Iifotoni ezisekelwe kwi-silicon okwangoku zithathwa njengeqonga leefotoni lesizukulwana esilandelayo sonxibelelwano oluzinzisiweyo.Nangona kunjalo, uphuhliso lwe-compact kunye ne-low power optical modulators luhlala lungumceli mngeni.Apha sichaza isiphumo esikhulu se-electro-optical kwi-Ge/SiGe edityaniswe namaqula e-quantum.Esi siphumo sithembisayo sisekwe kwisiphumo esingaqhelekanga se-quantum Stark ngenxa yokuvalelwa okwahlukileyo kwee-electron kunye nemingxuma kwimithombo edityanisiweyo ye-Ge/SiGe quantum.Le nto ingasetyenziselwa ukuphucula kakhulu ukusebenza kweemodyuli zokukhanya xa kuthelekiswa neendlela eziqhelekileyo eziphuhliswe ngoku kwi-silicon photonics.Silinganise utshintsho kwi-index refractive ukuya kwi-2.3 × 10-3 kwi-voltage ye-bias ye-1.5 V kunye ne-modulation esebenzayo ehambelanayo ye-VπLπ ye-0.046 Vcm.Lo mboniso uvula indlela yokuphuhliswa kweemodyuli zesigaba esinesantya esiphezulu esisekelwe kwiinkqubo zezinto ze-Ge/SiGe.
Ixesha lokuposa: Jun-06-2023