Isikhulisi se-semiconductor optical esithuthukisiwe

Kuthuthukisiwei-semiconductor optical amplifier

I-semiconductor optical amplifier ethuthukisiwe iyinguqulo ethuthukisiwe ye-semiconductor optical amplifier (I-SOA Optical amplifier). Kuyi-amplifier esebenzisa ama-semiconductors ukuze anikeze indlela yokuzuza. Isakhiwo sawo sifana nese-Fabry-Pero laser diode, kodwa ngokuvamile ubuso bokugcina bumbozwe ngefilimu ephikisana ne-reflection. Idizayini yakamuva ihlanganisa amafilimu amelene ne-reflection kanye namagagasi athambekele nezifunda zamawindi, ezinganciphisa ukubonakala kobuso bokuphela kube ngaphansi kuka-0.001%. Ama-amplifiers optical athuthukisiwe asebenza kahle kakhulu awusizo ikakhulukazi lapho ekhulisa amasignali (i-optical), njengoba kukhona usongo olukhulu lokulahlekelwa kwesignali phakathi nokudluliswa kwebanga elide. Njengoba isignali ye-optical ikhuliswa ngokuqondile, indlela evamile yokuyiguqula ibe isignali kagesi ngaphambi kokuba ibe yinto engasebenzi. Ngakho-ke, ukusetshenziswa kweI-SOAkuthuthukisa kakhulu ukusebenza kahle kokudlulisela. Lobu buchwepheshe buvame ukusetshenziselwa ukuhlukaniswa kwamandla kanye nesinxephezelo sokulahlekelwa kumanethiwekhi e-WDM.

Izimo zohlelo lokusebenza

Ezinhlelweni zokuxhumana ze-fiber optical, ama-amplifiers optical semiconductor (SOA) angasetshenziswa ezindaweni eziningi zokufaka isicelo ukuze kuthuthukiswe ukusebenza kanye nebanga lokudlulisa uhlelo lokuxhumana. Okulandelayo ezinye izinhlelo zokusebenza ezijwayelekile zokusebenzisa i-SOA amplifier ezinhlelweni zokuxhumana zefiber optical:

I-preamplifier: SOAi-optical amplifieringasetshenziswa njenge-preamplifier ekupheleni kokwamukela optical ezinhlelweni zokuxhumana zebanga elide ezinemicu yokubona eyedlula amakhilomitha ayi-100, ithuthukisa noma ikhulise amandla okukhipha isignali ezinhlelweni zokuxhumana ze-optical fiber ezikude, ngaleyo ndlela kunxeshezelwe ibanga elinganele lokudlulisela elibangelwa ukuphuma okubuthakathaka kwamasignali amancane. Ngaphezu kwalokho, i-SOA ingasetshenziswa futhi ekusebenziseni ubuchwepheshe bokuvuselela isignali yenethiwekhi ye-optical network optical fiber communication systems.

Ukuvuselelwa kwesignali ye-All-optical: Kumanethiwekhi okukhanya, njengoba ibanga lokudlulisela likhuphuka, amasignali abonakalayo azowohloka ngenxa yokuncipha, ukuhlakazeka, umsindo, i-jitter yesikhathi kanye ne-crosstalk, njll. Ngakho-ke, ekudluliselweni kwebanga elide, kuyadingeka ukunxephezela amasiginali okubona okonakele ukuze kuqinisekiswe ukunemba kolwazi oludluliswayo. Ukuvuselelwa kwesiginali ye-All-optical ibhekisela ekwandiseni kabusha, ukubunjwa kabusha kanye nokwenza kabusha isikhathi. Ukukhulisa okwengeziwe kungenziwa ngama-amplifiers optical njengama-semiconductor optical amplifiers, EDFA kanye nama-Raman amplifiers (RFA).

Kuzinhlelo zokuzwa i-fiber optical, ama-amplifiers optical semiconductor (I-amplifier ye-SOA) ingasetshenziswa ukukhulisa amasignali okukhanya, ngaleyo ndlela ithuthukise ukuzwela nokunemba kwezinzwa. Okulandelayo ezinye izinhlelo zokusebenza ezijwayelekile zokusebenzisa i-SOA ezinhlelweni zokuzwa i-fiber optical:

Isilinganiso se-Optical fibre strain: Lungisa i-optical fibre entweni okudinga ukulinganiswa ubunzima bayo. Uma into ingaphansi kokucindezeleka, ukuguqulwa kobunzima kuzodala ushintsho oluncane kubude be-fiber optical, ngaleyo ndlela kuguqule ubude bezansi noma isikhathi sesiginali ye-optical kunzwa ye-PD. I-amplifier ye-SOA ingafinyelela ukusebenza okuphezulu kokuzwa ngokukhulisa nokucubungula isignali yokubona.

Isilinganiso sokucindezela kwe-fiber optical: Ngokuhlanganisa ama-optical fibers nezinto ezizwela ukucindezela, lapho into ingaphansi kwengcindezi, izodala izinguquko ekulahlekelweni kwe-optical ngaphakathi kwe-fiber optical. I-SOA ingasetshenziselwa ukukhulisa lesi siginali ye-optical ebuthakathaka ukuze kuzuzwe isilinganiso sokucindezela esibucayi kakhulu.

I-semiconductor optical amplifier SOA iyithuluzi elibalulekile emikhakheni yokuxhumana kwe-fiber optical kanye ne-optical fibre sensing. Ngokukhulisa nokucubungula amasignali abonakalayo, kuthuthukisa ukusebenza kwesistimu nokuzwela kokuzwa. Lezi zinhlelo zokusebenza zibalulekile ukuze kuzuzwe ukuxhumana kwe-fiber optical enesivinini esikhulu, ezinzile futhi ethembekile kanye nokuzwa okunembayo nokusebenza kahle kwe-fiber optical.