Basa remutete firimu re lithium niobate mukatielectro-optic modulator
Kubva pakutanga kweindastiri kusvika ikozvino, kukwanisa kwe-single-fiber kutaurirana kwakawedzera nemamiriyoni enguva, uye nhamba shomanana yekutsvakurudza yakapfuura makumi emamiriyoni enguva. Lithium niobate yakaita basa rakakura pakati peindasitiri yedu. Mumazuva ekutanga e optical fiber communication, iyo modulation ye optical signal yakanyatsogadziriswa panelaser. Iyi modhi ye modulation inogamuchirwa mune yakaderera bandwidth kana pfupi daro maapplication. Kune yakakwirira-kumhanya modulation uye kureba maapplication, pachave isina kukwana bandwidth uye nzira yekufambisa inodhura zvakanyanya kusangana neakareba maapplication.
Pakati pe optical fiber communication, iyo signal modulation inokurumidza uye inokurumidza kusangana nekuwedzera kwehutano hwekutaurirana, uye optical signal modulation mode inotanga kupatsanurwa, uye maitiro akasiyana-siyana ekugadzirisa anoshandiswa mupfupi-kure networking uye kure-kure trunk networking. Yakaderera-inodhura yakananga modulation inoshandiswa mupfupi-kure networking, uye yakaparadzana "electro-optic modulator" inoshandiswa kure-kure trunk networking, iyo yakaparadzaniswa kubva kune laser.
Electro-optic modulator inoshandisa Machzender kupindira chimiro kugadzirisa chiratidzo, mwenje ndeye electromagnetic wave, electromagnetic wave yakagadzikana kupindira inoda yakagadzikana kudzora frequency, chikamu uye polarization. Isu tinowanzo taura izwi, rinonzi interference fringes, light and dark fringes, kupenya inzvimbo inokwidziridzwa kukanganiswa kwemagetsi, rima inzvimbo iyo kupindira kwemagetsi kunoita kuti simba ripere simba. Mahzender interference imhando ye interferometer ine special structure, inova iyo yekukanganisa inodzorwa nekudzora chikamu chedanda rimwe chete mushure mekutsemura danda. Mune mamwe mazwi, mhedzisiro inogona kudzorwa nekudzora chikamu chekupindira.
Lithium niobate chinhu ichi chinoshandiswa mu optical fiber communication, kureva kuti, inogona kushandisa voltage level (yemagetsi chiratidzo) kudzora chikamu chechiedza, kuti iwane modulation yechiratidzo chechiedza, inova hukama pakati pe electro-optical modulator uye lithium niobate. Yedu modulator inodaidzwa kuti electro-optic modulator, inoda kufunga nezve kuvimbika kwechiratidzo chemagetsi uye nemhando yemodulation yechiratidzo chemaziso. Iyo yemagetsi chiratidzo chesimba ye indium phosphide uye silicon photonics iri nani pane iyo yelithium niobate, uye iyo optical chiratidzo chesimba ishoma asi inogona kushandiswa zvakare, iyo inogadzira nzira nyowani yekubata mukana wemusika.
Kuwedzera kune avo akanakisa emagetsi emagetsi, indium phosphide uye silicon photonics ine zvakanakira miniaturization uye kusanganisa iyo lithium niobate haina. Indium phosphide idiki pane lithium niobate uye ine yakakwira dhigirii yekubatanidza, uye silicon photons idiki pane indium phosphide uye ine yakakwirira yekubatanidza dhigirii. Musoro we lithium niobate seamodulatoryakapetwa kaviri senge indium phosphide, uye inogona kungova modulator uye haigone kubatanidza mamwe mabasa.
Parizvino, iyo electro-optical modulator yakapinda munguva ye100 bhiriyoni chiratidzo chereti, (128G iri 128 bhiriyoni), uye lithium niobate yave zvakare kuisa pahondo kuti itore chikamu mumakwikwi, uye inotarisira kutungamirira nguva ino munguva pfupi iri kutevera, ichitungamira kupinda mumusika we250 bhiriyoni. Kuti lithium niobate itorezve musika uyu, zvinodikanwa kuti uongorore kuti indium phosphide uye silicon photons zvinei, asi lithium niobate haina. Ndiko kugona kwemagetsi, kusanganisa kwakanyanya, miniaturization.
Shanduko ye lithium niobate iri mumakona matatu, yekutanga Angle ndiyo nzira yekuvandudza kugona kwemagetsi, yechipiri Angle ndiyo nzira yekuvandudza kubatanidzwa, uye yechitatu Angle ndiyo nzira yekuita miniaturize. Mhinduro yeaya matatu ehunyanzvi makona inoda chiito chimwe chete, ndiko kuti, kuonda firimu reti lithium niobate zvinhu, tora yakaonda kwazvo yelithium niobate zvinhu senge optical waveguide, unogona kugadzira patsva electrode, kuvandudza simba remagetsi, kuvandudza bandwidth uye modulation kushanda kwechiratidzo chemagetsi. Kuvandudza kugona kwemagetsi. Iyi firimu inogonawo kusungirirwa kune silicon wafer, kuti iwane kusanganiswa kusanganiswa, lithium niobate se modulator, iyo yakasara yesilicon photon kubatanidzwa, silicon photon miniaturization kukwanisa kuri pachena kune vose, lithium niobate firimu uye silicon chiedza chakavhenganiswa kusanganiswa, kuvandudza kubatanidzwa, zvakangoitika zvakawanikwa miniaturization.
Munguva pfupi iri kutevera, iyo electro-optical modulator yave kuda kupinda munguva ye200 bhiriyoni chiratidzo chechiyero, iyo optical disadvantage ye indium phosphide uye silicon mafotoni ari kuramba achijeka, uye iyo Optical mukana we lithium niobate iri kuramba ichiwedzera, uye iyo lithium niobate yakaonda firimu inovandudza kusakosha kweiyi firimu yelithium, iyo inosimudzira indasitiri yelithium. niobate”, kureva firimu rakatetepalithium niobate modulator. Iri ibasa remutete firimu lithium niobate mumunda we electro-optical modulators.
Nguva yekutumira: Oct-22-2024