Polarization electro-optic control imazindikirika ndi femtosecond laser kulemba komanso kusinthasintha kwamadzimadzi

Polarization electro-opticKuwongolera kumazindikirika ndi kulemba kwa laser femtosecond ndi kusinthasintha kwamadzimadzi

Ofufuza ku Germany apanga njira yatsopano yowongolera ma siginecha mwa kuphatikiza femtosecond laser kulemba ndi kristalo wamadzi.electro-optic modulation. Mwa kuyika kristalo wamadzimadzi mu waveguide, kuwongolera kwa electro-optical kwa mtengo wa polarization state kumakwaniritsidwa. Ukadaulo umatsegula mwayi watsopano wa zida zozikidwa pa chip ndi ma frequency ovuta a Photonic opangidwa pogwiritsa ntchito ukadaulo wolembera wa femtosecond laser. Gulu lofufuzalo lidafotokoza mwatsatanetsatane momwe amapangira mbale zowongoleredwa mumayendedwe osakanikirana a silicon. Mphamvu yamagetsi ikagwiritsidwa ntchito pamadzi amadzimadzi, mamolekyu amadzimadzi amadzimadzi amazungulira, zomwe zimasintha polarization mkhalidwe wa kuwala komwe kumafalikira mu waveguide. M'zoyeserera zomwe zidachitika, ofufuzawo adasinthiratu kusinthasintha kwa kuwala pamitundu iwiri yowoneka bwino (Chithunzi 1).

Kuphatikiza matekinoloje awiri ofunikira kuti mukwaniritse kupita patsogolo kwatsopano mu zida zophatikizika za 3D Photonic
Kuthekera kwa ma lasers a femtosecond kulemba ndendende ma waveguide mkati mwazinthu, osati pamwamba, kumawapangitsa kukhala ukadaulo wolonjeza kuti awonjezere kuchuluka kwa ma waveguides pa chip chimodzi. Tekinolojeyi imagwira ntchito poyang'ana mtengo wokwera kwambiri wa laser mkati mwazinthu zowonekera. Kuwala kowala kukafika pamlingo wina, mtengowo umasintha mawonekedwe a zinthuzo pamlingo wake wogwiritsiridwa ntchito, monga cholembera chokhala ndi kulondola kwa micron.
Gulu lofufuzalo linaphatikiza njira ziwiri zoyambira za photon kuti ziphatikizepo makristasi amadzimadzi mu waveguide. Pamene mtandawo ukuyenda kudzera mu waveguide ndi kupyolera mu kristalo wamadzimadzi, gawo ndi polarization ya mtengowo imasintha kamodzi kokha magetsi akugwiritsidwa ntchito. Pambuyo pake, mtengo wosinthidwa udzapitirira kufalikira kupyolera mu gawo lachiwiri la waveguide, motero kukwaniritsa kutumiza kwa chizindikiro cha kuwala ndi mawonekedwe osinthika. Ukadaulo wosakanizidwawu kuphatikiza matekinoloje awiriwa umathandizira zabwino zonse mu chipangizo chimodzi: mbali imodzi, kuchulukira kwakukulu kwa ndende ya kuwala komwe kumadza chifukwa cha mawonekedwe a waveguide, komanso kusinthika kwakukulu kwa kristalo wamadzimadzi. Kafukufukuyu akutsegula njira zatsopano zogwiritsira ntchito makristasi amadzimadzi kuti alowetse ma waveguide pamtundu wonse wa zida monga.modulatorszazipangizo zamakono.

Chithunzi 1 Ofufuzawo adayika zigawo za kristalo zamadzimadzi m'mafunde opangira mafunde opangidwa ndi kulembera mwachindunji kwa laser, ndipo chotsatiracho chida chosakanizidwa chingagwiritsidwe ntchito kusintha polarization ya kuwala kudutsa ma waveguides.

Kugwiritsa ntchito ndi zabwino zamadzimadzi crystal mu femtosecond laser waveguide modulation
Ngakhalekusinthasintha kwa kuwalamu femtosecond laser kulemba ma waveguides m'mbuyomu adakwaniritsidwa makamaka pogwiritsa ntchito kutentha kwanuko ku ma waveguides, mu phunziroli, polarization idawongoleredwa mwachindunji pogwiritsa ntchito makhiristo amadzimadzi. "Njira yathu ili ndi maubwino angapo: kugwiritsa ntchito mphamvu pang'ono, kutha kukonza mafunde paokha, komanso kuchepetsa kusokoneza pakati pa mafunde oyandikana nawo," ofufuzawo akutero. Pofuna kuyesa mphamvu ya chipangizocho, gululo linalowetsa laser mu njira yoyendera magetsi ndikusintha kuwalako posintha mphamvu yomwe imagwiritsidwa ntchito pagawo lamadzimadzi la crystal layer. Zosintha za polarization zomwe zimawonedwa pazotulutsa zimagwirizana ndi zoyembekeza zamalingaliro. Ofufuzawo adapezanso kuti kristalo wamadzimadzi utaphatikizidwa ndi ma waveguide, mawonekedwe osinthika amadzimadzi amadzimadzi sanasinthe. Ofufuzawo akugogomezera kuti phunziroli ndi umboni chabe wa lingaliro, kotero pali ntchito yochuluka yoti ichitike teknoloji isanayambe kugwiritsidwa ntchito. Mwachitsanzo, zida zamakono zimagwiritsa ntchito ma waveguide onse mofanana, kotero gulu likugwira ntchito kuti likwaniritse ulamuliro wodziimira payekha payekha.