Nhazi ụzọ anya nke akụkụ anọlaser pulsed
Nkọwa nke imewe ụzọ anya
Laser eriri soliton nke nwere eriri abụọ nke na-agbanwe agbanwe nke e ji thulium-doped mee, nke dabere na usoro enyo eriri na-abụghị nke kwụ ọtọ.
2. Nkọwa nke ụzọ anya
Ihe na-agbanwe agbanwe nke soliton resonant nke nwere thulium nke nwere ike ịgbasa n'ime eriri abụọ.eriri laserna-eji usoro nhazi oghere dị ka "8″" eme ihe (Foto nke 1).
Akụkụ aka ekpe bụ okirikiri unidirectional bụ isi, ebe akụkụ aka nri bụ okirikiri unidirectional enyo eriri optical na-abụghị nke linear. Oghere unidirectional nke aka ekpe gụnyere ihe nkesa ngwugwu, eriri optical thulium-doped 2.7m (SM-TDF-10P130-HE), na njikọ eriri optical band 2 μm nwere njikọ coefficient nke 90:10. Otu onye na-achịkwa polarization-dependent (PDI), ndị na-achịkwa polarization abụọ (ndị na-achịkwa polarization: PC), eriri mmezi polarization-maintenance 0.41m (PMF). A na-enweta nhazi enyo mgbanaka eriri optical na-abụghị nke linear n'aka nri site na ijikọ ìhè site na aka ekpe unidirectional loop na enyo mgbanaka eriri optical na-abụghị nke linear n'aka nri site na njikọta optical nhazi 2 × 2 nke nwere coefficient nke 90:10. Nhazi enyo mgbanaka eriri optical na-abụghị nke linear n'aka nri gụnyere eriri optical ogologo mita 75 (SMF-28e) na onye na-achịkwa polarization. A na-eji eriri optical otu-mode mita 75 iji melite mmetụta na-abụghị nke linear. N'ebe a, a na-eji njikọ eriri optical 90:10 eme ka ọdịiche nke usoro na-abụghị nke ahịrị dị n'etiti mgbasa elekere na nke megidere elekere dịkwuo elu. Ogologo ogologo nke nhazi ogologo ebili mmiri abụọ a bụ mita 89.5. Na nhazi nnwale a, ọkụ mgbapụta na-ebu ụzọ gafere ihe ngwakọta beam iji ruo eriri optical thulium nke gain dị n'etiti. Mgbe eriri optical thulium nke doped gasịrị, a na-ejikọ njikọ 90:10 iji gbasaa 90% nke ike n'ime oghere ahụ ma ziga 10% nke ike site na oghere ahụ. N'otu oge ahụ, ihe nzacha Lyot birefringent nwere eriri optical na-edobe polarization nke dị n'etiti ndị njikwa polarization abụọ na polarizer, nke na-arụ ọrụ na nzacha ogologo spectral.
3. Ihe ọmụma ndabere
Ugbu a, e nwere ụzọ abụọ dị mkpa iji mee ka ike mkpali nke laser pulsed dịkwuo elu. Otu ụzọ bụ ibelata mmetụta na-abụghị ahịrị kpọmkwem, gụnyere ibelata ike kachasị elu nke pulses site na ụzọ dị iche iche, dị ka iji njikwa mgbasa maka pulses agbatị, nnukwu oscillators chirped, na laser pulsed-splitting, wdg. Ụzọ ọzọ bụ ịchọ usoro ọhụrụ nke nwere ike ịnagide mkpokọta usoro na-abụghị ahịrị, dị ka myirịta onwe onye na pulses akụkụ anọ. Usoro a kpọtụrụ aha n'elu nwere ike ime ka ike pulse nke ọma dịkwuo elu.laser pulsedruo ọtụtụ iri nanojoules. Dissipative soliton resonance (Dissipative soliton resonance: DSR) bụ usoro nhazi mkpali akụkụ anọ nke N. Akhmediev et al. tụrụ aro na 2008. Ihe e ji mara dissipative soliton resonance pulses bụ na, ebe ọ na-eme ka amplitude ahụ dịgide, obosara na ike nke pulse akụkụ anọ nke na-abụghị ebili na-abawanye n'otu ebe ka ike mgbapụta ahụ na-abawanye. Nke a, ruo n'ókè ụfọdụ, na-emebi mmachi nke ozizi soliton ọdịnala na ike otu-pulse. Enwere ike nweta dissipative soliton resonance site na iwulite saturated absorption na reverse saturated absorption, dị ka nonlinear polarization rotation effect (NPR) na nonlinear fiber ring mirror effect (NOLM). Ọtụtụ akụkọ gbasara mmepụta nke dissipative soliton resonance pulses dabere na usoro abụọ a na-akpọchi mode.
Oge ozi: Ọktoba-09-2025