Igishushanyo mbonera cy'inzira y'urukiramende ya lasers pulsed

Igishushanyo mbonera cy'inzira y'urukiramendelaser zikoresha pulse

Incamake y'igishushanyo mbonera cy'inzira y'urumuri

Laser ya fiber ya thulium-doped fiber laser ifite uburyo bwo gufunga bwa dual-wavelength ishingiye ku miterere y'indorerwamo y'uruhererekane rw ...

2. Ibisobanuro by'inzira y'urumuri

Ishusho ya thulium-doped ifite uburebure bubiri bw'umurabalaser ya fibreikoresha igishushanyo mbonera cy'imiterere y'umwobo ufite ishusho ya "8″ (Ishusho ya 1).

Igice cy'ibumoso ni umuyoboro w'ingenzi ugana ku ruhande rumwe, mu gihe igice cy'iburyo ari imiterere y'indorerwamo y'urukiramende rwa fiber optique idafite umurongo umwe. Umuyoboro w'ibumoso ugizwe n'icunga rito, fibre optique ya metero 2.7 ya thulium (SM-TDF-10P130-HE), n'icyuma gihuza fibre optique ya metero 2 ifite coefficient yo guhuza ya 90:10. Isolateur imwe ishingiye kuri polarization (PDI), Controllers ebyiri za Polarization (Polarization controllers: PC), Fibre yo kubungabunga Polarization ya metero 0.41 (PMF). Imiterere y'indorerwamo y'indorerwamo ya fiber optique idafite umurongo umwe iburyo igerwaho binyuze mu guhuza urumuri kuva ku muyoboro w'ibumoso ugana ku ndorerwamo y'indorerwamo ya fiber optique idafite umurongo umwe iburyo binyuze mu cyuma gihuza imiterere ya 2 × 2 gifite coefficient ya 90:10. Imiterere y'indorerwamo y'indorerwamo ya fiber optique idafite umurongo umwe iburyo irimo fibre optique ifite uburebure bwa metero 75 (SMF-28e) n'icyuma gihuza polarization. Fibre optique ya metero 75 ikoreshwa mu kongera ingaruka zitari umurongo umwe. Aha, hakoreshwa coupler ya fibre optique ya 90:10 kugira ngo hongerwe itandukaniro ry’icyiciro kitari umurongo hagati y’isaha n’iy’isaha. Uburebure bwose bw’iyi miterere y’uburebure bw’urumuri rw’ibice bibiri ni metero 89.5. Muri ubu buryo bw’igerageza, urumuri rwa pompe rubanza guca mu cyuma gihuza imirasire kugira ngo rugere kuri fibre optique ya gain medium thulium-doped. Nyuma ya fibre optique ya thulium-doped, coupler ya 90:10 ihujwe kugira ngo izunguruke 90% by’ingufu mu mwobo kandi yohereze 10% by’ingufu mu mwobo. Muri icyo gihe, filter ya Lyot ifite birefringent igizwe na fibre optique ikomeza polarization iri hagati y’ibikoresho bibiri bigenzura polarization na polarizer, bigira uruhare mu kuyungurura uburebure bw’urumuri rwa spectral.

3. Ubumenyi bw'ibanze

Kuri ubu, hari uburyo bubiri bw'ibanze bwo kongera ingufu z'amapingu za laser zikoresha pulse. Uburyo bumwe ni ukugabanya ingaruka zitari umurongo umwe, harimo kugabanya imbaraga z'amapingu binyuze mu buryo butandukanye, nko gukoresha uburyo bwo gucunga gutatanya amapingu yarambuye, oscillators nini zikoresha ibyuma binini bicura, na laser zikoresha pulse zikoresha amashanyarazi, nibindi. Ubundi buryo ni ugushaka uburyo bushya bushobora kwihanganira ubwiyongere bw'ibyiciro bitari umurongo umwe, nko gusana no guhindagurika kw'amapingu. Ubu buryo bwavuzwe haruguru bushobora kongera neza ingufu z'amapingu zalaser ikoresha pulsekuri mirongo ya nanojoule. Dissipative soliton resonance (Dissipative soliton resonance: DSR) ni uburyo bwo gushyiraho impulse y’urukiramende bwatanzwe bwa mbere na N. Akhmediev et al. mu 2008. Ikiranga dissipative soliton resonance pulses ni uko, mu gihe amplitude igumana uko amplitude ihagaze, ubugari bw’impembe n’ingufu by’impembe y’urukiramende idatandukanya umuraba byiyongera mu buryo bumwe uko imbaraga za pompe ziyongera. Ibi, ku rugero runaka, bigabanya imbibi z’inyigisho gakondo ya soliton ku ngufu za single-pulse. Dissipative soliton resonance ishobora kugerwaho binyuze mu kubaka saturated absorption na reverse saturated absorption, nka nonlinear polarization rotation effect (NPR) na nonlinear fiber ring mirror effect (NOLM). Raporo nyinshi ku ikorwa rya dissipative soliton resonance pulses zishingiye kuri izi nzira ebyiri zo gufunga mode.