Sau npe rau peb cov social media kom tau txais cov ntawv tshaj tawm sai
Cov lasers, lub hauv paus ntawm thev naus laus zis niaj hnub no, yog qhov txaus nyiam thiab lawv nyuaj. Hauv lawv lub plawv yog ib qho kev sib xyaw ua ke ntawm cov khoom ua haujlwm ua ke los tsim kom muaj lub teeb ci ntsa iab. Cov blog no nkag mus rau hauv qhov nyuaj ntawm cov khoom no, txhawb nqa los ntawm cov ntsiab cai thiab cov qauv kev tshawb fawb, los muab kev nkag siab tob dua ntawm cov thev naus laus zis laser.
Kev Nkag Siab Txog Cov Cheebtsam Laser System: Lub Tswv Yim Kev Txawj Ntse Rau Cov Kws Tshaj Lij
| Cheebtsam | Kev Ua Haujlwm | Piv txwv |
| Tau Txais Nruab Nrab | Qhov nruab nrab nce yog cov khoom siv hauv lub laser siv rau kev ua kom lub teeb loj dua. Nws pab txhawb kev ua kom lub teeb loj dua los ntawm cov txheej txheem ntawm kev hloov pauv pej xeem thiab kev tso tawm. Kev xaiv ntawm qhov nruab nrab nce txiav txim siab qhov yam ntxwv ntawm lub teeb laser. | Cov Lasers Khoobpiv txwv li, Nd:YAG (Neodymium-doped Yttrium Aluminium Garnet), siv rau hauv kev kho mob thiab kev siv hauv kev lag luam.Cov roj laserspiv txwv li, CO2 lasers, siv rau kev txiav thiab vuam.Cov Tshuab Laser Semiconductor:piv txwv li, laser diodes, siv rau hauv kev sib txuas lus fiber optics thiab laser pointers. |
| Qhov Chaw Twj Tso Kua Mis | Lub qhov chaw twj tso kua mis muab lub zog rau qhov nruab nrab kom ua tiav kev hloov pauv ntawm cov pej xeem (lub zog rau kev hloov pauv ntawm cov pej xeem), ua rau laser ua haujlwm. | Kev Siv Lub Tshuab Pumping OpticalSiv cov teeb pom kev zoo xws li teeb ci ntsa iab los tso cov lasers solid-state.Kev Siv Hluav Taws Xob: Ua kom cov roj hauv cov roj lasers zoo siab los ntawm kev siv hluav taws xob.Kev Siv Semiconductor PumpingSiv cov laser diodes los twj cov khoom siv laser solid-state. |
| Qhov Muag Pom Kev | Lub qhov muag pom kev, muaj ob daim iav, cuam tshuam lub teeb kom ua rau lub teeb ntev dua hauv qhov nruab nrab nce, yog li ua kom lub teeb ci ntsa iab dua. Nws muab lub tshuab rov qab rau kev ua kom lub teeb ci ntsa iab, xaiv cov yam ntxwv ntawm lub teeb thiab qhov chaw. | Planar-Planar Cavity: Siv rau hauv kev tshawb fawb hauv chaw kuaj mob, cov qauv yooj yim.Qhov Rooj Sib Tham Planar-Concave: Feem ntau siv rau hauv cov lasers kev lag luam, muab cov kab teeb zoo. Qhov Rooj NplhaibSiv rau hauv cov qauv tsim tshwj xeeb ntawm cov nplhaib lasers, zoo li cov nplhaib roj lasers. |
Qhov Nruab Nrab: Ib qho Nexus ntawm Quantum Mechanics thiab Optical Engineering
Quantum Dynamics hauv Gain Medium
Qhov nruab nrab nce yog qhov uas cov txheej txheem tseem ceeb ntawm kev ua kom lub teeb loj dua tshwm sim, ib qho xwm txheej uas muaj keeb kwm tob hauv quantum mechanics. Kev sib cuam tshuam ntawm lub zog thiab cov khoom me me hauv nruab nrab yog tswj hwm los ntawm cov ntsiab cai ntawm kev tso tawm thiab kev hloov pauv ntawm cov pej xeem. Kev sib raug zoo tseem ceeb ntawm lub zog ntawm lub teeb (I), qhov pib muaj zog (I0), qhov kev hloov pauv hla (σ21), thiab cov lej ntawm cov khoom me me ntawm ob qib zog (N2 thiab N1) yog piav qhia los ntawm kab zauv I = I0e^(σ21(N2-N1)L). Kev ua tiav kev hloov pauv ntawm cov pej xeem, qhov twg N2 > N1, yog qhov tseem ceeb rau kev ua kom loj dua thiab yog lub hauv paus ntawm laser physics[1].
Cov Txheej Txheem Peb-Theem vs. Plaub-Theem
Hauv kev tsim laser uas siv tau tiag tiag, cov kab ke peb theem thiab plaub theem feem ntau siv. Cov kab ke peb theem, thaum yooj yim dua, xav tau lub zog ntau dua los ua kom cov pej xeem tig rov qab vim tias qib laser qis dua yog lub xeev hauv av. Cov kab ke plaub theem, ntawm qhov tod tes, muab txoj hauv kev zoo dua rau kev tig rov qab ntawm cov pej xeem vim yog qhov kev puas tsuaj sai sai uas tsis yog radiative los ntawm qib zog siab dua, ua rau lawv muaj ntau dua hauv cov ntawv thov laser niaj hnub no [2].
Is Erbium-doped iavib qho nruab nrab nce?
Yog lawm, iav uas muaj erbium doped yeej yog ib hom khoom siv uas siv rau hauv cov tshuab laser. Hauv qhov no, "doping" txhais tau hais tias yog cov txheej txheem ntxiv qee yam erbium ions (Er³⁺) rau hauv iav. Erbium yog ib yam khoom tsis tshua muaj uas, thaum muab tso rau hauv lub khob iav, tuaj yeem ua kom lub teeb ci ntsa iab los ntawm kev tso pa tawm, uas yog ib qho txheej txheem tseem ceeb hauv kev ua haujlwm laser.
Cov iav uas muaj Erbium doped yog qhov tshwj xeeb tshaj yog rau nws siv rau hauv cov lasers fiber thiab cov amplifiers fiber, tshwj xeeb tshaj yog hauv kev lag luam kev sib txuas lus. Nws zoo rau cov ntawv thov no vim nws ua kom lub teeb ci ntsa iab ntawm cov wavelengths nyob ib ncig ntawm 1550 nm, uas yog qhov tseem ceeb wavelength rau kev sib txuas lus fiber ntau vim nws qhov kev poob qis hauv cov fibers silica txheem.
Luberbiumions nqus lub teeb twj tso kua mis (feem ntau los ntawm ib qholaser diode) thiab zoo siab rau cov xeev muaj zog siab dua. Thaum lawv rov qab mus rau lub xeev muaj zog qis dua, lawv tso tawm cov photons ntawm qhov ntev ntawm lub laser, pab txhawb rau cov txheej txheem laser. Qhov no ua rau iav erbium-doped ua qhov nruab nrab zoo thiab siv dav hauv ntau yam qauv laser thiab amplifier.
Cov Blogs Sib Xws: Xov Xwm - Erbium-Doped Iav: Kev Tshawb Fawb & Kev Siv
Cov Txheej Txheem Twj Tso Kua Mis: Lub Zog Tsav Tsheb Tom Qab Lasers
Ntau Txoj Kev Sib Txawv Los Ua Kom Cov Pej Xeem Hloov Pauv
Qhov kev xaiv ntawm lub tshuab twj tso kua mis yog qhov tseem ceeb hauv kev tsim laser, cuam tshuam txhua yam los ntawm kev ua haujlwm zoo mus rau qhov tso zis wavelength. Lub twj tso kua mis optical, siv cov chaw teeb pom kev zoo sab nraud xws li flashlamps lossis lwm yam lasers, yog ib txwm muaj nyob rau hauv cov khoom siv khov kho thiab cov xim zas lasers. Cov txheej txheem tso tawm hluav taws xob feem ntau siv rau hauv cov roj lasers, thaum cov semiconductor lasers feem ntau siv electron txhaj tshuaj. Qhov ua tau zoo ntawm cov tshuab twj tso kua mis no, tshwj xeeb tshaj yog nyob rau hauv diode-pumped solid-state lasers, tau yog qhov tseem ceeb ntawm kev tshawb fawb tsis ntev los no, muab kev ua haujlwm zoo dua thiab compactness [3].
Kev Xav Txog Kev Siv Tshuab Hauv Kev Ua Haujlwm Zoo ntawm Pumping
Qhov ua tau zoo ntawm cov txheej txheem twj tso kua mis yog ib qho tseem ceeb ntawm kev tsim laser, cuam tshuam rau kev ua tau zoo tag nrho thiab kev siv tau zoo. Hauv cov lasers khov kho, qhov kev xaiv ntawm flashlamps thiab laser diodes ua lub twj tso kua mis tuaj yeem cuam tshuam rau qhov ua tau zoo ntawm lub kaw lus, thermal load, thiab beam zoo. Kev txhim kho ntawm cov laser diodes muaj zog, ua haujlwm tau zoo tau hloov pauv DPSS laser systems, ua rau muaj kev tsim qauv me me thiab ua haujlwm tau zoo dua [4].
Lub Qhov Muag Pom Kev: Kev Tsim Kho Lub Teeb Laser
Tsim Qhov Cavity: Ib Txoj Cai Sib Npaug ntawm Physics thiab Engineering
Lub qhov muag pom, lossis resonator, tsis yog tsuas yog ib qho khoom passive tab sis yog ib tus neeg koom nrog hauv kev tsim lub teeb laser. Kev tsim ntawm lub qhov muag pom, suav nrog qhov nkhaus thiab kev sib dhos ntawm cov iav, ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab qhov ruaj khov, hom qauv, thiab cov zis ntawm lub laser. Lub qhov muag pom yuav tsum tau tsim los txhim kho qhov nce ntawm lub teeb thaum txo qis kev poob, qhov kev sib tw uas sib xyaw ua ke kev tsim kho qhov muag nrog cov teeb pom kev zoo nthwv dej.5.
Cov Kev Mob Oscillation thiab Kev Xaiv Hom
Rau qhov laser oscillation kom tshwm sim, qhov nce uas muab los ntawm qhov nruab nrab yuav tsum tshaj qhov poob hauv qhov cavity. Qhov xwm txheej no, ua ke nrog qhov yuav tsum tau ua rau coherent wave superposition, dictates tias tsuas yog qee hom longitudinal hom txhawb nqa. Qhov chaw sib nrug hom thiab tag nrho cov qauv hom raug cuam tshuam los ntawm qhov cavity lub cev ntev thiab qhov refractive index ntawm qhov nce nruab nrab [6].
Xaus lus
Kev tsim thiab kev ua haujlwm ntawm cov tshuab laser suav nrog ntau yam ntawm cov ntsiab cai ntawm physics thiab engineering. Txij li ntawm quantum mechanics tswj hwm qhov nruab nrab mus rau qhov kev tsim kho ntawm lub qhov muag pom kev, txhua qhov ntawm lub tshuab laser ua lub luag haujlwm tseem ceeb hauv nws txoj haujlwm tag nrho. Tsab xov xwm no tau muab ib qho kev nkag siab rau hauv lub ntiaj teb nyuaj ntawm laser technology, muab cov kev nkag siab uas cuam tshuam nrog kev nkag siab siab ntawm cov xibfwb thiab cov kws kho qhov muag hauv daim teb.
Cov ntaub ntawv siv los ua piv txwv
- 1. Siegman, AE (1986). Lasers. Cov phau ntawv University Science.
- 2. Svelto, O. (2010). Cov Ntsiab Cai ntawm Lasers. Springer.
- 3. Koechner, W. (2006). Kev Tsim Kho Laser Solid-State. Springer.
- 4. Piper, JA, & Mildren, RP (2014). Diode Pumped Solid State Lasers. Hauv Phau Ntawv Qhia Txog Laser Technology thiab Applications (Vol. III). CRC Xovxwm.
- 5. Milonni, PW, & Eberly, JH (2010). Laser Physics. Wiley.
- 6. Silfvast, WT (2004). Cov Ntsiab Lus Tseem Ceeb ntawm Laser. Cambridge University Press.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-27-2023