Ko te EDFA (Erbium-doped Fiber Amplifier), i hangaia tuatahitia i te tau 1987 mō te whakamahinga arumoni, koia te whakakaha whatu e whakamahia ana i roto i te pūnaha DWDM e whakamahi ana i te muka Erbium-doped hei reo whakakaha whatu hei whakarei tika i ngā tohu. Ka taea te whakakaha tere mō ngā tohu me ngā roangaru maha, i roto i ngā roopu e rua. Ko tētahi ko te Tikanga, ko te roopu-C rānei, tata ki te 1525 nm ki te 1565 nm, ā, ko tētahi ko te roopu-L rānei, tata ki te 1570 nm ki te 1610 nm. I taua wā, e rua ngā roopu papu e whakamahia whānuitia ana, ko te 980 nm me te 1480 nm. He nui ake te wāhanga mimiti o te roopu 980nm e whakamahia ana i roto i te tono haruru iti, ko te roopu 1480nm he iti ake engari he whānui ake te wāhanga mimiti e whakamahia whānuitia ana mō ngā whakakaha kaha teitei.
E whakaatu ana te pikitia e whai ake nei i te āhua o te whakarei ake a te whakakaha EDFA i ngā tohu. Ina mahi te whakakaha EDFA, ka tukuna he reera papu me te 980 nm, 1480 nm rānei. Kia puta te reera papu me ngā tohu whakauru mā te hononga, ka whakareatia ki runga i te muka kua tāpirihia ki te Erbium. Mā te taunekeneke me ngā iona tāpiri, ka taea te whakatutuki i te whakanui tohu. Ehara i te mea ka whakaitihia te utu e tēnei whakakaha whatu katoa, engari ka whakapai ake hoki i te pai o te whakanui tohu whatu. I roto i te poto, ko te whakakaha EDFA he tohu nui i roto i te hītori o ngā muka whatu ka taea te whakanui tika i ngā tohu me ngā roangaru maha i runga i te muka kotahi, kaua ki te whakanui tohu whatu-hiko-whatu.
Kei roto i te "Silicon Valley" o Haina a Beijing Rofea Optoelectronics Co, Ltd – Beijing Zhongguancun, he umanga hangarau-teitei e whakatapua ana ki te mahi ki ngā whare rangahau ā-rohe me tāwāhi, ngā whare rangahau, ngā whare wānanga me ngā kaimahi rangahau pūtaiao hinonga. Ko te nuinga o tā mātou kamupene e mahi ana i roto i te rangahau me te whanaketanga motuhake, te hoahoa, te hanga, te hoko i ngā hua optoelectronic, me te whakarato i ngā otinga auaha me ngā ratonga ngaio, whaiaro mō ngā kairangahau pūtaiao me ngā miihini ahumahi. Whai muri i ngā tau o te auahatanga motuhake, kua hangaia he raupapa hua photoelectric whai rawa me te tino pai, e whakamahia whānuitia ana i roto i ngā umanga ā-rohe, hōia, kawe waka, hiko hiko, pūtea, mātauranga, hauora me ētahi atu. He painga nui i roto i te umanga, pēnei i te whakaritenga, te momo, ngā whakaritenga, te tino pai, te ratonga pai. Ā, i te tau 2016 i toa i te tiwhikete hinonga hangarau-teitei o Beijing, he maha ngā tiwhikete patent, he kaha kaha, he hua e hokona ana i ngā mākete o te kāinga me tāwāhi, me tana mahi pumau, pai ake hei toa i te whakamoemiti a ngā kaiwhakamahi i te kāinga me tāwāhi!
Wā tuku: Maehe-29-2023