Honour Optics hlob muag cov lag luam wholesale YAG laser siv cov technique Czochralski, thiab peb yuav muab Nd, Er, Cr, Tm, Yb, Ho, thiab siab nce YAG laser muaju.
YAG (Yttrium aluminium garnet los yog Y3Al5O12), zoo ib yam li garnet thiab sapphire, tsis muaj kev siv ua lub laser medium thaum ntshiab. Txawm li cas los xij, tom qab yog doped nrog ib tug tsim nyog ion, kev cai siab purity YAG laser siv lead ua los siv feem ntau yog siv lub pob khoom siv hauv ntau yam khoom-xeev lasers. Tsis tshee lub ntiaj teb xws li Nd (neodymium) thiab Er (erbium) tau doped rau YAG li laser ion active, yielding Nd: YAG thiab Er: YAG lasers, feem.
1. Muaj peev xwm siab
2. Pes tsawg
3. Kev ua haujlwm siab
4. Tsawg poob ntawm 1.06um
5. Cov thermal conductivity thiab thermal shock yam ntxwv
6. Lub zog muaj zog
7. Siab kho qhov muag zoo
8. Cov khoom muaj txiaj ntsim pub rau ntau hom kev lag luam (CW, pulsed, Q-switched, hom kaw thiab kab noj.)
Undoped YAG Crystal yog ib qho khoom siv rau UV-IR optical windows, tshwj xeeb tshaj yog rau cov qib siab thiab siab zog cov ntawv siv. Cov neeg kho tshuab thiab chemical stability yog piv rau sapphire siv lead ua, tiam sis high precision loj loj YAG laser siv lead ua yog tshwj xeeb nrog cov non-birefringence thiab muaj optical homogeneity optical thiab deg zoo.
Nd: YAG Crystal tau tsim nyob rau hauv lub xyoo 1960, Nd: YAG tau thiab tseem yog siv ntau txoj hlua siv laser rau solid-state siv lead ua cov khoom. Qhov tsis zoo ntawm laser yog qhov zoo zoo ntawm qhov ua tau zoo thiab qaug zog ntawm nws txoj kev sib tw. Nd: qhov nce siab ua kom cov YAG laser siv tau los siv rau txhua hom khoom-xeev lasers systems-frequency-doubled nruam, siab zog Q Qaws, thiab lwm yam.
Cr: YAG Crystal yog ib qho siv lead ua zoo heev rau Qib siv Q Qis hloov ntawm kab Q-pauv los yog lub teeb-pumped Nd: YAG, Nd: YLF, Nd: YVO4 los yog lwm cov Nd thiab Yb doped lasers ntawm lub qhov ntev ntawm 0.8 rau 1.2 μm.
Yb: YAG Crystal muaj ntau dua kev nqus dej kom tsis txhob muaj kev txwv kev tswj kev ntsuas cua rau diode lasers, ntev tshaj laser neej sim neej, peb mus rau plaub zaug thermal loading ib chav tsev fais fab. kev siab zoo purity YAG laser siv lead ua ntawm 1030nm yog tus zoo hloov rau tus Nd: YAG siv lead ua ntawm 1064nm thiab nws cov thib ob harmonic ntawm 515nm yuav hloov Ar-ion laser, uas emits ntawm 514nm
Er: zoo Suav YAG laser siv lead ua yog ib qho zoo heev laser siv lead ua uas lases ntawm 2940 nm. Nws muaj ntau daim ntawv sau npe hauv ntawv kho mob.
Nd: YAG raws li lub tswv yim tshwj xeeb tshaj yog rau cov muaj hwj chim loj lasers thiab Q hloov lo ntsiab muag emitting ntawm 1064nm. Tab sis lwm yam kev hloov nyob ze 940, 1120, 1320, thiab 1440 nm kuj siv.
Nd3 +: YAG yog qhov nruab nrab ntawm plaub theem nruab nrab (tshwj tsis yog 946nm), muab kev lag luam ntau heev rau kev sim siab thiab kev siv twj tso kua mis. Qhov nce bandwidth yog tus me me, tab sis qhov no tso cai rau kev kub siab ua haujlwm thiab yog li qis qis twj tso kua mis.
| Chemical Formula | Nd: Y3A15O12 |
| Crystal Structure | Cubic Garnet |
| Lattice Constants | 12.01Å |
| Concentration | ~ 1.2 x 1020 cm-3 |
| Melting Point | 1970°C (2240K) |
| Density | 4.56 g/cm3 |
| Mohs Hardness | 8.5 |
| Refractive Index | 1.82 |
| Thermal Expansion Coefficient | 7.8 x 10-6 /K [111], 0 - 250 °C |
| Thermal Conductivity | 14 W/m /K @20 °C, 10.5 W /m /K @100 °C. |
Feem ntau Nd: YAG emission wavelength yog 1064 nm. Pib nrog qhov pauv ntawd, qhov tawm ntawm 532, 355 thiab 266 nm tuaj yeem tsim los ntawm kev siv zaus ntau zaus, zaus tripling, thiab quadrupling zaus, raws li. Lwm cov pa roj carbon emissions yog 946, 1123, 1319, 1338, 1415 thiab 1444 nm.
Nd: YAG feem ntau yog siv rau hauv daim ntawv monocrystalline, cov ntaub ntawv nrog txoj kev loj hlob ntawm Czochralski, tab sis tseem muaj cov kab xev (polycrystalline) muaj qhov loj loj YAG laser siv tau zoo nyob rau hauv high quality thiab loj. Rau ob qho tib si monocrystalline thiab ceramic Nd: YAG, nqus, thiab tawg hlo li ntawm qhov ntev ntawm lub laser siv lead ua yog feem ntau negligible, Txawm tias tseem muaj ntev muaju.
| Lasing Wavelength | 1064 nm |
| Stimulated Emission Cross Section | 2.8x10-19 cm-2 |
| Relaxation Time of Terminal Lasing Level | 30 ns |
| Radiative Lifetime | 550 ms |
| Spontaneous Fluorescence | 230 ms |
| Loss Coefficient | 0.003 cm-1 @ 1064 nm |
| Effective Emission Cross Section | 2.8 x 10-19 cm2 |
| Pump Wavelength | 807.5 nm |
| The absorption band at the pump wavelength | 1 nm |
| Linewidth | 0.6 nm |
| Polarized Emission | Unpolarized |
| Thermal Birefringence | High |
Tus naj npawb Nd (neodymium) doping qib yog 1 at. %. Nd: YAG rods ntawm qib dopant no yog ib qho kev xaiv zoo heev rau cov mem tes thiab multimode CW laser systems los muab cov zis muaj peev xwm ua ke nrog cov qhwv ntsej pleev tsis zoo thiab cov nplua pleev zoo zoo Doping ntau yuav pab tau, vim hais tias lawv txo lub twj tso kua mis ntev, tab sis kev siab dhau los ua rau kev quenching ntawm lub neej qaum-lub neej. Tsis tas li ntawd, lub zog ntawm lub hwjchim uas muaj dissipated yuav ua rau siab dhau nyob rau hauv high-power lasers. Nco ntsoov tias qhov doding neodymium doping tsis tas yuav tsum muaj sib npaug hauv txhua qhov; muaj cov xim laser sib txuam nrog cov doped thiab cov tsis tshaw hlau, los yog nrog cov khoom sib txawv doping ntom nti.
Nd doping concentration ntawm 0.1 mus rau 2.5mol%
Ntsig ntawm 1 hli mus rau 50mm, ntev los ntawm 0.3mm txog 220mm
Kev Taw Qhia Kev Taw Qhia: 5 arc feeb
Kev Kab Mob Siab: +/- 0.05mm
Siab ntev kam: +/- 0.1mm
Dopant Concentration Tolerance ------------------------ 0.1%
Kev Tshaj Tawm --------------------------------- - < 10 arc vib nas this
Perpendicularity --------------------------- < 5 arc feeb
Chamfer --------------------------------- ---- 0.1 hli @ 45 °
Cov Lus Aperture ----------------------------- 95%
Nto Zoo ---------------------------- 10/5
Nto Caij Ntaus --------------------------- λ /10 @ 633nm
Wavefront Distortion ------------------------- < λ /10 @ 633nm
Zoo Suav YAG laser muaju yog qhov feem ntau siv los nce qhov nruab nrab uas yuav siv tau rau hauv CW, mem tes thiab qee qhov lwm yam khoom-state lasers. Nws muaj ntau yam kev ua haujlwm xws li hloov, hom kaw, qev zog Q, kab noj plaw resonant thiab lwm tus.
Nd: YAG tuaj yeem tsim xiav laser nrog cov zaus-doubling ntawm 946nm
Nd: YAG tuaj yeem ua haujlwm nyob rau hauv lub hwj chim siab laser mus txog qib kw
Nd: YAG tuaj yeem ncaj qha mus rau Q-switched nrog Cr4 + YAG
Vim lub cubic symmetry thiab zoo siab, Nd: YAG nws yooj yim rau kev khiav lag luam nrog TEM00 hom
Honour Optics siv txoj kev ntawm Czochralski kom loj hlob muag YAG laser siv lead ua, thiab peb yuav muab Nd, Er, Cr, Tm, Yb, Ho, thiab tsis muaj doped YAG iav ci.
| Doping | Dimension | Coating |
| 1% | f3X50mm | AR/AR@1064nm |
| 1% | f4X40mm | AR/AR@1064nm |
| 1% | f6X60mm | AR/AR@1064nm |
| 1% | f6X80mm | AR/AR@1064nm |
| 1% | f6X100mm | AR/AR@1064nm |
| 1% | f6X120mm | AR/AR@1064nm |
| 1% | f8X120mm | AR/AR@1064nm |
| 1% | f8X135mm | AR/AR@1064nm |