Ngā āhuatanga matua me te ahunga whakamua o te Pūoko Whakaahua tere-tiketike

Ngā āhuatanga matua me ngā ahunga whakamua o nāianeiPūoko Whakaahua tere teitei
I te whanaketanga o te pūtaiao me te hangarau, kua piki ake te tono o te Photodetector tere-teitei (kōwae kimi whatu) i roto i ngā mara maha he whānui haere tonu. Ka whakaurua e tēnei pepa he tere-teitei 10GPūoko Whakaahua(kōwae kimi whatu) e whakauru ana i te photodiode avalanche tere-teitei (APD) me te whakakaha haruru iti, he whakaurunga muka aratau kotahi/aratau-maha, he putanga hononga SMA, ā, he nui te whakanui, he tairongo teitei, he putanga hononga AC, me te whakanui papatahi.

Ka whakamahia e te kōwae te pūoko InGaAs APD me te whānuitanga o te hihi o te 1100~1650nm, he mea e tika ana mō ngā pūnaha tuku muka whatu tere-tiketike me te kimi i te pāoro whatu tere-tiketike. I roto i te ao whakawhitiwhiti whatu, ko te aro me te tere o ngā pūoko whakaahua he tohu mahi nui. Ka eke te aro nui o te kōwae ki te -25dBm, ā, ko te mana whatu kukū ko te 0dBm, e whakarite ana i te tuku raraunga pono i raro i ngā āhuatanga mana whatu iti.
Hei tāpiritanga, kei roto hoki i te kōwae he porowhita whakakaha-mua me te porowhita whakakaha, ka taea te whakaiti i te haruru me te whakapai ake i te ōwehenga tohu ki te haruru. Ka taea e te putanga AC hono te whakaiti i te awe o te wāhanga DC me te whakapai ake i te kounga o te tohu. Mā te āhuatanga papatahi o te whakanui ka taea e te kōwae te whai i te whakanui pumau i ngā roangaru maha, ka pai ake te kounga o te tohu.
I roto i te mara o te tono, e whakamahia ana te kōwae i roto i te kimi pāoro tere-teitei, te whakawhitiwhiti kōrero whatu ātea tere-teitei me te whakawhitiwhiti kōrero muka whatu tere-teitei. I te whanaketanga o te hangarau, kei te piki haere hoki te tono i roto i ēnei mara. Nō reira, he mea nui te whanaketanga me te tono o tēnei kōwae.
Nā te mahi me te whakamahinga o te kōwae, koinei tētahi o ngā mea tino paingā taputapu whakaahua matataukei te mākete i ēnei rā. He āhuatanga ōna o te mahi teitei, te pumau teitei me te pono teitei, ā, ka taea te whakatutuki i ngā hiahia tono o ngā momo mara rerekē. I roto i ngā whanaketanga ā muri ake nei, me te haere tonu o te ahunga whakamua o te hangarau me te whānui tonu o ngā mara tono, ka nui ake te whakamahinga me te whakatairanga i te kōwae.