rau lawv ntau dua cov nyom thiab kim.
2. Muaj ntau yam lasers tso raws, piv txwv li, siv lead ua lossis chromium-doped Laser hom-txhav tas. Txawm hais tias cov mem tes ntev ntawm cov roj teeb ntawm Diode-tso tawm yog tsis ntev li ntawm cov mem tes ntev, thiab cov mem tes ua kom ntev li cas, thiab lub zog nruab nrab (saib hauv qab) Cov.
3. Lawv tau muaj ntau tshaj li cov lasers loj hauv cov nqe lus ntawm lub zog nruab nrab, tshwj xeeb tshaj yog Peak zog, tab sis tuaj yeem yooj yim ua ke nrog cov khoom siv hluav taws xob fiber ntau. Cov kab lus ntawm hom-xauv cov lasers muab cov ntsiab lus ntxiv.
(4) hom-locked diode lasers tuaj yeem sib xyaw ua ke lossis cov kab noj hniav sab nraud ntawm lasers, thiab tuaj yeem ua haujlwm, passive hom-xauv. Feem ntau, hom-muab cov locks ua haujlwm ntawm lub siab (ob peb txhiab megahertz) mem tes repetitionals ntawm ib mem tes lub zog.
Ultrafast laser oscillators tuaj yeem yog ib feem ntawm ultrafast tshuab, xws li tuaj yeem suav nrog lub tshuab hluav taws xob ultrasonic kom nce siab lub zog thiab nruab nrab tso zis lub zog.
Ncua Sij Hawm: Jun-20-2023