A isixhobo sokubona iifotosisixhobo esiguqula imiqondiso yokukhanya ibe yimiqondiso yombane.isixhobo sokubona ifoto se-semiconductor, isithwali esenziwe ngefoto esivuselelwe yi-photon yesiganeko singena kwisekethe yangaphandle phantsi kwe-voltage ye-bias esetyenzisiweyo kwaye senze i-photocurrent elinganisekayo. Nokuba kuphendula kakhulu, i-photodiode ye-pin inokuvelisa kuphela isibini see-electron-hole pairs ubuninzi, esisixhobo esingenanzuzo yangaphakathi. Ukuze siphendule ngakumbi, i-i-photodiode ye-avalanche(apd) ingasetyenziswa.
Isiphumo sokukhulisa i-apd kwi-photocurrent sisekelwe kwisiphumo sokungqubana kwe-ionization. Phantsi kweemeko ezithile, ii-electron ezikhawulezayo kunye nemingxunya zinokufumana amandla aneleyo okungqubana ne-lattice ukuvelisa isibini esitsha see-electron-hole pairs. Le nkqubo yi-chain reaction, ukuze isibini see-electron-hole pairs eziveliswa kukufunxwa kokukhanya zivelise inani elikhulu lee-electron-hole pairs kwaye zenze i-photocurrent enkulu yesibini. Ke ngoko, i-apd inokuphendula okuphezulu kunye nokufumana kwangaphakathi, okuphucula umlinganiselo wesignali-kwingxolo yesixhobo. I-apd iya kusetyenziswa ikakhulu kwiinkqubo zonxibelelwano lwe-optical fiber ezikude okanye ezincinci kunye neminye imida kumandla okukhanya afunyenweyo. Okwangoku, iingcali ezininzi zezixhobo zokukhanya zinethemba elikhulu ngamathuba e-apd.
I-Rofea izenzele ngokuzimeleyo i-photodetector edibeneyo ye-photodiode kunye ne-low noise amplifier circuit, ngelixa ibonelela ngeemveliso ezahlukeneyo, kubasebenzisi bophando lwezenzululwazi. Ibonelela ngenkonzo yokwenza ngokwezifiso imveliso esemgangathweni, inkxaso yobugcisa kunye nenkonzo elula emva kokuthengisa. Umgca wemveliso wangoku uquka: i-analog signal photodetector ene-amplification, i-gain adjustable photodetector,isixhobo sokubona ifoto esinesantya esiphezulu, isixhobo sokubona ikhephu (i-APD), isixhobo sokubona ibhalansi, njl.
Uphawu
Uluhlu lweSpectral：320-1000nm、850-1650nm、950-1650nm、1100-1650nm、1480-1620nm
I-bandwidth ye-3dB：200MHz-50GHz
Imveliso yokudibanisa ifayibha ye-Optical2.5Gbps
Uhlobo lweModulator
I-3dBbandwidt：
200MHz, 1GHz, 10GHz, 20GHz, 50GHz
Isicelo
Ukufunyanwa kwe-pulse ye-optical ngesantya esiphezulu
Unxibelelwano olukhawulezayo lwe-optical
Ikhonkco le-microwave
Inkqubo yokuva ifayibha ye-optical yaseBrillouin
Ixesha lokuthumela: Juni-21-2023