Polarization electro-opticUkulawula kutholakala ngokubhala kwe-laser ye-femtosecond kanye nokuguqulwa kwe-liquid crystal
Abaphenyi eJalimane bathuthukise indlela yenoveli yokulawulwa kwesiginali ye-Optical ngokuhlanganisa ukubhala kwe-laser ye-femtosecond kanye ne-liquid crystalUkushintshwa kwe-electro-optic. Ngokufaka ungqimba lwe-crystal ungqimba ku-waveguide, ukulawulwa kwe-electro-optical kwe-beam polarization state kuyabonakala. Ubuchwepheshe buvula amathuba amasha ngokuphelele kumadivayisi asuselwa ku-chip kanye nezindawo eziyinkimbinkimbi ze-Photonic ezenziwe kusetshenziswa ubuchwepheshe bokubhala be-laser lase-Femmosecond. Iqembu lokucwaninga lichaza ukuthi bakwenza kanjani amapuleti we-selve ama-weves asetshenziswayo we-silicon waveGudes. Lapho i-voltage isetshenziswa kwi-crystal ewuketshezi, ama-liquid crystal molecule ajikeleza, aguqula isimo sombala sokukhanya okudluliselwe e-waveguide. Ezandleni ezenziwayo, abaphenyi ngempumelelo ngokuphelele ukulondolozwa kokukhanya kokukhanya okuhlukahlukene okuhlukahlukene (Umdwebo 1).
Ukuhlanganisa ubuchwepheshe obukhulu bokuthola inqubekela phambili emisha kumadivayisi ahlanganisiwe we-3D
Amandla we-FETTOSECOND LASERS ukubhala ngokuqondile ama-wavegcuides ajulile ngaphakathi kokuqukethwe, kunokuba nje ebusweni, kubenza babe nobuchwepheshe obuthembisayo ukukhulisa inani lama-wavegcuides ku-chip eyodwa. Ubuchwepheshe busebenza ngokubheka ugongolo oluphezulu lwe-laser ngaphakathi kwezinto ezibonakalayo. Lapho ukuqina kokukhanya kufinyelela ezingeni elithile, ugongolo lushintsha izakhiwo zezinto ezibonakalayo endaweni yalo, njengepeni ngokunemba kwe-micro.
Iqembu lokucwaninga lihlanganisa amasu amabili ayisisekelo we-Photon ukushumeka ungqimba lwamakristalu awuketshezi e-WaveGuide. Njengoba ugongolo luhamba nge-waveguide futhi nge-crystal ewuketshezi, isigaba kanye ne-polarization of the beam change shintsha uma insimu kagesi isetshenziswa. Kamuva, ugongolo oluguquliwe luzoqhubeka nokusakaza ngengxenye yesibili ye-waveguide, ngaleyo ndlela ifinyelele ekudluliseleni kwesiginali ye-optical ngezimpawu zokumongisa. Lokhu kubuchwepheshe kwe-hybrid okuhlanganisa ubuchwepheshe bobabili kunika amandla izinzuzo zomabili kudivayisi efanayo: Ngakolunye uhlangothi, ubuningi obuphezulu bokuhlushwa okukhanyayo okulethwa ngumphumela we-waveguide, ngakolunye uhlangothi, ukuguquguquka okuphezulu kwekristalu ye-liquid. Lolu cwaningo luvula izindlela ezintsha zokusebenzisa izakhiwo zamakristalu awuketshezi ukushumeka ama-wavegcuides evolubheni eliphelele lamadivayisi njengobaama-modulatorsingomaneAmadivayisi we-Photonic.
Umdwebo 1 Abaphenyi bashumeke izingqimba ze-Crystal eziwuketshezi ezi-WaveGuides ezidalwe ngokubhala i-laser eqondile, kanti i-hybrid yedivaysi ephumayo ingasetshenziselwa ukuguqula i-polarization yokukhanya okudlula ama-waveGuides
Isicelo kanye nezinzuzo ze-Liquid Crystal ku-Femtosecond Laser WaveGuide Movie
NokhoUkushintshwa kokukhanyaKu-Femtosecond Laser Writive Gugedes ngaphambili yatholakala ngokuyinhloko ngokusebenzisa ukufudumala kwasendaweni kuma-waveguides, kulolu cwaningo, ukugada kwalawulwa ngokuqondile ngokusebenzisa amakristalu asolwandle. "Indlela yethu inezinzuzo eziningi ezingaba khona: ukusetshenziswa kwamandla okuphansi, amandla okucubungula ama-wavegcuides ngamanye ngokuzimela, futhi anciphise ukuphazamiseka phakathi kwama-wavegcuides aseduze," abaphenyi banaka. Ukuhlola ukusebenza kwedivayisi, iqembu lifake i-laser ku-waveguide futhi laguqula ukukhanya ngokuhlukahluka kwamandla kagesi asetshenziswa ku-liquid crystal ungqimba. Izinguquko ze-polarization ezazibhekwe ekuphumeni ziyahambisana nokulindelwe kwethiyori. Abaphenyi baphinde bathola ukuthi ngemuva kokuthi i-crystal ye-liquid ihlanganiswe ne-waveguide, izici zokushintshana zekristalu ye-liquid zahlala zingashintshiwe. Abaphenyi bagcizelela ukuthi lolu cwaningo lumane nje luwubufakazi bomqondo, ngakho-ke kusekhona umsebenzi omningi okufanele wenziwe ngaphambi kokuthi ubuchwepheshe busetshenziswe ekusebenzeni. Isibonelo, amadivaysi wamanje aguqula wonke ama-wavegcuides ngendlela efanayo, ngakho iqembu lisebenzela ukufeza ukulawulwa okuzimele kwe-waveguide ngayinye.
Isikhathi sePosi: Meyi-14-2024