TeKaiwhakahaere Mach-Zehnder(MZ Modulator) he taputapu nui mō te whakarerekē i ngā tohu whatu i runga i te kaupapa whakararuraru. Ko tōna kaupapa mahi penei: I te peka āhua-Y i te pito whakauru, ka wehea te mārama whakauru kia rua ngā ngaru mārama ka uru ki ngā hongere whatu whakarara e rua mō te tuku. He mea hanga te hongere whatu ki ngā rauemi hiko-whatu. Mā te whakamahi i tōna pānga whakaahua-hiko, ina huri te tohu hiko e whakamahia ana i waho, ka taea te whakarerekē i te taupū whakaata o tōna ake rauemi, ka hua ake he rerekētanga ara whatu rerekē i waenga i ngā hihi mārama e rua e tae atu ana ki te peka āhua-Y i te pito putanga. Ina tae ngā tohu whatu i roto i ngā hongere whatu e rua ki te peka āhua-Y i te pito putanga, ka puta te huihuinga. Nā te rerekētanga o ngā whakaroa ā-wāhanga o ngā tohu whatu e rua, ka puta te whakararuraru i waenga i a rātou, ka huri i ngā mōhiohio rerekētanga ā-wāhanga e kawea ana e ngā tohu whatu e rua ki ngā mōhiohio kaha o te tohu putanga. Nō reira, ka taea te whakatutuki i te mahi whakarerekē i ngā tohu hiko ki runga i ngā kaikawe whatu mā te whakahaere i ngā tawhā rerekē o te ngaohiko uta o te modulator March-Zehnder.
Ngā tawhā taketake oMZ Modulator
Ka pā tika ngā tawhā taketake o te MZ Modulator ki te mahi a te modulator i roto i ngā horopaki tono maha. I roto i ēnei, ko ngā tawhā whatu me ngā tawhā hiko nui koia ēnei.
Ngā tawhā whatu:
(1) Whānuitanga whatu (whānuitanga 3db): Ko te whānuitanga auau ina heke te kaha urupare auau mā te 3db mai i te uara mōrahi, ko te waeine ko Ghz. Ko te whānuitanga whatu e whakaata ana i te whānuitanga auau o te tohu ina mahi noa te modulator, ā, he tawhā hei ine i te kaha kawe mōhiohio o te kaikawe whatu i roto i tekaiwhakarerekē hiko-whatu.
(2) Ōwehenga mate: Ko te ōwehenga o te mana whatu mōrahi e tukuna ana e te kaiwhakatikatika hiko-whatu ki te mana whatu iti rawa, me te waeine o te dB. Ko te ōwehenga mate he tawhā hei aromatawai i te kaha pana hiko-whatu o te kaiwhakatikatika.
(3) Ngaronga whakahoki: Ko te ōwehenga o te mana mārama whakaata i te pito whakauru o tekaiwhakarerekēki te mana rama whakauru, me te waeine o te dB. Ko te ngaronga whakahoki he tawhā e whakaata ana i te mana taupatupatu e whakaatahia ana ki te pūtake tohu.
(4) Ngaronga whakaurunga: Ko te ōwehenga o te mana whatu putanga ki te mana whatu whakaurunga o te modulator ina tae ki tōna mana putanga mōrahi, ko te waeine ko dB. Ko te ngaronga whakaurunga he tohu e ine ana i te ngaronga mana whatu i puta mai i te whakaurunga o te ara whatu.
(5) Mana whatu whakauru mōrahi: I te whakamahinga noa, me iti iho te mana whatu whakauru o te MZM Modulator i tēnei uara hei ārai i te kino o te taputapu, ko te waeine he mW.
(6) Te hohonutanga o te whakarerekētanga: E pā ana ki te ōwehenga o te kaha o te tohu whakarerekētanga ki te kaha o te kaikawe, e whakaatuhia ana i te ōrau.
Ngā tawhā hiko:
Ngaohiko haurua-ngaru: E pā ana ki te rerekētanga ngaohiko e hiahiatia ana kia taea ai e te ngaohiko taraiwa te whakawhiti i te modulator mai i te āhua whakaweto ki te āhua whakakā. Ka rerekē tonu te mana whatu putanga o te MZM Modulator me te huringa o te ngaohiko piro. Ina whakaputa te putanga modulator i te rerekētanga wāhanga 180-tohu, ko te rerekētanga o te ngaohiko piro e rite ana ki te pūwāhi iti tata me te pūwāhi mōrahi ko te ngaohiko haurua-ngaru, me te waeine o V. Ka whakatauhia tēnei tawhā e ngā āhuatanga pēnei i te rauemi, te hanganga me te tukanga, ā, he tawhā ā-roto oKaiwhakahaere MZM.
(2) Te ngaohiko pīanga DC mōrahi: I te whakamahinga noa, me iti iho te ngaohiko pīanga whakauru o MZM i tēnei uara hei ārai i te kino o te taputapu. Ko te waeine ko V. Ka whakamahia te ngaohiko pīanga DC hei whakahaere i te āhua pīanga o te modulator hei whakatutuki i ngā whakaritenga modulation rerekē.
(3) Te uara tohu RF mōrahi: I te whakamahinga noa, me iti iho te tohu hiko RF whakauru o te MZM i tēnei uara hei ārai i te kino o te taputapu. Ko te waeine ko V. Ko te tohu auau reo irirangi he tohu hiko hei whakarerekē ki runga i tētahi kaikawe whatu.
Wā tuku: Pipiri-16-2025