Moralo oa tsela ea optical ea khutlonnetsepali-laser tsa pulsed
Kakaretso ea moralo oa tsela ea Optical
Laser e notletsoeng e notletsoeng ka mahlakore a mabeli a maqhubu a soliton resonant thulium-doped fiber laser e thehiloeng ho sebopeho sa seipone sa leqhubu le sa tsitsang.
2. Tlhaloso ea tsela ea Optical
Habeli-wavelength dissipative soliton resonant thulium-dopedlaser ea fibere amohela moralo oa "8" oa sebopeho sa mokoti (setšoantšo sa 1).
Karolo e ka ho le letšehali ke sekoahelo se seholo sa unidirectional, ha karolo e nepahetseng e le sebopeho sa seipone sa optical fiber loop se sa tloaelehang. Le letšehali unidirectional loop e akarelletsa ho petsoha ka bongata, 2.7m thulium-doped optical fiber (SM-TDF-10P130-HE), le 2 μm band optical fiber coupler le coefficient coupling ea 90:10. Isolator e le 'ngoe e itšetlehileng ka polarization (PDI), Li- Controllers tse peli tsa Polarization (Polarization controllers: PC), 0.41m Polarization-maintenance Fiber (PMF). Sebopeho sa seipone se se nang moeli sa fiber optic ka ho le letona se finyelloa ka ho kopanya leseli ho tloha ka lehlakoreng le letšehali la unidirectional ho seipone se se nang moeli oa fiber optic ka ho le letona ka 2 × 2 sebopeho sa optical coupler se nang le coefficient ea 90:10. Sebopeho sa seipone sa fiber optical se sa lekanyetsoang ka ho le letona se kenyelletsa fiber ea optical ea bolelele ba limithara tse 75 (SMF-28e) le molaoli oa polarization. Fiber ea optical ea 75-meter single-mode optical e sebelisoa ho ntlafatsa phello e se nang moeli. Mona, 90:10 optical fiber coupler e sebelisoa ho eketsa phapano ea karolo e sa lekanyetsoang lipakeng tsa phatlalatso ea clockwise le counterclockwise. Bolelele bohle ba sebopeho sena sa maqhubu a mabeli ke limithara tse 89.5. Setupong sena sa liteko, lebone la pompo le qala ka ho feta har'a sekontiri ho fihlela fibre e mahareng ea thulium-doped optical fiber. Ka mor'a thulium-doped optical fiber, 90:10 coupler e hokahanngoa ho potoloha 90% ea matla ka har'a sekoti le ho romela 10% ea matla ka ntle ho lesoba. Ka nako e ts'oanang, filthara ea Birefringent Lyot e entsoe ka fiber e bolokang polarization e pakeng tsa lilaoli tse peli tsa polarization le polarizer, e bapalang karolo ho sefang maqhubu a pono.
3. Tsebo ea semelo
Hajoale, ho na le mekhoa e 'meli ea mantlha ea ho eketsa matla a pulse ea lasers ea pulsed. Tsela e 'ngoe ke ho fokotsa ka ho toba liphello tse se nang moeli, ho kenyelletsa le ho theola matla a tlhōrō ea li-pulses ka mekhoa e sa tšoaneng, e kang ho sebelisa tsamaiso ea ho hasana bakeng sa li-pulse tse otlolohileng, li-oscillator tse khōlōhali, le li-laser tsa pulsed lasers, joalo-joalo. Mokhoa o boletsoeng ka holimo o ka atleha ho matlafatsa matla a pulse ealaser ea pulsedho isa ho li-nanojoules tse mashome. Dissipative soliton resonance (Dissipative soliton resonance: DSR) ke mokhoa oa ho theha tšusumetso e nang le mahlakore a mabeli a pele a hlahisitsoeng ke N. Akhmediev et al. ka 2008. Tšobotsi ea dissipative soliton resonance pulses ke hore, ha u ntse u boloka amplitude kamehla, bophara ba pulse le matla a sephahla se senyenyane sa mahlakore a mabeli se eketsa monotonically ka ho eketseha ha matla a pompo. Sena, ho isa bohōleng bo itseng, se senya moeli oa khopolo ea setso ea soliton mabapi le matla a pulse a le mong. Dissipative soliton resonance e ka finyelloa ka ho haha ho monya ho tletseng le ho khutlisa ho kenngoa ha saturated, joalo ka nonlinear polarization rotation effect (NPR) le nonlinear fiber ring mirror effect (NOLM). Litlaleho tse ngata tse mabapi le tlhahiso ea li-dissipative soliton resonance pulses li ipapisitse le mekhoa ena e 'meli ea ho notlela.
Nako ea poso: Oct-09-2025