Indlela yokusebenzisa i-semiconductor optical amplifier

Indlela yokusebenzisa i-i-semiconductor optical amplifier(SOA) imi kanje:

I-SOA semiconductor optical amplifier isetshenziswa kabanzi kuzo zonke izigaba zokuphila. Enye yezimboni ezibaluleke kakhulu ezokuxhumana, ebaluleke kakhulu ekuthuthweni nasekushintsheni.I-SOA semiconductor optical amplifieriphinde isetshenziselwe ukuthuthukisa noma ukukhulisa ukuphuma kwesiginali yokuxhumana kwe-fiber optical ebangeni elide futhi iyisikhulisamazwi esibaluleke kakhulu.

Izinyathelo eziyisisekelo zokusebenzisa

Khetha ezifaneleI-SOA Optical amplifier: Ngokusekelwe kuzimo ezithile zohlelo lokusebenza kanye nezidingo, khetha i-SOA Optical amplifier enamapharamitha afanelekile afana nobude begagasi obusebenzayo, ukuzuza, amandla okukhipha agcwele, kanye nenani lomsindo. Isibonelo, ezinhlelweni zokuxhumana ezibonakalayo, uma ukukhulisa isignali kuzokwenziwa kubhendi engu-1550nm, i-SOA optical amplifier enobude obusebenzayo obuseduze nalolu bubanzi idinga ukukhethwa.

Xhuma indlela yokubona: Xhuma ukuphela kokufaka kwe-SOA semiconductor optical amplifier kumthombo wesignali optical odinga ukukhuliswa, bese uxhuma ukuphela kokuphumayo kumzila we-optical olandelayo noma idivayisi ye-optical. Uma uxhuma, qaphela ukusebenza kahle kokuhlanganisa kwe-fiber optical bese uzama ukunciphisa ukulahlekelwa kokubona. Amadivayisi afana ne-fiber optic couplers nama-optical isolator angasetshenziswa ukuthuthukisa ukuxhumeka kwendlela yokubona.

Setha i-bias current: Lawula inzuzo ye-SOA amplifier ngokulungisa i-bias current yayo. Ngokuvamile, ukuchema okukhulu kwamanje, inzuzo ephezulu, kodwa ngesikhathi esifanayo, ingase iholele ekwandeni komsindo kanye nezinguquko kumandla okukhiphayo agcwele. Inani lamanje lokuchema elifanele lidinga ukutholwa ngokusekelwe ezidingweni zangempela kanye nemingcele yokusebenza yeI-amplifier ye-SOA.

Ukuqapha nokulungiswa: Phakathi nenqubo yokusetshenziswa, kuyadingeka ukuqapha amandla optical okukhiphayo, inzuzo, umsindo kanye neminye imingcele ye-SOA ngesikhathi sangempela. Ngokusekelwe emiphumeleni yokuqapha, i-bias current kanye neminye imingcele kufanele ilungiswe ukuze kuqinisekiswe ukusebenza okuzinzile kanye nekhwalithi yesignali ye-SOA semiconductor optical amplifier.

Ukusetshenziswa ezimweni ezahlukene zohlelo lokusebenza

Isistimu yokuxhumana ye-Optical

I-amplifier yamandla: Ngaphambi kokuba isignali ye-optical idluliselwe, i-SOA semiconductor optical amplifier ibekwe ekugcineni kokudlulisa ukuze kwandiswe amandla esignali ye-optical nokwandisa ibanga lokudlulisela uhlelo. Isibonelo, ekuxhumaneni okude kwe-fiber optical, ukukhulisa amasignali optical ngokusebenzisa i-SOA semiconductor optical amplifier kunganciphisa inani leziteshi zokudlulisa.

I-amplifier yomugqa: Emigqeni yokudlulisa amehlo, i-SOA ibekwe ngezikhathi ezithile ukuze kunxeshezelwe ukulahlekelwa okubangelwa i-fiber attenuation nezixhumi, iqinisekisa ikhwalithi yezimpawu ze-optical ngesikhathi sokudlulisa ibanga elide.

I-Preamplifier: Ekupheleni kokwamukela, i-SOA ibekwa phambi komamukeli obonakalayo njengesandulela ukuze kuthuthukiswe ukuzwela komamukeli kanye nokuthuthukisa amandla ayo okuthola amasignali abonakalayo abuthakathaka.

2. Isistimu yokuzwa ye-Optical

Ku-demodulator ye-fiber Bragg grating (FBG), i-SOA ikhuphula isignali yokubona ku-FBG, ilawula ukuqondiswa kwesignali yokubona nge-circulator, futhi izwa izinguquko ubude beza noma isikhathi sesignali yokubona okubangelwa ukuhlukahluka kwezinga lokushisa noma ubunzima. Ekutholeni ukukhanya nokusukela (LiDAR), i-narrowband SOA optical amplifier, uma isetshenziswa ngokuhambisana namalaser e-DFB, inganikeza amandla aphezulu okukhiphayo ukuze kutholwe ibanga elide.

3. Ukuguqulwa kwe-wavelength

Ukuguqulwa kwe-Wavelength kufinyelelwa ngokusebenzisa imiphumela engaqondile efana ne-cross-gain modulation (XGM), i-cross-phase modulation (XPM), kanye ne-four-wave mixing (FWM) ye-SOA optical amplifier. Isibonelo, ku-XGM, ibhande lokukhanya legagasi elibuthakathaka eliqhubekayo kanye nensimbi yokukhanya yepompo eqinile kujovwa kanyekanye ku-SOA optical amplifier. Iphampu ishintshiwe futhi isetshenziswa ekukhanyeni kokutholwa nge-XGM ukuze kuzuzwe ukuguqulwa kwe-wavelength.

4. I-Optical pulse generator

Kuzixhumanisi zokuxhumana eziphindaphindwayo ze-OTDM ze-wavelength zesivinini esikhulu, ama-lasers endandatho ekhiyiwe ye-fiber aqukethe i-SOA optical amplifier asetshenziselwa ukukhiqiza izinga eliphezulu lokuphindaphinda ama-wavelength-tunable pulses. Ngokulungisa amapharamitha afana ne-bias current ye-SOA amplifier kanye ne-modulation frequency ye-laser, ukukhishwa kwe-optical pulses yama-wavelengths ahlukene kanye namaza okuphindaphinda angafinyelelwa.

5. Ukubuyiselwa kwewashi lokubuka

Kuhlelo lwe-OTDM, iwashi litholwa kumasiginali we-optical wesivinini esikhulu ngokusebenzisa izihibe ezikhiywe ngesigaba kanye namaswishi okubona asetshenziswa ngokususelwe ku-SOA amplifier. Isignali yedatha ye-OTDM ihlanganiswe nesibuko sendandatho ye-SOA. Ukulandelana kwe-optical control pulse okukhiqizwa i-laser ekhiywe yemodi elungisekayo kushayela isibuko esiyindayo. Isignali ephumayo yesibuko esiyindandatho itholwa yi-photodiode. Imvamisa ye-oscillator elawulwa yi-voltage (VCO) ikhiyiwe kumvamisa eyisisekelo yesiginali yedatha yokufaka ngokusebenzisa iluphu evalwe ngesigaba, ngaleyo ndlela kuzuzwe ukululama kwewashi lokubuka.