Ko te whakatinanatanga o te whakawhitiwhiti kōrero muka whatu e hangai ana i te mātāpono o te whakaata katoa o te mārama.
Ina horapa te mārama ki waenganui o te muka whatu, ka teitei ake te taupū whakaata n1 o te matua muka i tērā o te uhi n2, ā, ka iti iho te ngaronga o te matua i tērā o te uhi, nō reira ka whakaata katoa te mārama, ā, ko tōna kaha mārama ka tukuna i roto i te matua. Nā te whakaata katoa, ka taea te tuku i te mārama mai i tētahi pito ki tētahi pito.
Whakarōpūtia e te aratau tuku: aratau kotahi me te aratau maha.
He iti te whānui o te matua o te aratau kotahi, ā, ka taea anake te tuku i ngā ngaru mārama o te aratau kotahi.
He nui te whānui o te matua o te muka whatu maha-aratau, ā, ka taea e ia te tuku ngaru mārama i ngā momo maha.
Ka taea hoki e tātou te wehewehe i te muka whatu aratau-kotahi mai i te muka whatu aratau-maha mā te tae o te āhua.
Ko te nuinga o ngā muka whatu aratau-kotahi he koti kōwhai me te hononga kikorangi, ā, ko te matua taura he 9.0 μm. E rua ngā roangaru pokapū o te muka aratau-kotahi: 1310 nm me te 1550 nm. Ko te 1310 nm te tikanga e whakamahia ana mō te tuku tawhiti-poto, tawhiti-waenga, tawhiti-roa rānei, ā, ko te 1550 nm te whakamahinga mō te tuku tawhiti-roa me te tawhiti-tino-roa. Ko te tawhiti tuku e whakawhirinaki ana ki te kaha tuku o te kōwae whatu. Ko te tawhiti tuku o te tauranga aratau-kotahi 1310 nm he 10 km, 30 km, 40 km, me ētahi atu, ā, ko te tawhiti tuku o te tauranga aratau-kotahi 1550 nm he 40 km, 70 km, 100 km, me ētahi atu.
Ko te nuinga o ngā muka whatu maha-aratau he koti karaka/hina, he hononga pango/parauri, he 50.0 μm me te 62.5 μm ngā matua. Ko te roanga ngaru waenga o te muka maha-aratau he 850 nm te nuinga. He poto noa te tawhiti tuku o te muka maha-aratau, i roto i te 500 m te nuinga.
Te wā tuku: 17-Pepuere-2023