Dhizaini yenzira ye rectangular yemazisomalaser ane pulsed
Pfupiso yekugadzirwa kwenzira yeOptical
Laser yefiber ine mafungu maviri inonyungudika uye ine thulium-doped yakavakirwa pagirazi regirazi risingatsvedzereki rine fiber ring.
2. Tsananguro yenzira yemaziso
Dual-wavelength dissipative soliton resonant thulium-dopedlaser yefaibhainoshandisa dhizaini yechimiro chegomba rakaita se "8″" (Mufananidzo 1).
Chikamu chekuruboshwe ndicho chinotenderera chimwe chete, nepo chikamu chekurudyi chiri chimiro chegirazi re fiber loop re nonlinear optical. Chimiro chekuruboshwe chine nzira imwe chete chinosanganisira bundle splitter, fiber ye 2.7m thulium-doped optical (SM-TDF-10P130-HE), uye 2 μm band optical fiber coupler ine coupling coefficient ye 90:10. Imwe polarization-dependent Isolator (PDI), Polarization Controllers mbiri (Polarization controllers: PC), Polarization-maintenance Fiber ye 0.41m (PMF). Chimiro chegirazi re fiber optic ring re nonlinear chiri kurudyi chinowanikwa nekubatanidza chiedza kubva kuruboshwe kuenda kuruboshwe kuenda kugirazi re fiber optic ring re nonlinear riri kurudyi kuburikidza ne 2×2 structure optical coupler ine coefficient ye 90:10. Chimiro chegirazi re fiber optic ring re nonlinear riri kurudyi chinosanganisira fiber ye optical yakareba mamita 75 (SMF-28e) uye polarization controller. Fiber ye optical ine 75 metres single-mode inoshandiswa kuwedzera mhedzisiro isina kurongeka. Pano, chinobatanidza fiber ye optical ine 90:10 chinoshandiswa kuwedzera musiyano wechikamu chisina kurongeka pakati pekupararira kwewachi newachi. Hurefu hwese hwechimiro ichi che dual-wavelength i89.5 metres. Mugadziriro iyi yekuedza, chiedza chepombi chinotanga chapfuura nemubeam combiner kuti chisvike pa gain medium thulium-doped optical fiber. Mushure me thulium-doped optical fiber, chinobatanidza 90:10 kuti chitenderedze 90% yesimba mukati me cavity uye kutumira 10% yesimba kubva mu cavity. Panguva imwe chete, birefringent Lyot filter inoumbwa ne polarization-maintaining optical fiber iri pakati pe polarization controllers mbiri ne polarizer, iyo inoita basa rekusefa spectral wavelengths.
3. Ruzivo rwemashure
Parizvino, kune nzira mbiri huru dzekuwedzera simba rekurova kwema pulse e-pulsed lasers. Imwe nzira ndeyekuderedza zvakananga mhedzisiro isiri yemutsara, kusanganisira kuderedza simba repamusoro rekurova kuburikidza nenzira dzakasiyana-siyana, dzakadai sekushandisa manejimendi yekupararira kwema stretched pulses, giant chirped oscillators, uye beam-splitting pulsed lasers, nezvimwewo. Imwe nzira ndeyekutsvaga nzira itsva dzinogona kutsungirira kuunganidzwa kwechikamu chisina mutsara, senge self-similarity uye rectangular pulses. Nzira yataurwa pamusoro apa inogona kubudirira kuwedzera simba rekurova kwema pulse relaser inoputikakune makumi emakumi e nanojoules. Dissipative soliton resonance (Dissipative soliton resonance: DSR) inzira yekugadzira rectangular impulse yakatanga kutaurwa naN. Akhmediev et al. muna 2008. Hunhu hwe dissipative soliton resonance pulses ndehwekuti, nepo ichiramba iine amplitude yakafanana, pulse width nesimba re non-wave splitting rectangular pulse zvinowedzera monotonical nekuwedzera kwesimba repombi. Izvi, kusvika pamwero wakati, zvinoputsa muganho wetsika soliton theory pa single-pulse energy. Dissipative soliton resonance inogona kuwanikwa nekuvaka saturated absorption uye reverse saturated absorption, senge nonlinear polarization rotation effect (NPR) uye nonlinear fiber ring mirror effect (NOLM). Mishumo mizhinji pamusoro pekugadzirwa kwe dissipative soliton resonance pulses yakavakirwa pamaitiro maviri aya emode-locking.
Nguva yekutumira: Gumiguru-09-2025