Cov ntawv thov ntawm Mid-Infrared Pulsed fiber ntau lasers

Mid-Infrared Laserhais txog electromagnetic vuag nrog nthwv dej nyob rau hauv 3μm ~ 1000μm band; Nyob rau hauv thaj teb ntawm laser thev naus laus zis, nruab nrab-infrared feem ntau txhais tau tias yog 2μm ~ 5μm band. Mid-Infrared lasers muaj cov nqi sib txawv wavelength Ranges thiab cov txiaj ntsig kev nqus cov txiaj ntsig, thiab haum rau ntau yam kev thov kev xaiv; Thaum pulsed fiber ntau lasers tau qhia thoob app ua rau kev lag luam kev lag luam thiab lwm daim teb zoo li cov nqaj siab zoo, qhov chaw ruaj khov thiab cov qauv kev sib cav.

Mid-infrared band muaj ob qho kev sib kis lub ntsej muag huab cua (3 ~ 5 μm thiab 8 ~ 12 μm cheeb tsam). Nyob rau hauv cov bands, kev nqus ntawm lub ntsiab lus tseem ceeb hauv cov huab cua yog qhov tsawg heev, uas yog tsim rau cov chaw taws teeb, nrhiav kom muaj lwm daim teb.
Mid-infrared band yog nyob rau hauv txoj kev co resonce cheeb tsam ntawm ntau cov molecules, gases thiab cov roj av muaj kev nqus ntawm nruab nrab ntawm nruab nrab-infrared. Cov yeeb yaj kiab no ua rau theem nrab infrared muaj cov ntawv thov tseem ceeb hauv kev tshawb xyuas kev tsom xam, ib puag ncig kev kuaj mob thiab lwm thaj chaw.

Cov thev naus laus zis ntawm nruab nrab-infrared pulsed fiber ntau lasers
1. Tau Txais Nruab Nrab Xaiv
① Tsis tshua muaj fiber ntau-doped fiber ntau:
Er³ (Ethium ion): Feem ntau siv los ua tiav cov zis laser laser hauv 2.7 ~ 2.8 μm, cov chaw taws teeb meem, cov chaw taws teeb. Nws lub zog theem qauv ua rau nws los tsim cov nyiaj las-infrared nruab nrab hauv cov xwm txheej.
Ho³⁺ (Holmium ion): tuaj yeem tsim cov lasers hauv 2. {}}} ~ Roped nrog rau pr³ed nrog pr³ed. Cov pawg no nyob hauv qhov chaw sib kis huab cua, muaj kev nyab xeeb rau tib neeg lub qhov muag thiab muaj daim ntawv thov tus nqi hauv laser radar thiab lwm thaj teb.
Tm³n (thulium ion): tuaj yeem tsim cov lasers hauv 2.3 μm band, uas yog cov muaj nuj nqis rau qee yam kev txheeb xyuas tshwj xeeb thiab kev siv.
② Kev hloov pauv tsis sib xws:
Opo (Optical parametric etcillator): Raws li cov txheej txheem ua kom muaj zog hauv cov muaju ua kom muaj zog, lub zog ntawm cov twj tso kua mis tau hloov pauv mus rau hauv teeb liab teeb thiab lub teeb liab. Los ntawm kev xaiv cov muaj peev xwm uas tsim nyog nothlinerals tsim nyog thiab oscillator tsim, band leater hauv nruab nrab ntawm nruab nrab-infrared band tuaj yeem tau txais, thiab kev hloov kho tuaj yeem ua tiav nyob rau hauv ib qho wavelength.
DFG (txhawb nqa Raman tawg): Mid Infrared Lasers yog tsim siv Ramas scattering nyhuv. Los ntawm kho cov ntsuas ntawm lub teeb taub hau thiab cov yam ntxwv ntawm Raman nruab nrab, nruab nrab-infrared laser rabeengths tuaj yeem ua tiav, tab sis yuav tsum muaj zog feem ntau yuav tsum tau ua.
2. Pulse tiam tiam
① Q-hloov tshuab:
Ua kom nquag Q-Hloov: lub sijhawm poob lossis cov twj tso hluav taws xob ntawm lub lasrulation teeb liab, yog li ntawd lub photine hloov pauv tsis tu ncua, yog li tsim cov zis laser. Piv txwv li, lub laser yog hloov kho siv cov khoom siv xws li Acousto-optic modulator lossis electro-optic modulator los tsim cov pulses. Txoj kev no tuaj yeem tswj tau cov kev rov ua dua tshiab thiab cov mem tes dav ntawm cov mem tes, tab sis yuav tsum muaj cov khoom siv ntau zog, uas ua rau muaj kev nyuaj ntawm cov kab ke.
Passive Q-Switching: Qhov tsis haum xeeb ntawm passive Cheebtsam xws li siv los ua lub photon ntom ntom hauv cov laser kab noj hniav. Thaum lub photon ceev nce mus txog qee yam kev pib, kev nqus coefficient ntawm cov kev hloov pauv hloov, yog li hloov pauv ntawm laser kab noj hniav thiab ua rau cov pulsed ulsed. Passive Q-Switching muaj cov qauv yooj yim thiab tus nqi qis, tab sis kev rov ua dua zaus thiab cov mem tes dav ntawm cov mem tes yog qhov nyuaj rau kev tswj hwm.
② Hom-Kev Ntsuas Cov Tshuab:
Cov khoom siv muaj peev xwm nqus tau (MSA) hom kev xauv: Cov ntaub ntawv nrog cov khoom siv ntsuas phoo, xws li Graphene, Carbon Nanotubes, thiab lwm yam). Cov ntaub ntawv no muaj cov khoom siv tsis muaj zog thiab muaj kev sib txuas ua tsis tau zoo rau lub teeb muaj zog, yog li ua tiav cov mem tes txhaws thiab tsim tawm hom-xauv.
Nonlinear Polarization Kev Sib Hloov (NPR Nyob rau hauv kev txiav txim ntawm kev ua haujlwm ntawm cov tub rog intracavity, cov kev ua yeeb yam uas nthuav tawm zoo ib yam li kev nqus tau zoo ib yam li cov kev nqus tau zoo ib yam li lub cev khov kho, yog li ua tiav hom ntsuas phoo. Cov thev naus laus zis no tsis yog txwv los ntawm cov qhab sib txawv thiab lub sijhawm so kom ntev thiab muaj kev puas tsuaj ntawm cov yam ntxwv yooj yim, thiab yog qhov haum rau cov hem-high zog femtosecond pulse.
Zaus ua haujlwm hloov tswv yim (FSF) Hom Xauv Me Nyuam: Los ntawm ib qho kev tawm suab paj nruag nyob rau hauv cov kab ke tso tawm thiab pub rau cov hom ruaj khov-kaw mem tes ua ntu zus. Txoj kev ntsuas phoo no tuaj yeem ua tiav qhov kev rov ua dua siab zaus thiab nqaim mem tes dav ntawm pulses.
3. Cov kev sib tw tseem ceeb
① Kev Tswj Cov Kev Tswj Xyuas Thermal:
Mid-infrared mem tes fiber ntau lasers tsim ntau lub tshav kub thaum ua haujlwm. Yog tias cov cua kub tsis tuaj yeem raug cuam tshuam tsis tau raws sijhawm thiab ua kom zoo, nws yuav ua rau muaj teeb meem xws li laser kev ua rau muaj kev puas tsuaj thiab kev ua kom muaj fiber ntau. Yog li ntawd, nws yog ib qho tsim nyog los txais yuav tshav kub ua kom sov thiab siv cov tshuab hluav taws xob tsim nyog, thiab siv cov khoom siv tshuab hluav taws xob tsim nyog kom ntseeg tau tias lub lag luam laser.
② Photo Daus ntom:
Nyob rau hauv high-fais fab nqus tej yam kev mob, lub photon darkening nyhuv nyob rau hauv tsawg-doped optical appers yuav cuam tshuam rau kev ua tau zoo thiab lub neej ntawm laser. Photon darkening yog hais txog qhov tshwm sim uas thaum lub teeb ci ntsa iab yog ntes los ntawm lub teeb pom kev zoo, cov hluav taws xob tsim kom muaj zog los ntawm cov cuab yeej muaj zog, ua rau muaj kev hloov pauv ntawm cov khoom siv. Txhawm rau kom txo qhov cuam tshuam ntawm lub photon tsaus nyhuv cuam tshuam, txhim kho cov txheej txheem npaj kho tshiab, xaiv ib qho khoom siv kho tshiab, xaiv ib qho kev ua haujlwm tsim nyog, thiab lwm yam.
③ Qhov kev txwv ntawm nruab nrab-infrared optical fiber ntau cov ntaub ntawv:
Tam sim no, cov hom tshuaj muaj fiber ntau uas tuaj yeem siv rau hauv nruab nrab cov teeb meem, thiab cov khoom siv kho tshiab, thiab cov kws kho mob ntawm lub qhov muag fiber. Piv txwv li, Txawm hais tias fluoride iav fiber ntau yog cov siv hluav taws xob nruab nrab ntawm cov khoom siv roj teeb hluav taws xob nruab nrab, uas muaj kev txwv lub hwj chim ntawm cov nyom; Sulfide iav fiber muaj teeb meem xws li cov tshuaj tsis zoo thiab kev nyuaj hauv kev npaj. Yog li ntawd, nws yog ib qho tsim nyog los tshawb nrhiav thiab tsim tshiab nruab nrab cov khoom siv fiber ntau yam kom ua tau cov khoom siv kev txhim kho kho kom haum xeeb ntawm nruab nrab lasers pulsed fiber ntau lasers.

Daim ntawv thov tseem ceeb
1. Kev Kho Mob thiab Kev Siv Hluav Taws Xob
① Laser phais
Lub hauv paus ntsiab lus: nruab nrab-infrared lasers (2-5 μm band) tuaj yeem ntseeg tau los ntawm cov roj av molecules, thiab kwv yees li 70% ntawm tib neeg cov nqaij yog dej. Qhov no tso cai rau lub zog ntawm nruab nrab ntawm nruab nrab lasers kom muaj kev xav txog tib neeg cov ntaub so ntswg, txo thermal kev puas tsuaj rau ib puag ncig cov ntaub so ntswg. Piv txwv li, hauv ophthalmic phais, cov yam ntxwv no tuaj yeem siv los ua cov hniav kub siab tsis ua rau muaj kev puas tsuaj rau lwm lub qhov muag.
Cov txiaj ntsig zoo: piv nrog pom lub teeb lossis ze-infrared laser kev phais thiab qis dua kev phais cov neeg mob thiab txo lub sijhawm mob thiab lub sijhawm rov qab.
Listing daim ntawv lo-dawb cov ntaub so ntswg
Cov Ntsiab Cai: Piv txwv, Optical Coography (Oct) siv cov khoom plig qis dua ntawm nruab nrab ntawm cov ntaub so ntswg. Thaum nruab nrab lub teeb yog irradiated ntawm cov ntaub so ntswg, nqaij txheej ntawm qhov tob tob yuav muaj kev sib txawv ntawm cov teeb liab sib txawv. Los ntawm kev sau thiab ua cov cim no los ntawm cov ntawv kuaj pom, ib qho peb-seem cov duab duab ntawm cov ntaub so ntswg tuaj yeem tsim.
Cov txiaj ntsig zoo: Txoj kev ua piv txwv no tsis xav tau cov ntaub so ntswg, tsis txhob siv cov ntaub so ntswg uas muaj kev puas tsuaj rau cov ntaub so ntswg, thiab cov tshuaj muaj zog rau kev kuaj mob ntxov thiab kho cov kab mob.
2. Kev Tswj Xyuas Ib puag ncig thiab cov roj pom
① trace nrhiav
Lub hauv paus ntsiab lus: Ntau cov pa roj (xws li co₂, CHON, thiab lwm yam) muaj cov cim kev nqus tau zoo nyob hauv nruab nrab-infrared band. Los ntawm aiming lub laser emulted los ntawm nruab nrab-infrared pulser fiber ntau laser ntawm cov roj nqus teeb pom kev zoo, cov pa roj tuaj yeem txiav txim siab. Piv txwv li, CO₂ muaj qhov nqus tau lub ncov siab nqus ntawm 4.26μμ. Los ntawm kev kuaj pom ntawm lub zog laser ntawm lub wavelength, cov concentration ntawm kev koom ua ke tuaj yeem ua tau zoo.
Cov txiaj ntsig zoo: Mid-infrared pulsed fiber ntau lasers muaj cov yam ntxwv ntawm cov txiaj ntsig siab, thiab tuaj yeem tshawb xyuas cov kev saib xyuas ib puag ncig, thiab kev tshawb fawb txog kev nyab xeeb hloov pauv.
② atmospheric Pa Tshuaj Paus
Cov hauv paus ntsiab lus: cov kuab paug nyob rau hauv cov huab cua (xws li nitrogen oxides, thiab lwm yam) kuj muaj cov yam ntxwv nqus tau hauv nruab nrab ntawm nruab nrab. Los ntawm scanning cov huab cua nrog ib nrab-infrared pulser pulser pulser pulser, cov messentration faib ntawm ntau cov pa phem tuaj yeem kuaj pom ib txhij. Piv txwv li, los ntawm kev ntsuas cov kev nqus ntawm lasers ntawm txawv wavelengths nyob rau hauv cov huab cua, ib daim duab qhia spatial faib ntawm cov pa phem tuaj yeem kos.
Cov txiaj ntsig zoo: Qhov chaw taws teeb tsis pom kev no tuaj yeem ua rau cov qauv kev tiv thaiv kev tiv thaiv kev tiv thaiv kev tiv thaiv ib puag ncig thiab huab cua zoo kev ntsuas.
3. Kev Ua Haujlwm
① polymer / semiconductor Precision Ua
Lub hauv paus ntsiab lus: Mid-infrared lasers yuav ntseeg tau ntseeg los ntawm cov khoom siv polymers thiab cov khoom siv roj semiconduct thiab ua kom tiav cov khoom siv tshem tawm lossis hloov kho cov khoom siv. Thaum lub sijhawm ua kom haum, los ntawm kev tswj hwm qhov ntsuas ntawm lub laser (xws li drilling, thiab lwm yam haujlwm tuaj yeem ua nrog cov haujlwm siab. Piv txwv li, nyob rau hauv semiconductor chip tsim, nruab nrab-infrared lasers tuaj yeem siv los ua tiav cov kab mob me ntawm silicon wafers thiab ua tiav kev sib koom ua ke thiab kev ua tau zoo ntawm cov chips.
Cov txiaj ntsig zoo: piv nrog cov kev ua haujlwm ib txwm ua lossis photolithogred laser muaj cov txiaj ntsig laser, thiab ua kom muaj kev ua kom muaj kev ntxhov siab thiab txhim kho cov khoom lag luam zoo thiab muaj kev ntseeg tau.
②inFraned pob tshab siv
Lub hauv paus ntsiab lus: qee cov ntaub ntawv pob tshab cov ntaub ntawv (xws li cov iav chalcogenide) muaj kev hloov pauv zoo hauv nruab nrab-infrared band. Thaum cov ntaub ntawv txiav los ntawm nruab nrab-infrared pulsed fiber ntau lasers, ua rau cov khoom siv cua sov, ua rau cov khoom siv me me lossis vaporize, yog li ua tiav kev txiav. Los ntawm kev kho cov kab ntsuas thiab cov tsis ntsuas ntawm lub laser, cov khoom ntawm ntau yam duab thiab ntau sizes tuaj yeem txiav.
Cov txiaj ntsig zoo: Qhov kev txiav no muaj qhov zoo ntawm cov npoo, uas tuaj yeem ua kom tau cov kev xav tau ntawm cov khoom siv hluav taws xob infrarent pob tshab khoom.
4. Kev Tiv Thaiv Lub Tebchaws thiab Kev Ruaj Ntseg
①inFrared Countermered
Lub hauv paus ntsiab lus: hauv kev siv tub rog, nruab nrab-infrared pulsed cov duab sib txuam, thiab lwm yam khoom siv tau ruaj khov los yog siv tsis tau, yog li tiv thaiv ib tus kheej lub hom phiaj.
Cov txiaj ntsig zoo: Mid-infrared lasers muaj cov yam ntxwv zoo hloov cua nab thiab muaj zog tiv thaiv kev cuam tshuam rau kev cuam tshuam. Lawv tuaj yeem siv cov khoom muag tseem ceeb hauv kev sib ntaus sib tua ua ke thiab txhim kho kev sib ntaus sib tua kev sib ntaus sib tua thiab muaj sia nyob ntawm cov khoom siv tub rog.
② Laser radar (Lidar)
Cov hauv paus ntsiab lus: Chav av xam cov kev ncua deb, qhov siab thiab lwm yam ntaub ntawv ntawm lub hom phiaj los ntawm emitting laser pulses thiab tau txais cov cim qhia los ntawm lub hom phiaj. Mid-Infrared Mem Tes Fiber ntau dua tuaj yeem ua tiav lub sijhawm ntev thiab siab dua thiab siab dua thiab muaj zog. Piv txwv li, hauv cov ntawv thov xws li kos npe rau sabcabrographic thiab phiaj xwm cim, nruab nrab-infrared laser laser radar tuaj yeem tau txais cov ntaub ntawv cov ntsiab lus ntxaws ntxiv.
Cov txiaj ntsig zoo: piv nrog microwe microwave radars, nruab nrab-infraruted laser thiab muaj cov ntawv thov tseem ceeb tshaj plaws hauv kev tiv thaiv kev ua yeeb yam, thiab tsav tsheb tseem ceeb thiab lwm daim teb.
③ Cov chaw taws teeb kom pom kev tawg
Lub hauv paus ntsiab lus: Ntau cov khoom tawg (xws li dynamite, tshuaj, thiab lwm yam) muaj tus yam ntxwv muaj peev xwm hauv nruab nrab ntawm nruab nrab-infrared band. Siv cov mem tes fiber ntau ntawm cov phiaj xwm kev ua kom pom kev zoo, thiab txiav txim siab seb puas muaj kev soj ntsuam qhov tseeb ntawm kev txheeb xyuas cov xeeb ceem. Piv txwv li, hauv kev ruaj ntseg tshuaj xyuas thiab chaw nres nkoj, nruab nrab ntawm cov chaw taws teeb Laser Laser Laser Laser Laser Laser Laser Laser Laser Laser Laser Laser tuaj yeem siv los soj ntsuam cov neeg ua haujlwm thiab lub nra.
Cov txiaj ntsig: Qhov kev pom deb pom kev kawm tau qhov zoo ntawm tsis tiv tauj, nrawm thiab raug. Nws tuaj yeem ntes cov teeb meem kev nyab xeeb uas tsis muaj kev cuam tshuam rau kev ua haujlwm ib txwm muaj, thiab ua kom cov pej xeem muaj kev nyab xeeb thiab Xaus Saus.
5. Kev tshawb fawb txuj ci
① ultrafast spectroscopy
Lub hauv paus ntsiab lus: Ultrafast spectroscopy kev hloov pauv ntawm cov yam ntxwv zoo nkauj ntawm cov tshuaj hauv ib theem luv luv (femtosecond theem). Mid-Infrared Pulsed fiber ntau lasers tuaj yeem tsim cov qauv luv luv, uas tuaj yeem siv los ua kom muaj cov lus teb kom muaj ultrafast. Piv txwv li, los ntawm cov tshuaj ntsuam xyuas twj tso kua mis, cov qauv tso rau ntawm lub sijhawm sib txawv, yog li yuav tsum tau kawm txog cov txheej txheem elurrafast, yog li los kawm cov txheej txheem elurrafast, yog li los kawm cov txheej txheem elurrafast, yog li los kawm cov txheej txheem elurrafast, yog li los kawm cov txheej txheem elurrafast, yog li los kawm cov txheej txheem elurraft zoo xws li lub xeev hluav taws xob thiab kev co hluav taws xob thiab kev co hluav taws xob thiab kev co hluav taws xob thiab kev co hluav taws xob thiab kev co hluav taws xob thiab kev co hluav taws xob thiab kev co hluav taws xob thiab kev co hluav taws xob thiab kev co hluav taws xob thiab kev co hluav taws xob.
Cov txiaj ntsig zoo: Nws muab txoj kev tshawb fawb muaj zog rau kev ua liaj ua teb, physics, thiab cov ntaub ntawv txuj ci, thiab cov txheej txheem kev ua haujlwm zoo ntawm cov tshuaj.
② Tus Molecule Molecule Molecule Molecule
Lub hauv paus ntsiab lus: kev sib cuam tshuam ntawm nruab nrab ntawm ib nrab lasers thiab molecules tuaj yeem siv los ntes, txav thiab tswj cov roj txias molecules. Los ntawm precisely hloov qhov zaus, siv thiab theem ntawm lub laser, muaj peev xwm kho qhov muag tshwj xeeb tuaj yeem kaw cov molecules thiab paub txog kev tswj hwm ntawm cov molecules. Piv txwv li, hauv kev ua si ntawm quantum suav thiab Quantum cov ntaub ntawv siv, nruab nrab-nruab nrab lub sijhawm muaj peev xwm siv tau cov molecules txias kom ua tiav cov haujlwm ntawm Quantum khoom.
Cov txiaj ntsig zoo: Nws muab cov kev sim siab tshiab rau kev tshawb fawb hauv cov Quantum Physics, tshuaj lom neeg, ntau yam kev sim thiab lwm yam.
③ Tiam ntawm Attosecond Pulses
Lub hauv paus ntsiab lus: los ntawm nonlinear optical cov txheej txheem xws li he-infrared pulsed pulse tau tsim cov qib attosecond theem (10⁻¹⁸ vib nas this). Thaum nruab nrab lub lasers sib cuam tshuam nrog cov atoms lossis lwg me me, cov kev sib raug zoo ua kom muaj kev sib raug zoo. Cov nquag ntawm cov kev sib raug zoo no yog nyob rau hauv huab ultraviolet (XUV) band, thiab lawv cov pulse dav dav hlau tuaj yeem ncav cuag cov attosecond qib.
Cov txiaj ntsig zoo: Nws muab kev daws teeb meem siab heev rau kev kawm txog cov txheej txheem ultrasfast xws li hluav taws xob kev ua kom paub meej txog kev paub ntawm lub ntiaj teb ntawm qhov teeb meem.

Hauv cov ntsiab lus, nruab nrab-infrared pulsed fiber ntau lasers tau qhia dav thiab roj kev ua haujlwm, kev tiv thaiv kev lag luam thiab kev nyab xeeb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb fawb, thiab kev tshawb nrhiav hauv tebchaws Nrog kev txhim kho txuas ntxiv thiab txhim kho thev naus laus zis, nws ntseeg tau tias Mid-infrared pulsed pulsed muaj cov teb ntau thiab coj kev noj qab haus huv ntau rau tib neeg.

Cov ntaub ntawv tiv toj:

Yog tias koj muaj tswv yim, xav tham nrog peb. Tsis hais qhov twg peb cov neeg yuav khoom yog thiab peb yuav tsum ua raws li peb lub hom phiaj los muab peb cov neeg siv khoom kom muaj txiaj ntsig zoo, tus nqi zoo tshaj plaws, thiab kev pabcuam zoo tshaj plaws.