Me pēhea te whiriwhiri i waenga i te 780nmkaiwhakarerekētanga wāhangame te kaiwhakatikatika kaha?
I roto i te awhe roangaru matua o te 780nm, he tino whai kiko te taunekeneke i waenga i te mārama me te matū – ahakoa ko te whakawhiti rārangi D2 o ngā ngota cesium, ko te whakahaere āhua kuantum rānei o ngā ngota rubidium, he mea tino nui te whakahaere tika o te taiaho i roto i tēnei awhe roangaru. Ko te taputapu matua e whakatutuki ana i tēnei whakahaere ko te modulator electro-optic (Kaiwhakatikatika EOM). I roto i a rātou, ahakoa ko ngākaiwhakarerekētanga wāhanga hiko-whatume te hiko-whatute whakarerekētanga kahaNo te whānau whakarerekētanga hiko-whatu lithium niobate rātou, he pūkenga ahurei ō rātou ake, ā, e mahi ana i ā rātou mahi.
E ai ki te ingoa, ko te kaiwhakatikatika wāhanga hiko whatu he mea aro ki te whakahaere tika i te wāhanga o ngā tohu whatu. He tino māmā tōna hanganga – he arataki ngaru kotahi e honoa ana me ngā irahiko e rua i ngā taha e rua, ā, ka hurihia te taupū whakaata o te karaihe mā te pānga hiko-whatu, ka huri i te wāhanga o te ngaru mārama. Ko te kaiwhakatikatika wāhanga ROF-PM raupapa 780nm e whakamahi ana i te hangarau whakawhiti porotoni matatau, ā, he tino pai ngā āhuatanga pēnei i te ngaronga whakaurunga iti (uara noa 2.8dB), te whānui o te whakawhitinga teitei (10GHz), me te ngaohiko haurua ngaru iti (uara noa 2.0V). Ko te nuinga o te wā e mahi ana ki ngā mara o ngā pūnaha whakawhitiwhiti whatu ātea, te tohutoro wā ngota cesium, te whānui o te hihi, me te ine whakawhiti – i roto i ngā karaka whatu me ngā inenga tika, ko ngā kaiwhakatikatika wāhanga ngā "toa kei muri i ngā whakaaturanga" o te raka auau me te whakaū.
Tete whakarerekētanga kaha hiko-whatuKo te kawenga mō te whakahaere i te kaha (te whānuitanga) o te mārama. E hangai ana ki te hanganga o te ine whakawhiti Mach Zehnder (MZI): ka wehea te tohu whatu kia rua ngā ara, ka uru ki te whakarerekētanga ā-wāhanga, kātahi ka honoa anō, ka tutuki te whakarerekētanga kaha mā roto i ngā pānga pokanoa. Ka whakamahia hoki e te whakarerekētanga kaha raupapa ROF-AM-07 te hangarau whakawhiti pūmua, me te ngaronga whakaurunga iti iho i te 3dB, te ōwehenga whakakorenga pana tae atu ki te 23dB, me te ngaohiko haurua ngaru noa o te 3V anake i te pito RF. Ko ōna tono noa e kapi ana i te whakawhitiwhitinga whatu ātea, ngā whatu irahiko, ngā kaihanga pao, me ētahi atu mara - i roto i ngā whakamātautau mōhiohio irahiko, ka whakamahia pinepine ngā whakarerekētanga kaha ki te "tapahi" i ngā taiaho tonu ki ngā pao whatu taumata nanohekona.
Ka taea te kī ko te kaiwhakatikatika āhua te tohunga e whakapai ana i te āhua o ngā ngaru mārama, ko te kaiwhakatikatika kaha ia te kaiwhakahaere e whakahaere ngāwari ana i te kaha o te mārama. Ka tautokohia e ngā mea e rua tetahi ki tetahi, e tautoko ana i ngā muka hiku kua whakaritea mō te FC/PC me te FC/APC, me te mahi pumau i te whānuitanga pāmahana whānui o te -10 ℃ ~ 60 ℃, e kapi ana i ngā ara whatu whakamātautau maha mai i ngā karaka atomika taketake ki ngā whatu kuantum hou, e whakarato ana i tētahi otinga whakatikatika whatu whakauru mō te rangahau roopu 780nm.
Wā tuku: Pipiri-29-2026