Nnọọ na Ruijie Laser

Ngwa anya eriri nke eriri laser ọnwụ igwe bụ ụdị nke ọkara-infrared gbalaga laser na eriri laser dị ka na-arụ ọrụ ihe (enweta ọkara).Ọ nwere ike kewaa n'ime obere ụwa doped fiber laser, ngwa anya fiber nononlinear mmetụta laser, otu kristal fiber laser, eriri arc lasers, wdg.. dabere na launching excitations.N'ime ha, laser doped fiber na-adịghị ahụkebe tozuru oke, dị ka doped erbium fiber amplifier (EDFA) ejirila ya na sistemụ nkwukọrịta fiber optic.A na-ejikarị laser fiber laser eme ihe na agha (ọgbaghara foto, nchọpụta laser, nkwurịta okwu laser, wdg), nhazi laser (akara laser, robot laser, micromachining laser, wdg), ahụike na mpaghara ndị ọzọ.

The fiber laser mere SiO2 dị ka matriks ihe nke iko siri ike eriri, nke ụkpụrụ nke ìhè ndu bụ ka ojiji nke mkpokọta echiche ụkpụrụ nke tube, ya bụ, mgbe ìhè na-emitted si ngwa anya njupụta nke elu refractive. index ka otu nke obere refractive index nwere akụkụ ka ukwuu n'akuku dị oke egwu, ntule ntule ga-apụta na ìhè merenụ ga-egosipụta kpam kpam na njupụta ngwa anya nke nnukwu ngbanwe index.Mgbe ìhè na-esi na njupụta ngwa anya njupụta (ya bụ, ihe nrịbama nke ìhè dị na ọkara dị ukwuu) na interface nke ngwa anya sparse media (ya bụ, ihe nrịbama nke ìhè dị ntakịrị na ọkara), All nke ìhè na-egosipụta azụ na mbụ ọkara.Ọ dịghị ìhè banye n'ime ngwa anya njupụta ọkara nke bụ nke obere refractive index. Nkịtị iferi eriri bụ n'ozuzu mejupụtara nke a elu refractive index iko isi (dayameta nke 4 ~ 62.5μm), ihe etiti ala refractive index silicon iko cladding (isi dayameta). 125μm) na ihe mkpuchi resin siri ike.Enwere ike kewaa usoro mgbasa ozi fiber optic n'ime eriri otu-mode (SM) na eriri multi-mode (MM).Single-mode eriri isi dayameta, nke nta isi dayameta (4 ~ 12μm) nwere ike na-agbasa otu ụdị nke ìhè na ọnọdụ dispersion bụ obere.Multimode eriri isi dayameta nke bụ thicker (dayameta karịrị 50μm) nwere ike gbasaa a dịgasị iche iche nke ụdịdị nke ìhè mgbe intermodal dispersion bụ ibu.Dị ka ọnụego nkesa refractive si kwuo, eriri optic nwere ike kewaa n'ime eriri nzọụkwụ nzọụkwụ (SI) na eriri graded index (GI).

Were obere ụwa doped fiber lasers ka ihe atụ, doped na obere ụwa irighiri ihe dị ka uru ọkara, doped emep uta eri na-obere n'etiti abụọ enyo na-akpụ a resonant oghere.Ọkụ mgbapụta na-eme site na M1 n'ime eriri wee mepụta laser site na M2.Mgbe ọkụ mgbapụta na-agafe na eriri, ọ na-etinye ya n'ahụ site na ion ụwa na-adịghị ahụkebe na eriri ahụ na ndị electrons na-enwe obi ụtọ na ọkwa dị elu nke excitation dị elu iji nweta ntụgharị nke ndị mmadụ.A na-ebufe ihe ndị ahụ na-atụgharị site na ike dị elu gaa na ala ala n'ụdị radieshon iji mepụta laser.