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Lasers, ibwe rekona remazuva ano tekinoroji, inonakidza sezvo yakaoma. Pamwoyo pavo pane mutsindo wezvikamu zvinoshanda pamwe chete kuti zvibudise chiedza chakabatana, chakakwidziridzwa. Iri bhurogi rinotarisa mukati mekuoma kwezvikamu izvi, zvinotsigirwa nemisimboti yesainzi uye equation, kupa kunzwisisa kwakadzama kwelaser tekinoroji.
Yepamberi Insights muLaser System Zvikamu: Maonero ehunyanzvi kune Nyanzvi
| Chikamu | Basa | Mienzaniso |
| Gain Medium | Iyo yepakati yekuwana ndiyo zvinhu mune laser inoshandiswa kukudza mwenje. Inofambisa kukwidziridzwa kwechiedza kuburikidza nemaitiro ehuwandu hwevanhu uye nekusimudzirwa kwekubuda. Sarudzo yekuwana yepakati inosarudza iyo laser's radiation maitiro. | Solid-State Lasers: semuenzaniso, Nd: YAG (Neodymium-doped Yttrium Aluminium Garnet), inoshandiswa mune zvekurapa uye zveindasitiri zvekushandisa.Gasi Lasers: semuenzaniso, CO2 lasers, anoshandiswa kucheka uye welding.Semiconductor Lasers:semuenzaniso, laser diodes, inoshandiswa mufiber optics kutaurirana uye laser pointers. |
| Kupomba Source | Iyo yekupomba sosi inopa simba kune iyo yepakati yekuwana yekuwana huwandu hwevanhu inversion (iyo sosi yesimba rehuwandu inversion), ichigonesa laser kushanda. | Optical Pumping: Kushandisa mwenje wakasimba senge flashlamps kupomba solid-state lasers.Kupomba Kwemagetsi: Inofadza gasi mune gasi lasers kuburikidza nemagetsi ikozvino.Semiconductor Pumping: Kushandisa laser diodes kupomba iyo yakasimba-state laser yepakati. |
| Optical Cavity | Iyo optical cavity, ine magirazi maviri, inoratidzira mwenje kuti uwedzere kureba kwenzira yechiedza mune yekuwana medium, nekudaro inosimudzira mwenje. Inopa maitiro emhinduro yelaser amplification, kusarudza iyo spectral uye spatial maitiro echiedza. | Planar-Planar Cavity: Inoshandiswa mukutsvagisa marabhoritari, chimiro chakareruka.Planar-Concave Cavity: Yakajairika mumaindasitiri lasers, inopa yakakwirira-mhando matanda. Ring Cavity: Inoshandiswa mune chaiwo magadzirirwo emhete lasers, senge ring gasi lasers. |
Iyo Gain Medium: A Nexus yeQuantum Mechanics uye Optical Engineering
Quantum Dynamics mune iyo Gain Medium
Iyo yepakati yekuwana ndipo panoitika iyo yakakosha maitiro ekukwidziridzwa kwechiedza, chiitiko chakadzika midzi mu quantum mechanics. Kudyidzana pakati pesimba renyika uye zvimedu mukati mepakati kunotongwa nemisimboti yekukurudzira kuburitsa uye kushanduka kwevanhu. Hukama hwakakosha pakati pesimba rechiedza (I), simba rekutanga (I0), chinjikira-chikamu (σ21), uye nhamba dzezvikamu pamatanho maviri esimba (N2 neN1) inotsanangurwa neiyo equation I = I0e ^ (σ21(N2-N1)L). Kuwana inversion yehuwandu, uko N2> N1, yakakosha pakusimudzira uye ibwe rekona relaser physics[1].
Three-Level vs. Four-Level Systems
Mukuita laser dhizaini, matatu-nhanho uye mana-nhanho masisitimu anowanzo shandiswa. Matatu-nhanho masisitimu, nepo ari nyore, anoda simba rakawanda kuti awane inversion yehuwandu sezvo yakaderera laser level iri pasi pasi. Mane-level masisitimu, kune rumwe rutivi, anopa nzira inoshanda kune huwandu hwevanhu nekuda kwekukurumidza kusiri kweradiation kuora kubva padanho repamusoro resimba, zvichiita kuti zviwande mumashandisirwo emazuva ano e laser[2].
Is Erbium-doped girazia gain medium?
Ehe, erbium-doped girazi imhando yekuwana svikiro inoshandiswa mumalaser system. Muchirevo chechinyorwa chino, "doping" inoreva maitiro ekuwedzera imwe huwandu hweerbium ion (Er³⁺) kugirazi. Erbium chinhu chisingawanzwisike chepasi icho, kana chaiswa mugirazi rinogamuchira, chinokwanisa kukudza mwenje kuburikidza nekusimudzirwa kubuda, chiitiko chakakosha mukushanda kwelaser.
Erbium-doped girazi inonyanya kukosha pakushandiswa kwayo mufiber lasers uye fiber amplifiers, kunyanya muindasitiri yekufonera. Yakanyatsokodzera maapplications aya nekuti inokwirisa chiedza pawavelengths yakatenderedza 1550 nm, inova yakakosha wavelength yeoptical fiber communications nekuda kwekurasikirwa kwayo kwakadzikira musirica fibers.
Theerbiummaion anotora chiedza chepombi (kazhinji kubva kune alaser diode) uye vari kufara kune yakakwirira simba nyika. Pavanodzokera kune yakaderera simba mamiriro, ivo vanoburitsa mafotoni pa lasing wavelength, zvichibatsira kune iyo laser process. Izvi zvinoita kuti erbium-doped girazi ive inoshanda uye yakashandiswa zvakanyanya kuwana yepakati mune akasiyana laser uye amplifier dhizaini.
Related Blogs: Nhau - Erbium-Doped Girazi: Sainzi & Zvishandiso
Pumping Mechanisms: The Driving Force Kuseri kweLasers
Nzira Dzakasiyana-siyana dzeKuwana Population Inversion
Sarudzo yekupomba michina yakakosha mukugadzirwa kwelaser, ichipesvedzera zvese kubva pakuita basa kusvika pakubuda wavelength. Optical kupomba, uchishandisa kunze kwechiedza masosi senge flashlamps kana mamwe lasers, yakajairika mune yakasimba-nyika uye dhayi lasers. Nzira dzekuburitsa magetsi dzinowanzo shandiswa mumagasi lasers, nepo semiconductor lasers anowanzo shandisa jekiseni remagetsi. Kushanda kwemapombi aya, kunyanya mu diode-pumped solid-state lasers, kwave kuri kutarisisa kwetsvakiridzo ichangoburwa, ichipa hunyanzvi hwepamusoro uye compactness[3].
Tekinoroji Kufunga muPumping Efficiency
Kubudirira kwemaitiro ekupomba chinhu chakakosha chekugadzirwa kwelaser, kukanganisa kushanda kwese uye kukodzera kwekushandisa. Mune solid-state lasers, sarudzo pakati pemwenje uye laser diode sepombi sosi inogona kukanganisa zvakanyanya kushanda kweiyo system, kudziya kwekupisa, uye danda remhando. Kuvandudzwa kwesimba repamusoro-soro, repamusoro-soro relaser diode rakashandura DPSS laser masisitimu, zvichiita kuti dhizaini yakawandisa uye inoshanda[4].
Iyo Optical Cavity: Injiniya iyo Laser Beam
Cavity Dhizaini: A Bancing Act yeFizikisi uye Injiniya
Iyo yemaziso mhango, kana resonator, haingori chinhu chinongoitika asi mutori wechikamu anoshanda mukuumba danda relaser. Dhizaini yegomba, kusanganisira curvature uye kurongeka kwemagirazi, inoita basa rakakosha pakuona kugadzikana, modhi chimiro, uye kubuda kwelaser. Iyo mhango inofanirwa kugadzirwa kuti ikwidziridze kuwana kwemaziso uku ichideredza kurasikirwa, dambudziko rinosanganisa optical engineering ne wave optics.5.
Oscillation Mamiriro uye Mode Sarudzo
Kuti laser oscillation iitike, kuwana kwakapihwa nepakati kunofanirwa kudarika kurasikirwa mukati megomba. Mamiriro ezvinhu aya, pamwe chete nezvinodiwa zvekubatana kwemafungu epamusoro, anoraira kuti mamwe chete marefu mamodhi anotsigirwa. Iyo mode spacing uye iyo yakazara modhi chimiro inokanganiswa nehurefu hwemuviri wegomba uye refractive index yekuwana medium[6].
Mhedziso
Dhizaini uye mashandiro emalaser masisitimu anosanganisira yakafara spectrum yefizikisi uye mainjiniya nheyo. Kubva ku quantum mechanics inotonga iyo yepakati kusvika kune yakaomesesa engineering ye optical cavity, chimwe nechimwe chikamu che laser system chinoita basa rakakosha mukushanda kwayo kwese. Ichi chinyorwa chapa tarisiro yenyika yakaoma yelaser tekinoroji, ichipa nzwisiso inoenderana nekunzwisisa kwepamusoro kwevaporofesa uye optical mainjiniya mumunda.
References
- 1. Siegman, AE (1986). Lasers. Yunivhesiti Sayenzi Mabhuku.
- 2. Svelto, O. (2010). Nheyo dzeLasers. Springer.
- 3. Koechner, W. (2006). Solid-State Laser Injiniya. Springer.
- 4. Piper, JA, & Mildren, RP (2014). Diode Pumped Solid State Lasers. MuHandbook of Laser Technology uye Applications (Vol. III). CRC Press.
- 5. Milonni, PW, & Eberly, JH (2010). Laser Fizikisi. Wiley.
- 6. Silfvast, WT (2004). Laser Basics. Cambridge University Press.
Nguva yekutumira: Nov-27-2023