Ngā āhuatanga oWhakakaha EDFA
He tino rite te kaupapa mahi a ngā whakakaha muka ki tērā o ngā taiaho totoka. Ko ngā taumata pūngao e tika ana, te mimiti me te whakanui i ngā hihi o ngā katote erbium (Er³⁺) i roto i ngā muka whatu kuata e whakaaturia ana i te Pikitia 2. Mā ngā āhuatanga kore-āhua o te kuata ka whānui ake ngā taumata pūngao o ngā katote erbium ki ngā roopu, ā, he maha ngā whakawhiti ka taea te whakamahi hei papu i ngā katote erbium, ko ngā roangaru papu tino whai hua ko te 980 nm me te 1480 nm.
Ko te roanga ngaru mahi o te Whakakaha EDFA kei roto tonu i te awhe roanga ngaru tino pai o te 1330-1600nm mō te whakawhitiwhiti muka whatu. Kua whānuitia te whakamahi i te Whakakaha EDFA e mahi ana i te roopu-C (1530-1565nm) me te matapihi ngaronga muka iti rawa. Hei whakamahi katoa i ngā rauemi roanga o ngā muka whatu, e whakapau kaha ana te tangata ki te whakawhanake i ngā EDFA i te roopu-L (1570-1610nm). Kei te hiku o te whānuitanga whakanui EDFA te roopu-L, nō reira me whakamahi ngā EDFA roopu-L i ngā muka roa ake me te kaha papu teitei ake, me whakamahi rānei i ngā muka tino tāpirihia.
Whakakaha Whatu EDFAHe nui te pikinga (neke atu i te 30-50dB) ā, he whānui te pikinga e whakaratohia ana i runga i te whānuitanga o te auau (tae atu ki te 30nm), he pai mō te whakanui i ngā tohu i roto i ngā hongere whatu maha, inā koa i roto i ngā pūnaha whakarea wehenga roangaru matotoru (DWDM). He iti te haruru (4-8dB), e tata ana ki te rohe matū. Ina whakamahia ki ngā pūnaha WDM, ka whakaitihia te whakawhitiwhiti kōrero i waenga i ngā hongere, ā, ka taea te whakarōpū i ngā whakakaha maha. He nui te mana putanga saturation (10-20 dBm), ka taea te whakamahi hei whakakaha mana i muri i te tuku hei whakanui ake i te tawhiti tuku, i te maha rānei o ngā pona whatu kua tohaina me te kore he raina tuku. He iti te mana papu e hiahiatia ana (tekau milliwatts). Kāore te pikinga e pā ana ki te āhua polarization o te muka, nō reira he pai te pumau. He ngāwari ki te hono atu ki ngā muka whatu tuku, he iti te mate hononga (<1dB). Haunga te pūtake papu, EDFAWhakakaha Whatuhe mea tito mai i ngā wāhanga kore mahi. Nō reira, ki te whakaritea ki ngā whakawhiti hiko whakaora uaua, utu nui hoki, ka tino heke te utu o te pūnaha, ā, ka pai ake te pono.
Hei tāpiritanga, ko ngā āhuatanga whakanui oEDFAKāore ngā whakakaha i te rerekētanga o te tere moka o te pūnaha me te whakatakotoranga raraunga, nō reira ka taea e ia te whakakaha me te tuku i ngā mōhiohio matihiko me ngā mōhiohio anaro. Ko ngā ngoikoretanga o te whakakaha muka erbium kua tāpirihia: he rahi nui; Kāore e roa te roa o te ora o te pūtake papu; Kāore e taea te whakauru atu ki ētahi atu taputapu, e whakawhāiti ana i te tono owhakakaha muka kua tāpirihia ki te erbiumi roto i te whakaurunga optoelectronic (OEIC). Hei tāpiri, ko te whānuitanga whakanui o te EDFA Amplifier e kapi ana i tētahi wāhanga noa iho o te matapihi ngaronga iti o te muka aratau-kotahi quartz, e whakawhāiti ana i te maha o ngā hongere roangaru ka taea e te muka te whakauru, koinei anō hoki tōna ngoikoretanga.
Wā tuku: 28 Paenga-whāwhā 2026