Polarization electro-optic control inowanikwa nefemtosecond laser kunyora uye liquid crystal modulation

Polarization electro-optickutonga kunoitwa nefemtosecond laser kunyora uye liquid crystal modulation

Vatsvagiri muGermany vakagadzira nzira nyowani yekutarisa chiratidzo chekudzora nekubatanidza femtosecond laser kunyora uye liquid crystal.electro-optic modulation. Nekumisikidza liquid crystal layer muwaveguide, iyo electro-optical control yebeam polarization state inoitika. Iyo tekinoroji inovhura mikana mitsva yese yechip-based zvishandiso uye yakaoma photonic maseketi akagadzirwa uchishandisa femtosecond laser kunyora tekinoroji. Chikwata chekutsvagisa chakatsanangura maitiro avakaita tunable wave mahwendefa mune akasanganiswa silicon waveguides. Kana magetsi akaiswa kune kristaro yemvura, iyo mvura yekristaro mamorekuru inotenderera, iyo inoshandura iyo polarization mamiriro echiedza chinofambiswa mune waveguide. Mune zviedzo zvakaitwa, vaongorori vakabudirira kunyatsogadzirisa polarization yechiedza pane maviri akasiyana anooneka wavelengths (Mufananidzo 1).

Kubatanidza matekinoroji maviri akakosha kuti uwane kufambira mberi mune 3D photonic yakabatanidzwa michina
Iko kugona kwemafemtosecond lasers kunyatsonyora mawaveguides mukati memukati mezvinhu, pane kungoita pamusoro, inovaita inovimbisa tekinoroji yekuwedzera huwandu hwemasaisai pane imwechete chip. Iyo tekinoroji inoshanda nekutarisa yakakwirira-yakasimba laser danda mukati mechinhu chakajeka. Kana kusimba kwechiedza kunosvika pane imwe nhanho, danda rinoshandura zvimiro zvechinhu padanho rayo rekushandisa, sepeni ine micron kunyatsoita.
Chikwata chekutsvagisa chakabatanidza maviri ekutanga mafoton matekiniki ekumisikidza akaturikidzana emvura makristasi mune waveguide. Sezvo danda richifamba nepakati waveguide uye kuburikidza nekristaro yemvura, chikamu uye polarization yedanda inoshanduka kana munda wemagetsi waiswa. Mushure meizvozvo, iyo modulated danda icharamba ichipararira kuburikidza nechikamu chechipiri chewaveguide, nekudaro ichiwana kutapurirana kweiyo optical sign ine modulation maitiro. Iyi tekinoroji yehybrid inosanganisa matekinoroji maviri inogonesa zvakanakira zvese zviri mumudziyo mumwechete: kune rimwe divi, iyo yakanyanya density yechiedza yakaunzwa neiyo waveguide athari, uye kune rimwe divi, iyo yakanyanya kurongeka yekristaro yemvura. Tsvagiridzo iyi inovhura nzira nyowani dzekushandisa zvimiro zvemakristasi emvura kumisikidza waveguides muhuwandu hwehuwandu hwemidziyo se.modulatorsnokutiphotonic zvishandiso.

Mufananidzo 1 Vatsvagiri vakamisikidza makristasi emvura mumawaveguides akagadzirwa neakananga laser kunyora, uye inokonzeresa hybrid mudziyo inogona kushandiswa kushandura polarization yechiedza ichipfuura nepakati waveguides.

Kushandisa uye zvakanakira zvekristaro yemvura mune femtosecond laser waveguide modulation
Nyangweoptical modulationmu femtosecond laser kunyora waveguides yakambowanikwa zvakanyanya nekushandisa kupisa kwenzvimbo kune waveguides, muchidzidzo ichi, polarization yaidzorwa zvakananga nekushandisa makristasi emvura. "Maitiro edu ane akati wandei mabhenefiti: kuderera kwesimba rekushandisa, kugona kugadzirisa ega ega ega ega, uye kuderedza kupindira pakati pepedyo waveguides," vanoongorora vanocherekedza. Kuti uedze kushanda kwechishandiso, timu yakapinza laser muwaveguide uye yakagadziridza mwenje nekusiyanisa voltage inoiswa kune liquid crystal layer. Shanduko dzepolarization dzinoonekwa pakubuda dzinoenderana nezvinotarisirwa zvinotarisirwa. Vatsvakurudzi vakawanawo kuti mushure mokunge crystal yemvura yakabatanidzwa newaveguide, maitiro ekugadzirisa ekristal yemvura akaramba asina kuchinja. Vatsvagiri vanosimbisa kuti chidzidzo ichi chingori humbowo hwepfungwa, saka pachine basa rakawanda rinofanira kuitwa tekinoroji isati yashandiswa mukuita. Semuenzaniso, zvishandiso zvazvino zvinogadzirisa ese mawaveguides nenzira imwechete, saka timu iri kushanda kuti iwane yakazvimirira kutonga yega yega waveguide.