Optical nzira dhizaini rectangularpulsed lasers
Mhedziso yeOptical nzira dhizaini
A passive mode-yakakiyiwa mbiri-wavelength dissipative soliton resonant thulium-doped fiber laser yakavakirwa pane isina mutsara faibha mhete yegirazi chimiro.
2. Tsanangudzo yenzira yeOptical
Iyo mbiri-wavelength dissipative soliton resonant thulium-dopedfiber laserinotora dhizaini ye “8″ yakaumbwa mhango (Mufananidzo 1).
Chikamu chekuruboshwe ndicho chikuru unidirectional loop, nepo chikamu chekurudyi isiri mutsara optical fiber loop girazi chimiro. Kuruboshwe unidirectional loop inosanganisira bundle splitter, 2.7m thulium-doped optical fiber (SM-TDF-10P130-HE), uye 2 μm bhendi optical fiber coupler ine coupling coefficient ye90:10. Imwe polarization-inotsamira Isolator (PDI), maviri Polarization Controllers (Polarization controllers: PC), 0.41m Polarization-maintenance Fiber (PMF). Iyo nonlinear fiber optic ring mirror structure iri kurudyi inowanikwa nekubatanidza chiedza kubva kuruboshwe unidirectional loop kune nonlinear fiber optic ring mirror kurudyi kuburikidza ne2 × 2 structure optical coupler ine coefficient ye90:10. Iyo isiri-linear optical fiber mhete yegirazi chimiro kurudyi inosanganisira 75-mita-yakareba optical fiber (SMF-28e) uye polarization controller. Iyo 75-mita imwe-modhi optical fiber inoshandiswa kuwedzera iyo isiri-linear mhedzisiro. Pano, 90:10 optical fiber coupler inoshandiswa kuwedzera mutsauko usiri wechikamu pakati pewachi newachi kupararira. Hurefu hwakazara hweiyi mbiri-wavelength chimiro ndeye 89.5 metres. Mukuseta uku, mwenje wepombi inotanga kupfuura nemusanganisi wedanda kuti usvike pakuwana yepakati thulium-doped optical fiber. Mushure meiyo thulium-doped optical fiber, 90:10 coupler inobatanidzwa kutenderera 90% yesimba mukati memhango uye kutumira 10% yesimba kunze kwegomba. Panguva imwecheteyo, birefringent Lyot sefa inoumbwa nepolarization-inochengetedza optical fiber iri pakati pevaviri polarization controller uye polarizer, iyo inoita basa mukusefa spectral wavelengths.
3. Ruzivo rwekumashure
Parizvino, kune nzira mbiri dzekutanga dzekuwedzera pulse simba re pulsed lasers. Imwe nzira ndeyekudzikisa zvakananga mhedzisiro isina mutsara, kusanganisira kudzikisa simba repamusoro remapuru kuburikidza nenzira dzakasiyana-siyana, dzakadai sekushandisa dispersion management kune yakatambanudzwa pulses, giant chirped oscillators, uye danda-kupatsanurwa pulsed lasers, etc. Imwe nzira ndeyekutsvaga nzira itsva dzinogona kushivirira zvakanyanya nonlinear phase accumulation, senge self-similarity pulsed. Iyo nzira yataurwa pamusoro inogona kubudirira kukwidziridza pulse simba repulsed laserkusvika kumakumi e nanojoules. Dissipative soliton resonance (Dissipative soliton resonance: DSR) inonzi rectangular impulse formation mechanism yakatanga kurongwa naN. Akhmediev et al. mu 2008. Chimiro che dissipative soliton resonance pulses ndechokuti, paunenge uchichengetedza amplitude nguva dzose, kuputika kwepuru uye simba reiyo isiri-wave splitting rectangular pulse inowedzera monotonically nekuwedzera kwepombi simba. Izvi, kusvika pamwero wakati, zvinopaza nekudzikamisa kwechinyakare soliton theory pane imwechete-pulse simba. Dissipative soliton resonance inogona kuwanikwa nekuvaka kunyura kwakazara uye kudzoreredza kunyura kwakazara, senge nonlinear polarization rotation athari (NPR) uye iyo isiri-linear fiber ring mirror athari (NOLM). Mishumo yakawanda pamusoro pechizvarwa che dissipative soliton resonance pulses inobva pane idzi nzira mbiri dzekuvhara maitiro.
Nguva yekutumira: Oct-09-2025