Akụkọ - Gịnị kpatara anyị ji eji Nd: YAG kristal dị ka ihe na-enweta na laser DPSS?

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Kedu ihe bụ Ọkara Nweta Laser?

Akara uru nke laser bụ ihe na-eme ka ìhè dịkwuo elu site na nkupụta. Mgbe atom ma ọ bụ ụmụ irighiri ihe nke na-ajụ na-enwe obi ụtọ ruo ọkwa ume dị elu, ha nwere ike na-ebupụta foto nke otu ogologo ogologo ogologo mgbe ha na-alaghachi na steeti ike dị ala. Usoro a na-eme ka ìhè na-agafe na ọkara, nke bụ isi maka ọrụ laser.

[Blọọgụ metụtara ya:Isi ihe nke laser]

Kedu ihe bụ Ọkara uru Na-emekarị?

Usoro uru nwere ike ịdị iche iche, gụnyeregas, mmiri mmiri (akwa akwa), ihe siri ike(kristal ma ọ bụ ugogbe anya nke nwere obere ụwa ma ọ bụ ion mgbanwe mgbanwe), na semiconductor.Laser steeti siri ikeDịka ọmụmaatụ, na-ejikarị kristal dị ka Nd: YAG (Neodymium-doped Yttrium Aluminum Garnet) ma ọ bụ ugogbe anya nke nwere ihe ndị na-adịghị ahụkebe. Laser e ji esiji ákwà na-eji ihe agbaze organic agbaze na ihe mgbaze, na gas lasers na-eji gas ma ọ bụ gas ngwakọta.

Ogwe laser (site n'aka ekpe gaa n'aka nri): Ruby, Alexandrite, Er:YAG, Nd:YAG

Ọdịiche dị n'etiti Nd (Neodymium), Er (Erbium), na Yb (Ytterbium) dị ka ndị na-enye ohere.

Nke bụ isi na-emetụta ogologo ikuku ha, usoro mbufe ume, na ngwa, ọkachasị n'ihe gbasara ihe eji eme laser doped.

Ogologo ikuku ikuku:

- Er: Erbium na-apụtakarị na 1.55 µm, nke dị na mpaghara nchekwa anya na nke bara uru maka ngwa nkwukọrịta n'ihi obere mfu ya na eriri anya (Gong et al., 2016).

- Yb: Ytterbium na-ebukarị ihe dị ka 1.0 ruo 1.1 µm, na-eme ka ọ dabara maka ngwa dịgasị iche iche, gụnyere lasers na amplifiers dị elu. A na-ejikarị Yb dị ka ihe nhụsianya maka Er iji kwalite arụmọrụ nke ngwaọrụ Er-doped site na ịnyefe ike site na Yb gaa Er.

- Nd: Ihe ndị Neodymium-doped na-ebupụtakarị ihe dịka 1.06 µm. Nd:YAG, dịka ọmụmaatụ, bụ onye ama ama maka ịrụ ọrụ ya, a na-ejikwa ya na lasers ụlọ ọrụ na ahụike (Y. Chang et al., 2009).

Usoro nnyefe ike:

- Er na Yb Co-doping: Njikọ aka nke Er na Yb na onye na-elekọta ndị ọbịa na-aba uru maka ịkwalite ikuku na oke 1.5-1.6 µm. Yb na-arụ ọrụ dị ka onye na-ahụ maka ihe na-arụ ọrụ nke ọma maka Er site na ịmịnye ọkụ mgbapụta na ịnyefe ume na ion Er, na-eduga n'ikuku ikuku dị elu na igwe mgbasa ozi. Nbufe ike a dị oke mkpa maka ọrụ nke Er-doped fiber amplifiers (EDFA) (DK Vysokikh et al., 2023).

- Nd: Nd anaghị achọkarị onye sensitizer dị ka Yb na sistemụ Er-doped. Nd si arụmọrụ na-ewepụtara ya kpọmkwem absorption nke mgbapụta ọkụ na ụdi emission, na-eme ka ọ a kwụ ọtọ na ịrụ ọrụ nke ọma laser inweta ọkara.

Ngwa:

-Era:A na-ejikarị eme ihe na nkwukọrịta n'ihi mpụta ya na 1.55 µm, nke dabara na windo mfu kacha nta nke silica optical fibers. Er-doped uru mediums dị oké mkpa maka ngwa anya amplifiers na lasers na ogologo ogologo usoro nkwurịta okwu fiber optic.

Yb:A na-ejikarị ngwa ike dị elu n'ihi usoro eletrọnịkị ya dị mfe nke na-enye ohere maka mgbapụta diode nke ọma na mmepụta ike dị elu. A na-ejikwa ihe Yb-doped eme ihe iji kwalite arụmọrụ nke sistemu Er-doped.

- Nd: Kwesịrị ekwesị maka ngwa dịgasị iche iche, site na ịkpụ ụlọ ọrụ mmepụta ihe na ịgbado ọkụ na lasers ahụike. Nd:YAG lasers ka a na-eji kpọrọ ihe maka ịrụ ọrụ ya, ike ya na ike ya.

Kedu ihe kpatara anyị ji họrọ Nd: YAG dị ka ihe na-enweta na laser DPSS

Laser DPSS bụ ụdị laser nke na-eji usoro uru steeti siri ike (dị ka Nd: YAG) nke igwe laser diode semiconductor gbapụtara. Nkà na ụzụ a na-enye ohere maka kọmpat, lasers na-arụ ọrụ nke ọma nke nwere ike ịmepụta ọkụ ọkụ dị elu n'ụdị a na-ahụ anya na-infrared. Maka nkọwa zuru ezu, ị nwere ike ịtụle ịchọ site na nchekwa data sayensị ama ama ma ọ bụ ndị mbipụta maka nyocha zuru oke na teknụzụ laser DPSS.

Ngwaahịa metụtara:Diode-pumped siri ike-ala laser]

Nd: YAG na-ejikarị eme ihe dị ka ihe na-enweta na modul laser nke na-agbapụta semiconductor maka ọtụtụ ihe kpatara ya, dịka nchọpụta dị iche iche gosipụtara:

1.High arụmọrụ na ike mmepụta: Nhazi na simulations nke diode n'akụkụ-pumped Nd: YAG laser modul gosipụtara arụmọrụ dị ịrịba ama, yana Nd: YAG laser na-enye ikike kachasị elu nke 220 W ka ọ na-ejigide ike na-adịgide adịgide kwa pulse n'ọtụtụ ugboro. Nke a na-egosi arụmọrụ dị elu na ikike maka mmepụta ike dị elu nke Nd: YAG lasers mgbe a na-agbapụta ya site na diodes (Lera et al., 2016).
2.Operational mgbanwe na ntụkwasị obi: Nd: Egosiputara ceramics YAG ka ọ na-arụ ọrụ nke ọma n'ogo dị iche iche, gụnyere ogologo ogologo anya na-echekwa anya, na-arụ ọrụ nke ọma na ngwa anya. Nke a na-egosi Nd: Ngbanwe na ntụkwasị obi YAG dị ka ihe na-enweta na ngwa laser dị iche iche (Zhang et al., 2013).
3.Longevity na Beam Quality: Nnyocha na-arụ ọrụ nke ọma, diode-pumped, Nd: YAG laser mesiri ike ogologo ndụ ya na ịrụ ọrụ na-agbanwe agbanwe, na-egosi Nd: YAG dị mma maka ngwa chọrọ isi iyi laser na-adịgide adịgide na ntụkwasị obi. Ọmụmụ ihe ahụ kọrọ ogologo ọrụ na ihe karịrị 4.8 x 10 ^ 9 gbaa na-enweghị mmebi anya, na-ejigide ọmarịcha beam (Coyle et al., 2004).
4.Highly ịrụ ọrụ nke ọma na-aga n'ihu na-efegharị efegharị:Nnyocha egosiputala ọrụ Nd: YAG lasers na-arụ ọrụ nke ọma na-aga n'ihu na-aga n'ihu, na-egosipụta ịdị irè ha dị ka ihe na-enweta na sistemụ laser diode-pumped. Nke a gụnyere imezu oke ngbanwe ngwa anya dị elu yana arụmọrụ mkpọda, na-egosipụta n'ihu na ntozu nke Nd: YAG maka ngwa laser dị elu (Zhu et al., 2013).

Nchikota nke arụmọrụ dị elu, mmepụta ike, mgbanwe ọrụ, ntụkwasị obi, ịdị ogologo ndụ, na mma beam dị mma na-eme ka Nd: YAG bụrụ ihe na-enweta uru na-enweta na semiconductor-pumped laser modules maka ọtụtụ ngwa.

Ntụaka

Chang, Y., Su, K., Chang, H., & Chen, Y. (2009). Kọmpat na-arụ ọrụ nke ọma Q-switched anya-safe laser na 1525 nm na a abụọ-njedebe mgbasa-njide Nd:YVO4 crystal dị ka onye-Raman ọkara. Optics Express, 17 (6), 4330-4335.

Gong, G., Chen, Y., Lin, Y., Huang, J., Gong, X., Luo, Z., & Huang, Y. (2016). Uto na spectroscopic Njirimara nke Er:Yb:KGd(PO3)_4 kristal dị ka ihe na-ekwe nkwa 155 µm laser nweta ọkara. Ngwa ngwa anya Express, 6, 3518-3526.

Vysokikh, DK, Bazakutsa, A., Dorofeenko, AV, & Butov, O. (2023). Ihe nlere dabere na nnwale nke Er/Yb na-enweta ọkara maka ndị na-amụba eriri na lasers. Akwụkwọ akụkọ nke Optical 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). Ngosipụta nke uru profaịlụ na arụmọrụ nke QCW Nd: YAG laser n'akụkụ diode. Ngwa anya etinyere, 55(33), 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). Nrụmọrụ dị elu ND:YAG seramiiki anya na-echekwa laser na-arụ ọrụ na 1442.8 nm. Akwụkwọ ozi anya, 38 (16), 3075-3077.

Coyle, DB, Kay, R., Stysley, P., & Poulios, D. (2004). Ọmarịcha, ntụkwasị obi, ogologo ndụ, diode-pumped Nd:YAG laser maka ahịhịa dabere na mbara ala topographical altimetry. Ngwa anya etinyere, 43(27), 5236-5242.

Zhu, HY, Xu, CW, Zhang, J., Tang, D., Luo, D., & Duan, Y. (2013). Igwe ọkụ na-aga n'ihu nke ukwuu Nd: YAG seramiiki lasers na 946 nm. Akwụkwọ ozi Laser Physics, 10.

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