Iindaba - Kutheni sisebenzisa i-Nd: i-crystal ye-YAG njengendlela yokuzuza kwi-laser ye-DPSS?

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Yintoni iLaser Gain Medium?

I-laser gain medium yimathiriyeli ekhulisa ukukhanya ngokukhutshwa okuvuselelweyo. Xa iiathom zomendi okanye iiathom zichulumancile ukuya kumanqanaba aphezulu amandla, zinokukhupha iifotoni zobude obuthile xa zibuyela kwindawo esezantsi yamandla. Le nkqubo ikhulisa ukukhanya okudlula phakathi, okusisiseko ekusebenzeni kwelaser.

[Iblogi eNxulumeneyo:Amacandelo aphambili e-laser]

Yeyiphi iNgxowa-mali eqhelekileyo?

I-medium gain ingahluka, kuqukaiigesi, ulwelo (iidayi), izinto eziqinileyo(iikristale okanye iiglasi ezidityaniswe ne-iron-earth or transition metal ion), kunye ne-semiconductors.Iilaser eziqinileyo, umzekelo, bavame ukusebenzisa iikristale ezifana ne-Nd: YAG (i-Neodymium-doped Yttrium Aluminium Garnet) okanye iiglasi ezifakwe kwizinto ezinqabileyo zomhlaba. Iilaser zedayi zisebenzisa idayi yendalo enyityilisiweyo kwizinyibilikisi, kwaye iilaser zegesi zisebenzisa iigesi okanye imixube yerhasi.

Iinduku zeLaser (ukusuka ekhohlo ukuya ekunene): URuby, Alexandrite, Er:YAG, Nd:YAG

Umahluko phakathi kwe-Nd (Neodymium), i-Er (Erbium), kunye ne-Yb (Ytterbium) njengeendlela zokuzuza

ngokuyintloko inxulumene nokukhutshwa kwamaza amaza, iindlela zokudlulisa amandla, kunye nokusetyenziswa, ngakumbi kumxholo wemathiriyeli yelaser enedodi.

I-Emission Wavelengths:

- I-Er: I-Erbium ngokuqhelekileyo ikhupha kwi-1.55 µm, ekummandla okhuselekileyo wamehlo kwaye iluncedo kakhulu kwizicelo zonxibelelwano ngenxa yokulahlekelwa kwayo okuphantsi kwimicu ye-optical (Gong et al., 2016).

- Yb: I-Ytterbium ihlala ikhupha malunga ne-1.0 ukuya kwi-1.1 µm, iyenza ilungele uluhlu olubanzi lwezicelo, kubandakanywa iilaser zamandla aphezulu kunye ne-amplifiers. I-Yb ihlala isetyenziswa njengesensitizer ye-Er yokuphucula ukusebenza kakuhle kwezixhobo ze-Er-doped ngokuhambisa amandla ukusuka ku-Yb ukuya ku-Er.

- Nd: Imathiriyeli ye-Neodymium-doped iqhele ukukhupha malunga ne-1.06 µm. I-Nd: YAG, umzekelo, idume ngokusebenza kwayo kwaye isetyenziswa ngokubanzi kwimizi-mveliso kunye ne-laser yezonyango (Y. Chang et al., 2009).

IiNdlela zokuThuthukiswa koMbane:

- I-Er kunye ne-Yb Co-doping: I-co-doping ye-Er kunye ne-Yb kwindawo yokusingatha kunenzuzo ekwandiseni ukukhutshwa kuluhlu lwe-1.5-1.6 µm. I-Yb isebenza njengesilumkisi esisebenzayo se-Er ngokufunxa ukukhanya kwempompo kunye nokuhambisa amandla kwi-Er ion, ekhokelela ekukhutshweni okunyusiweyo kwibhendi yonxibelelwano. Oku kuhanjiswa kwamandla kubalulekile ekusebenzeni kwe-Er-doped fiber amplifiers (EDFA) (DK Vysokikh et al., 2023).

- Nd: Nd ayifuni ngokuqhelekileyo isivanzi njengeYb kwiinkqubo ze-Er-doped. Ukusebenza kakuhle kwe-Nd kuthathwe ekufunxeni kwayo ngokuthe ngqo kokukhanya kwempompo kunye nokukhutshwa okulandelayo, okwenza kube yindlela ethe ngqo nesebenzayo yokufumana i-laser.

Usetyenziso:

-Er:Isetyenziswa ngokuyintloko kunxibelelwano ngefowuni ngenxa yokukhutshwa kwayo kwi-1.55 µm, ehambelana nobuncinci befestile yelahleko ye-silica optical fibers. I-Er-doped gain mediums ibalulekile kwi-optical amplifiers kunye ne-lasers kwiinkqubo zonxibelelwano zefiber optic ezide.

- Yb:Ihlala isetyenziswa kwizicelo zamandla aphezulu ngenxa yobume bayo be-elektroniki obulula obuvumela ukumpompa kwe-diode okusebenzayo kunye nokukhutshwa kwamandla aphezulu. Izixhobo ze-Yb-doped zikwasetyenziselwa ukuphucula ukusebenza kweenkqubo ze-Er-doped.

-Nd: Ilungele uluhlu olubanzi lwezicelo, ukusuka kwi-industrial cutting kunye ne-welding ukuya kwii-laser zonyango. I-Laser ye-YAG ixabiseke ngokukodwa ekusebenzeni kwayo, amandla, kunye nokuguquguquka.

Kutheni sikhethe i-Nd: YAG njengendawo yokuzuza kwi-laser ye-DPSS

I-laser ye-DPSS luhlobo lwe-laser esebenzisa i-solid-state gain medium (njenge-Nd: YAG) ephonswe yi-semiconductor laser diode. Le teknoloji ivumela i-compact, i-laser esebenzayo ekwazi ukuvelisa imiqadi ephezulu kwi-spectrum ebonakalayo-to-infrared. Ngenqaku elineenkcukacha, ungacinga ngokukhangela koovimba beenkcukacha zenzululwazi abathembekileyo okanye abapapashi ukuze ufumane uphononongo olubanzi kubuchwepheshe belaser beDPSS.

[Imveliso eyeleleneyo :I-Diode-pumped solid-state laser]

I-Nd:YAG isoloko isetyenziswa njengendawo yokuzuza kwimodyuli ye-laser ye-semiconductor-pumped laser ngenxa yezizathu ezininzi, njengoko kugxininiswe kwizifundo ezahlukeneyo:

1.Ubuchule obuphezulu kunye noPhumo lwaMandla: Uyilo kunye nokulinganisa kwe-diode side-pumped Imodyuli ye-laser ye-Nd: YAG ibonise ukusebenza kakuhle, kunye ne-diode side-pumped Nd: YAG laser enika ubuninzi bomlinganiselo wamandla we-220 W ngelixa igcina amandla angapheliyo kwi-pulse kwi-wide frequency range. Oku kubonisa ukusebenza okuphezulu kunye nokukwazi ukukhutshwa kwamandla aphezulu e-Nd: YAG lasers xa iphonswa ngama-diode (Lera et al., 2016).
2.Ukuguquguquka kokuSebenza kunye nokuthembeka: I-Nd: I-ceramics ye-YAG ibonakaliswe ukuba isebenze ngokufanelekileyo kwi-wavelengths eyahlukeneyo, kubandakanywa i-wavelengths ekhuselekileyo yamehlo, kunye nokusebenza okuphezulu kwe-optical-to-optical. Oku kubonakalisa i-Nd: i-YAG's versatility kunye nokuthembeka njengento yokuzuza kwizicelo ezahlukeneyo ze-laser (Zhang et al., 2013).
3.Ubomi obude kunye noMgangatho weBeam: Uphando ngobuchule obuphezulu, i-diode-pumped, Nd:YAG laser igxininise ixesha elide kunye nokusebenza okungaguqukiyo, ebonisa ukufaneleka kwe-Nd:YAG kwizicelo ezifuna imithombo yelaser ehlala ixesha elide kunye nethembekileyo. Uphononongo luchaze ukusebenza okwandisiweyo ngaphezu kwe-4.8 x 10 ^ 9 izibhamu ngaphandle komonakalo obonakalayo, ukugcina umgangatho obalaseleyo we-beam (Coyle et al., 2004).
4.Ukusebenza ngokuBanzi ngokuQolekileyo kwe-Wave:Uphononongo lubonise ukusebenza ngokugqibeleleyo kwamaza aqhubekayo (CW) kwe-lases ye-Nd:YAG, iqaqambisa ukusebenza kwazo njengendawo yokuzuza kwiinkqubo ze-laser ezipump diode. Oku kubandakanya ukufezekisa ukuphumelela kokuguqulwa kwe-optical ephezulu kunye nokuphumelela kwe-slope, ukuqhubela phambili ubungqina bokufaneleka kwe-Nd: YAG yokusetyenziswa kwe-laser ephezulu (Zhu et al., 2013).

Ukudityaniswa kokusebenza okuphezulu, ukuphuma kwamandla, ukuguquguquka kokusebenza, ukuthembeka, ixesha elide, kunye nomgangatho obalaseleyo we-beam kwenza i-Nd: YAG ibe yinzuzo ekhethiweyo ephakathi kwiimodyuli ze-laser ze-semiconductor-pumped kuluhlu olubanzi lwezicelo.

Isalathiso

Chang, Y., Su, K., Chang, H., & Chen, Y. (2009). I-Compact esebenzayo ye-Q-itshintshe i-laser ekhuselekileyo yamehlo kwi-1525 nm ene-double-end diffusion-bonded Nd: YVO4 crystal njenge-self-Raman medium. Optics Express, 17 (6), 4330-4335.

Gong, G., Chen, Y., Lin, Y., Huang, J., Gong, X., Luo, Z., & Huang, Y. (2016). Ukukhula kunye neempawu ze-spectroscopic ze-Er:Yb:KGd(PO3)_4 ikristale njengento ethembisayo ye-155 µm laser gain medium. I-Optical Materials Express, i-6, i-3518-3526.

Vysokikh, DK, Bazakutsa, A., Dorofeenko, AV, & Butov, O. (2023). Imodeli esekwe kuvavanyo lwe-Er/Yb ifumana indawo ephakathi kwifiber amplifiers kunye nelases. Ijenali yeOptical Society of America B.

Lera, R., Valle-Brozas, F., Torres-Peiró, S., Ruiz-de-la-Cruz, A., Galán, M., Bellido, P., Seimetz, M., Benlloch, J., & Roso, L. (2016). Ukulinganisa iprofayili yokuzuza kunye nokusebenza kwe-diode ecaleni-pump QCW Nd: YAG laser. I-Applied Optics, i-55 (33), i-9573-9576.

Zhang, H., Chen, X., Wang, Q., Zhang, X., Chang, J., Gao, L., Shen, H., Cong, Z., Liu, Z., Tao, X., & Li, P. (2013). Ukusebenza okuphezulu kwe-Nd: YAG i-ceramic eye-laser ekhuselekileyo esebenza kwi-1442.8 nm. Iileta ze-Optics, 38 (16), 3075-3077.

Coyle, DB, Kay, R., Stysley, P., & Poulios, D. (2004). Esebenzayo, ethembekileyo, ubomi obude, i-diode-pumped Nd:YAG laser kwi-altimetry yendalo esekwe kwizityalo. I-Applied Optics, i-43 (27), i-5236-5242.

Zhu, HY, Xu, CW, Zhang, J., Tang, D., Luo, D., & Duan, Y. (2013). Isebenza kakuhle kakhulu i-wave-wave Nd: YAG iilaser zeceramic kwi-946 nm. Iileta zeFiziksi zeLaser, ezili-10.

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