Ingaba kwenzeka njanii-amplifier ye-optical ye-semiconductorukufezekisa ukwandiswa?
Emva kokufika kwexesha lonxibelelwano lwefayibha ye-optical enomthamo omkhulu, itekhnoloji yokukhulisa i-optical iye yaphuhliswa ngokukhawuleza.Izikhulisi ezibonakalayoukwandisa imiqondiso ye-optical yokufaka ngokusekelwe kwimitha evuselelweyo okanye ukusasazeka okuvuselelweyo. Ngokomgaqo osebenzayo, ii-optical amplifiers zinokwahlulwa zibe zii-semiconductor optical amplifiers (I-SOAkunyeizixhobo zokukhulisa iifayibha ezibonakalayo. Phakathi kwabo,ii-amplifier ezibonakalayo ze-semiconductorZisetyenziswa kakhulu kunxibelelwano lwe-optical ngenxa yeenzuzo ze-wide gain band, ukuhlanganiswa okuhle kunye nobubanzi be-wide wavelength. Zenziwe ziingingqi ezisebenzayo nezingasebenziyo, kwaye ummandla osebenzayo ngummandla we-gain. Xa isignali yokukhanya idlula kummandla osebenzayo, ibangela ukuba ii-elektroni zilahlekelwe ngamandla kwaye zibuyele kwimeko yomhlaba ngendlela yee-photons, ezinobude obufanayo nobomqondiso wokukhanya, ngaloo ndlela zikhulisa isignali yokukhanya. I-semiconductor optical amplifier iguqula i-semiconductor carrier ibe yi-reverse particle yi-driving current, yandisa i-implitude ye-implitude ye-implitude ye-implitude ye-implitude ye-implitude, kwaye igcina iimpawu ezisisiseko zomzimba ze-implitude seed light ezifana ne-polarization, ububanzi bomgca kunye ne-frequency. Ngokunyuka kwe-working current, amandla e-optical ephumayo nawo ayanda kubudlelwane obuthile bokusebenza.
Kodwa olu kukhula alunamida, kuba ii-amplifier ze-semiconductor optical zine-gain saturation phenomenon. Le meko ibonisa ukuba xa amandla okukhanya okufakwayo engaguqukiyo, i-gain iyanda ngokunyuka koxinzelelo lwe-carrier efakweyo, kodwa xa uxinzelelo lwe-carrier efakweyo lukhulu kakhulu, i-gain iya kugcwala okanye inciphe. Xa uxinzelelo lwe-carrier efakweyo luhlala luhleli, amandla okukhupha ayanda ngokunyuka kwamandla okufakayo, kodwa xa amandla okukhanya okufakwayo aphezulu kakhulu, izinga lokusetyenziswa kwe-carrier elibangelwa yi-excited radiation likhulu kakhulu, okubangela i-gain saturation okanye i-decline. Isizathu se-gain saturation phenomenon kukunxibelelana phakathi kwee-electron kunye nee-photons kwizixhobo zengingqi esebenzayo. Nokuba zii-photons eziveliswa kwi-gain medium okanye ii-photons zangaphandle, izinga apho i-stimulated radiation idla khona abathwali linxulumene nesantya apho abathwali bazalise khona kwinqanaba lamandla elihambelanayo ngexesha. Ukongeza kwi-stimulated radiation, izinga le-carrier elisetyenziswa zezinye izinto nalo liyatshintsha, nto leyo echaphazela kakubi i-gain saturation.
Ekubeni umsebenzi obalulekileyo wee-amplifier ze-semiconductor optical kukukhulisa okuthe ngqo, ikakhulu ukufezekisa ukukhulisa, ingasetyenziswa njengee-amplifier zamandla, ii-amplifier zomgca kunye nee-preamplifiers kwiinkqubo zonxibelelwano. Kwisiphelo sokudlulisa, i-amplifier ye-semiconductor optical isetyenziswa njenge-amplifier yamandla ukuphucula amandla okukhupha kwisiphelo sokudlulisa senkqubo, nto leyo enokunyusa kakhulu umgama we-relay we-trunk yenkqubo. Kumgca wokudlulisa, i-amplifier ye-semiconductor optical ingasetyenziswa njenge-amplifier ye-linear relay, ukuze umgama we-relay ovuselelayo wokudlulisa ungolulwa kwakhona ngokugqithisa okukhulu. Kwisiphelo sokwamkela, i-amplifier ye-semiconductor optical ingasetyenziswa njenge-preamplifier, enokuphucula kakhulu uvakalelo lommkeli. Iimpawu ze-gain saturation zee-amplifier ze-semiconductor optical ziya kubangela ukuba i-gain per bit ihambelane nolandelelwano lwe-bit yangaphambili. Isiphumo sepateni phakathi kweetshaneli ezincinci sinokubizwa ngokuba yi-cross-gain modulation effect. Le ndlela isebenzisa i-avareji yezibalo ye-cross-gain modulation effect phakathi kweetshaneli ezininzi kwaye yazisa i-medium intensity continuous wave kwinkqubo yokugcina i-beam, ngaloo ndlela icinezele i-total gain ye-amplifier. Emva koko i-cross-gain modulation effect phakathi kweetshaneli iyancitshiswa.
Ii-amplifier ze-Semiconductor optical zinesakhiwo esilula, kulula ukuzidibanisa, kwaye zinokukhulisa imiqondiso ye-optical yee-wavelengths ezahlukeneyo, kwaye zisetyenziswa kakhulu ekuhlanganiseni iintlobo ezahlukeneyo zee-laser. Okwangoku, itekhnoloji yokudibanisa i-laser esekelwe kwii-amplifier ze-semiconductor optical iyaqhubeka nokuvuthwa, kodwa kusafuneka kwenziwe imizamo kwezi nkalo zintathu zilandelayo. Enye kukunciphisa ilahleko yokudibanisa ne-optical fiber. Ingxaki ephambili ye-amplifier ye-semiconductor optical kukuba ilahleko yokudibanisa ne-fiber inkulu. Ukuze kuphuculwe ukusebenza kakuhle kokudibanisa, ilensi ingongezwa kwinkqubo yokudibanisa ukunciphisa ilahleko yokubonakalisa, ukuphucula ulungelelwaniso lwe-beam, kunye nokufezekisa ukuhlanganiswa okusebenzayo okuphezulu. Eyesibini kukunciphisa i-polarization sensitivity yee-amplifier ze-semiconductor optical. Uphawu lwe-polarization lubhekisa ikakhulu kwi-polarization sensitivity yokukhanya kwesiganeko. Ukuba i-amplifier ye-semiconductor optical ayicutshungulwanga ngokukodwa, i-bandwidth esebenzayo ye-gain iya kuncitshiswa. Ulwakhiwo lwe-quantum well lunokuphucula ngokufanelekileyo uzinzo lwee-amplifier ze-semiconductor optical. Kunokwenzeka ukufunda isakhiwo se-quantum well esilula nesigqwesileyo ukunciphisa i-polarization sensitivity yee-amplifier ze-semiconductor optical. Eyesithathu kukuphucula inkqubo edibeneyo. Okwangoku, ukuhlanganiswa kwee-amplifier ze-semiconductor optical kunye nee-laser kunzima kakhulu kwaye kunzima ekucutshungulweni kobugcisa, okubangela ilahleko enkulu ekudlulisweni kwesignali ye-optical kunye nokulahleka kokufakwa kwesixhobo, kwaye iindleko ziphezulu kakhulu. Ke ngoko, kufuneka sizame ukuphucula ulwakhiwo lwezixhobo ezidibeneyo kwaye siphucule ukuchaneka kwezixhobo.
Kwiteknoloji yonxibelelwano lwe-optical, iteknoloji yokukhulisa i-optical yenye yetekhnoloji ezixhasayo, kwaye iteknoloji ye-semiconductor optical amplifier ikhula ngokukhawuleza. Okwangoku, ukusebenza kwee-amplifier ze-semiconductor optical kuye kwaphucuka kakhulu, ngakumbi kuphuhliso lwetekhnoloji ye-optical yesizukulwana esitsha efana ne-wavelength division multiplexing okanye i-optical switching modes. Ngophuhliso lweshishini lolwazi, itekhnoloji yokukhulisa i-optical efanelekileyo kwiibhendi ezahlukeneyo kunye nezicelo ezahlukeneyo iya kwaziswa, kwaye uphuhliso kunye nophando lwetekhnoloji entsha ngokuqinisekileyo luya kwenza itekhnoloji ye-amplifier ye-optical ye-semiconductor iqhubeke nophuhliso kunye nokuchuma.
Ixesha leposi: Februwari-25-2025