Umklamo wendlela ebonakalayo yonxandeama-laser ashukunyiswayo
Ukubuka konke komklamo wendlela yokukhanya
I-laser yefayibha eboshwe ngemodi ephindwe kabili e-dissipative soliton resonant thulium-doped esekelwe esakhiweni sesibuko sendandatho yefayibha engeyona imigqa.
2. Incazelo yendlela ebonakalayo
I-dual-wavelength dissipative soliton resonant thulium-dopedi-fiber laseryamukela umklamo wesakhiwo somgodi omise okwe-"8″ (Isithombe 1).
Ingxenye yesobunxele iyiluphu eyinhloko eqondene nohlangothi olulodwa, kanti ingxenye yesokudla iyisakhiwo sesibuko seluphu seluphu se-fiber optical esingeyona i-linear. Iluphu yesobunxele eqondene nohlangothi olulodwa ifaka i-bundle splitter, i-fiber optical ene-thulium engu-2.7m (SM-TDF-10P130-HE), kanye ne-2 μm band optical fiber coupler ene-coupling coupling engu-90:10. I-Isolator eyodwa encike ku-polarization-dependent (PDI), ama-Polarization Controllers amabili (ama-Polarization controllers: PC), i-Polarization-maintenance Fiber engu-0.41m (PMF). Isakhiwo sesibuko se-fiber optic ring esingeyona i-linear ngakwesokudla sitholakala ngokuhlanganisa ukukhanya kusuka ku-loop yesobunxele eqondene nohlangothi olulodwa kuya esibukweni se-fiber optic ring esingeyona i-linear right ngokusebenzisa i-2×2 structure optical coupler ene-coefficient engu-90:10. Isakhiwo sesibuko se-fiber optical ring esingeyona i-linear ngakwesokudla sifaka i-fiber optical enobude obungamamitha angu-75 (SMF-28e) kanye ne-polarization controller. I-fiber optical yemodi eyodwa engamamitha angu-75 isetshenziselwa ukuthuthukisa umphumela ongewona owe-linear. Lapha, kusetshenziswa i-coupler ye-fiber optical engu-90:10 ukwandisa umehluko wesigaba esingewona owe-linear phakathi kokusabalala kwewashi kanye nokwe-counterclockwise. Ubude obuphelele balesi sakhiwo se-dual-wavelength bungama-89.5 amamitha. Kulokhu kusetha kokuhlola, ukukhanya kwephampu kuqala kudlula ku-beam combiner ukuze kufinyelelwe ku-gain medium thulium-doped optical fiber. Ngemuva kwe-thulium-doped optical fiber, i-coupler engu-90:10 ixhunywe ukuze ijikeleze u-90% wamandla ngaphakathi kwe-cavity futhi ithumele u-10% wamandla ngaphandle kwe-cavity. Ngesikhathi esifanayo, isihlungi se-birefringent Lyot sakhiwe yi-fiber optical egcina i-polarization etholakala phakathi kwezilawuli ezimbili ze-polarization kanye ne-polarizer, edlala indima ekuhlungeni amaza e-spectral.
3. Ulwazi lwangemuva
Njengamanje, kunezindlela ezimbili eziyisisekelo zokwandisa amandla okushaya kwenhliziyo kwama-laser ashaywayo. Enye indlela ukunciphisa ngqo imiphumela engeyona eye-linear, okuhlanganisa ukwehlisa amandla aphezulu okushaya kwenhliziyo ngezindlela ezahlukahlukene, njengokusebenzisa ukuphathwa kokusabalalisa kwama-pulse anwetshiwe, ama-oscillator amakhulu ashaywayo, kanye nama-laser ashaywayo aqhekeka ngomsebe, njll. Enye indlela ukufuna izindlela ezintsha ezingabekezelela ukuqongelela kwesigaba esingeyona eye-linear, njengokufana ngokwakho kanye nama-pulse angunxande. Indlela eshiwo ngenhla ingathuthukisa ngempumelelo amandla okushaya kwenhliziyoi-laser evuvukilekumashumi ama-nanojoule. I-Dissipative soliton resonance (i-Dissipative soliton resonance: DSR) iyindlela yokwakheka kwe-rectangular impulse eyaphakanyiswa okokuqala ngu-N. Akhmediev et al. ngo-2008. Isici sama-dissipative soliton resonance pulses ukuthi, ngenkathi kugcinwa i-amplitude ingaguquki, ububanzi be-pulse kanye namandla e-non-wave splitting resonance pulse ayanda ngokuzumayo ngokwanda kwamandla ephampu. Lokhu, ngezinga elithile, kuphula umkhawulo we-soliton theory yendabuko ku-single-pulse energy. I-Dissipative soliton resonance ingatholakala ngokwakha ukumuncwa okugcwele kanye nokumuncwa okugcwele okungemuva, njengomphumela wokujikeleza kwe-nonlinear polarization (NPR) kanye nomphumela wesibuko se-fiber ring mirror (NOLM). Imibiko eminingi mayelana nokukhiqizwa kwama-dissipative soliton resonance pulses isekelwe kulezi zindlela ezimbili zokukhiya imodi.
Isikhathi sokuthunyelwe: Okthoba-09-2025