Nhazi ụzọ anya nke akụkụ anọlasers pulsed
Nchịkọta nke nhazi ụzọ anya
Ụdị ihe na-agafe agafe nke akpọchiri okpukpu abụọ-wavelength dissipative soliton resonant thulium-doped eriri laser dabere na nhazi mirror mgbanaka eriri anaghị adị.
2. Nkọwa ụzọ anya
Ihe na-agbasa soliton na-emegharị thulium-doped nke nwere ogologo wavelengtheriri lasernakweere nhazi ihe owuwu oghere “8” (Foto 1).
Akụkụ aka ekpe bụ isi loop unidirectional, ebe akụkụ aka nri bụ nhazi enyo eriri anya na-adịghị ahụ anya. Aka ekpe unidirectional aka ekpe gụnyere ihe nkesa ngwugwu, eriri anya 2.7m thulium-doped (SM-TDF-10P130-HE), yana eriri eriri anya 2 μm nwere ọnụọgụ njikọ nke 90:10. Otu onye na-adabere na polarization (PDI), njikwa Polarization abụọ (Ndị na-ahụ maka njikwa ike: PC), 0.41m Polarization-maintenance Fiber (PMF). A na-enweta usoro enyo enyo fiber optic nke na-abụghị nke dị n'aka nri site na ijikọ ọkụ sitere na aka ekpe unidirectional loop na enyo mgbanaka eriri eriri na-abụghị nke dị n'akụkụ aka nri site na 2 × 2 Ọdịdị ngwa anya njikọ na ọnụọgụ nke 90:10. Ọdịdị enyo enyo eriri anya na-adịghị ahụ anya nke dị n'aka nri gụnyere eriri anya ogologo mita 75 (SMF-28e) na onye na-achịkwa polarization. A na-eji eriri anya otu ụdị 75-mita iji kwalite mmetụta na-adịghị adị. N'ebe a, a na-arụ ọrụ 90:10 optical fiber coupler iji mee ka ọdịiche nke oge adịghị n'etiti mgbasa elekere na elekere anya. Ngụkọta ogologo nke ihe owuwu nwere ogologo nke abụọ bụ mita 89.5. N'ime nhazi nnwale a, ọkụ mgbapụta na-ebu ụzọ gafere site na igwe na-ejikọta beam iji ruo uru nke eriri anya thulium-doped na-enweta. Mgbe eriri anya nke thulium-doped, 90: 10 jikọtara ya na-ekesa 90% nke ume n'ime oghere ma zipu 10% nke ume site na oghere. N'otu oge ahụ, ihe nzacha Lyot bụ nke nwere eriri anya na-echekwa polarization nke dị n'etiti njikwa polarization abụọ na polarizer, nke na-ekere òkè na nzacha ogologo ogologo ogologo.
3. Ihe ọmụma ndabere
Ka ọ dị ugbu a, e nwere ụzọ abụọ bụ isi maka ịba ụba ume nke pulse lasers. Otu obibia bụ kpọmkwem belata na-abụghị online mmetụta, gụnyere eweda ọnụ ọgụgụ kasị elu ike nke usu site dị iche iche ụzọ, dị ka iji dispersion management maka agbatị pulses, ibu chirped oscillators, na doo-kewara pulsed lasers, wdg ọzọ obibia bụ ịchọ ọhụrụ usoro na ike anabataghị ọzọ nononlinear na-agbakọta, dị ka onwe-angularity na rejista. Usoro ahụ a kpọtụrụ aha n'elu nwere ike ime ka ume pulse dị elu nke ọmalaser pulsedruo iri iri nanojoules. Resonance soliton dissipative (Dissipative soliton resonance: DSR) bụ usoro nhazi mkpali akụkụ anọ nke N. Akhmediev et al tụpụtara nke mbụ. na 2008. Njirimara nke dissipative soliton resonance pulses bụ na, mgbe ị na-edebe njupụta mgbe nile, obosara usu na ike nke na-abụghị ife kewara akụkụ anọ pulse na-abawanye monotonically na-abawanye nke mgbapụta ike. Nke a, ruo n'ókè ụfọdụ, na-agbaji site na njedebe nke usoro ọdịnala soliton na ike otu-pulse. Enwere ike nweta resonance soliton dissipative site n'ịmepụta nnabata juru eju na ntụgharị nnabata juputara, dị ka mmetụta ntụgharị polarization na-adịghị adị (NPR) na mmetụta enyo fiber na-adịghị ahụ anya (NOLM). Ọtụtụ akụkọ gbasara ọgbọ nke mkpọ ụda soliton resonance na-agbasasị dabere na usoro mkpọchi ọnọdụ abụọ a.
Oge nzipu: Ọkt-09-2025