Nnọọ na Ruijie Laser

Fiber laser ọnwụ na Medical

Fiber laser ọnwụ na ọgwụ, eriri laser ọnwụ igwe na-doped eriri n'onwe ya dị ka na-arụ ọrụ umi, na eriri laser ọnwụ igwe n'onwe ya, ma na-arụ ọrụ nke ndu ife siri ike-ala laser.Resonator, mejupụtara ihe na-arụ ọrụ, mgbapụta isi akụkụ atọ bụ isi.N'ime afọ ndị na-adịbeghị anya, fiber lasers na ụlọ ọrụ mmepụta ihe na mgbakwunye na ngwa dịgasị iche iche, na mmụba na-ewu ewu na ngalaba ahụike.

Fiber Technology Center, University of Sydney, Australia (OFT C) nke Stuart Jackson kwuru, sị: "Fiber laser ọnwụ igwe maka ịwa ahụ ngwa, ọ dị mkpa ka kọmpat lasers, obere mmezi, elu arụmọrụ elu arụmọrụ na ezi thermal Njirimara nke eriri laser.na-eme ka ha dị mma maka ngwa ịwa ahụ n'ihi na ha na-eji diode-pumped, ya mere ọ dị oke ọnụ.Fiber udi karịa ihe siri ike steeti laser dị elu n'ihi na ọ na-eme ka ọ dị mkpa maka eriri nnyefe ọzọ, si otú ahụ belata ọnụ ahịa ma belata mgbagwoju anya nke usoro ahụ.

Fiber laser ọnwụ igwe na 1963 site Elias Spritzer mepụtara.Tupu emechaa banye azụmahịa ojiji, mgbe ihe fọrọ nke nta ka afọ abụọ nke mmepe oge.Na mbido, eji otu ụdị diode laser agbapụta, naanị radieshon iri puku kwuru iri.Ma ọ nwere ọtụtụ ndị ọrụ ka mara mma n'ihi na ha elu uru, ọ nwere ike ime ka a otutu otu-mode na-aga n'ihu na-arụ ọrụ nke obere ụwa ion, nke bụ crystal laser ike nweta.1990, eriri lasers iji nweta ọkwa mmepụta nke leap-watt, mgbe ahụ, kọrọ ihe nrụpụta laser erbium-doped fiber laser ike elu 4 W, mmepe a taa, anyị na-ahụ ike nke 10 W na elu otu ụdị fiber lasers ntọala.

Na eriri laser ọnwụ igwe, eriri n'onwe ya na-eme dị ka a resonant oghere.Ngwa ndị a na-enwekarị erbium doped single-mode core ytterbium (ma ọ bụ ngwakọta ya), ma ọ bụ ihe ụwa na-adịghị ahụkebe.Ike sitere na isi iyi ọkụ siri ike, jikọtara ya na mkpuchi nke eriri, wee banye n'ime isi, mgbapụta ahụ na-eme pant atọm.N'ihe gbasara ahụike, ogologo wavelength kacha mkpa bụ: 1.3μm band maka onyonyo, 1.5μm (mmiri kacha elu) -4μm band maka ịwa ahụ, sitere na oke ike nke milliliters ruo ihe karịrị 100 W.

Jackson kwuru, sị: "Ojiji nke CW lasers, biomedical ngwa, karịsịa ọ bụla elu-ike CW lasers, nwere ike irite uru site fiber laser ọnwụ igwe site a fiber laser ọnwụ igwe na-enye elu arụmọrụ, obosara n'iji ya gee ntị nso, na dum mmepụta.ike nso nwere uru nke mma beam mma, karịsịa a ma ama;nke mere na eriri lasers dị na ngwa ahụike na-aga n'ihu na-abawanye."