Mumakore achangopfuura, vatsvakurudzi vanobva kunyika dzakasiyana-siyana vakashandisa mapikicha akabatanidzwa kuti vaone kunyengedza kwemafungu emwenje e infrared uye voaisa kune yakakwirira-kumhanya 5G network, chip sensors, uye autonomous mota. Parizvino, nekuramba kuchidzika kwegwaro rekutsvagisa iri, vaongorori vatanga kuita zvakadzama kuona mabhendi emwenje mapfupi anooneka uye kugadzira maapplication akawedzera, senge chip-level LIDAR, AR/VR/MR (yakasimudzirwa/virtual/ hybrid) Chokwadi) Magirazi, holographic kuratidza, quantum processing chips, optogenetic probes akaiswa muuropi, nezvimwe.
Iyo yakakura-yakakura kubatanidzwa kweiyo optical phase modulators ndiyo musimboti weiyo optical subsystem ye-on-chip optical routing uye yemahara-nzvimbo wavefront kuumbwa. Aya maviri ekutanga mabasa akakosha pakuzadzikiswa kweakasiyana maapplication. Nekudaro, kune optical phase modulators mune inooneka light renji, zvinonyanya kunetsa kusangana nezvinodiwa zvepamusoro transmittance uye yakakwirira modulation panguva imwe chete. Kuti usangane nezvinodiwa izvi, kunyangwe iyo yakanyatsokodzera silicon nitride uye lithium niobate zvinhu zvinoda kuwedzera huwandu uye simba rekushandisa.
Kugadzirisa dambudziko iri, Michal Lipson naNanfang Yu vekuColumbia University vakagadzira silicon nitride thermo-optic phase modulator yakavakirwa pane adiabatic micro-ring resonator. Vakaratidza kuti iyo micro-ring resonator inoshanda mune yakasimba coupling state. Chishandiso chinogona kuwana chikamu modulation nekurasikirwa kushoma. Kuenzaniswa neyakajairwa waveguide phase modulators, chishandiso chine kanenge kurongeka kwekuderedzwa kwehukuru munzvimbo uye mashandisiro emagetsi. Izvo zvinoenderana nazvo zvakaburitswa muNature Photonics.
Michal Lipson, nyanzvi inotungamira mumunda weiyo yakabatanidzwa photonics, yakavakirwa pasilicon nitride, akati: "Kiyi yemhinduro yedu yakarongwa ndeye kushandisa optical resonator uye kushanda mune inonzi yakasimba coupling state."
The optical resonator chimiro chakanyanya symmetrical, chinogona kushandura diki refractive index shanduko kuita shanduko yechikamu kuburikidza neakawanda kutenderera kwechiedza. Kazhinji, inogona kukamurwa kuita matatu akasiyana anoshanda anoti: "pasi pekubatana" uye "pasi pekubatana." Kubatana kwakakosha" uye "kubatana kwakasimba." Pakati pavo, "pasi pekubatanidza" inogona kungopa yakaderera chikamu modulation uye ichaunza isina kufanira amplitude shanduko, uye "yakakosha coupling" inokonzeresa kurasikirwa kwemaziso, nekudaro ichikanganisa kuita chaiko kwechishandiso.
Kuti uwane yakakwana 2π chikamu modulation uye kushoma amplitude shanduko, timu yekutsvagisa yakabata iyo microring mune "yakasimba coupling" mamiriro. Simba rekubatanidza pakati pe microring ne "bhazi" rinosvika zvakapetwa kagumi kupfuura kurasikirwa kwe microring. Mushure mekutevedzana kwekugadzira uye kugadzirisa, chimiro chekupedzisira chinoratidzwa mumufananidzo uri pazasi. Iyi imhete inonzwika ine tapered width. Iyo yakatetepa waveguide chikamu inovandudza optical coupling simba pakati pe "bhazi" uye micro-coil. Iyo yakakura waveguide chikamu Kurasikirwa kwechiedza kweiyo microring kunoderedzwa nekudzikisa kupararira kwemaziso kwepadivi.
Heqing Huang, munyori wekutanga webepa, akatiwo: "Takagadzira diki, rinochengetedza simba, uye rakaderera zvakanyanya-rakarasikirwa rinooneka chikamu modulator ine radius ye5 μm chete uye π-chikamu modulation simba rekushandisa chete. 0.8 mW. Iyo yakaunzwa amplitude musiyano iri pasi pe10%. Chiri kushoma ndechekuti modulator iyi inoshanda zvakaenzana kune yakanyanya kuoma yebhuruu uye yegirini mabhendi mune inooneka spectrum. "
Nanfang Yu akaratidzawo kuti kunyange zvazvo vari kure nekusvika pamwero wekubatanidza zvigadzirwa zvemagetsi, basa ravo rakanyanya kuderedza kusiyana pakati pe photonic switches uye magetsi. "Kana yakapfuura modulator tekinoroji yakangobvumira kubatanidzwa kwezana waveguide phase modulators yakapihwa imwe chip tsoka uye bhajeti remagetsi, saka isu tinokwanisa kubatanidza zviuru gumi zvinochinja pachikamu chimwe chete kuti tiwane basa rakaoma."
Muchidimbu, iyi nzira yekugadzira inogona kuiswa kune electro-optic modulators kuderedza nzvimbo yakagarwa uye mashandisirwo emagetsi. Inogona zvakare kushandiswa mune mamwe spectral siyana uye mamwe akasiyana resonator magadzirirwo. Parizvino, timu yekutsvagisa iri kushandirapamwe kuratidza inooneka spectrum LIDAR inoumbwa nechikamu shifter arrays zvichibva pamamicrorings akadaro. Mune ramangwana, inogona zvakare kuiswa kune akawanda maapplication akadai seakakwidziridzwa optical nonlinearity, nyowani lasers, uye nyowani quantum optics.
Kunobva chinyorwa: https://mp.weixin.qq.com/s/O6iHstkMBPQKDOV4CoukXA
Beijing Rofea Optoelectronics Co., Ltd. iri muChina "Silicon Valley" - Beijing Zhongguancun, ibhizimusi repamusoro-soro rakatsaurirwa kushandira masangano ekutsvagisa epamba nekunze, masangano ekutsvagisa, mayunivhesiti uye bhizinesi vashandi vezvesainzi. Kambani yedu inonyanya kuita mukutsvagisa yakazvimirira uye kusimudzira, dhizaini, kugadzira, kutengesa kwezvigadzirwa zveoptoelectronic, uye inopa mhinduro nyowani uye nehunyanzvi, masevhisi emunhu evaongorori vesainzi uye mainjiniya emaindasitiri. Mushure memakore ekuzvimiririra innovation, yakagadzira akapfuma uye akakwana akatevedzana ezvigadzirwa zvemafotoelectric, ayo anoshandiswa zvakanyanya mumaspala, mauto, zvekufambisa, simba remagetsi, mari, dzidzo, zvekurapa uye mamwe maindasitiri.
Tiri kutarisira kubatana newe!
Nguva yekutumira: Mar-29-2023