Sistemụ ihe eji ejikọta fotonic (PIC).

Sistemụ ihe eji ejikọta fotonic (PIC).

Silicon photonics bụ ọzụzụ na-eji atụmatụ atụmatụ dabere na ihe silicon iji duzie ọkụ iji nweta ọrụ dị iche iche. Anyị na-elekwasị anya ebe a na ngwa nke silicon photonics na-eke transmitters na nnata maka fiber optic nkwukọrịta. Dị ka ọ dị mkpa ịgbakwunye mgbasa ozi na bandwit nyere, akara aka nyere, na ọnụ ahịa na-abawanye, silicon photonics na-aghọwanye ụda akụ na ụba. Maka akụkụ anya,teknụzụ ntinye nke photonicA ghaghị iji ya mee ihe, na ọtụtụ ndị transceivers na-arụkọ ọrụ ọnụ taa ka a na-ewu site na iji LiNbO3/planar light-wave circuit (PLC) modulators na ndị na-anata InP/PLC.

Ọgụgụ 1: Na-egosi sistemu ihe eji eme sekit agbakwunyere (PIC).

Ọgụgụ 1 na-egosi sistemu ihe eji eme PIC kacha ewu ewu. Site n'aka ekpe gaa n'aka nri bụ silica PIC dabeere na silicon (nke a makwaara dị ka PLC), PIC insulator dabeere na silicon (silicon photonics), lithium niobate (LiNbO3), na III-V otu PIC, dị ka InP na GaAs. Akwụkwọ a na-elekwasị anya na fotonic nke dabeere na silicon. N'imesilicon photonics, mgbama ọkụ na-emekarị njem na silicon, nke nwere oghere na-apụtaghị ìhè nke 1.12 electron volts (ya na ogologo ogologo nke 1.1 microns). A na-akụ silicon n'ụdị kristal dị ọcha n'ọkụ wee bee n'ime wafers, nke taa na-abụkarị 300 mm na dayameta. N'elu wafer bụ oxidized ka ọ bụrụ oyi akwa silica. Otu n'ime wafer na-eji atom hydrogen gbachie n'otu omimi. A na-ejikọta wafers abụọ ahụ na oghere na oghere oxide ha na-ejikọta ibe ha. Nzukọ ahụ na-agbaji n'akụkụ eriri ntinye hydrogen ion. A na-asachapụ oyi akwa silicon dị na mgbawa ahụ, na-emecha hapụ obere oyi akwa nke crystalline Si n'elu wafer silicon "aka" na-adịghị emebi emebi n'elu oyi akwa silica. A na-esi na oyi akwa kristal a dị gịrịgịrị kpụrụ ụzọ waveguides. Ọ bụ ezie na ihe mkpuchi mkpuchi silicon ndị a (SOI) na-eme ka ụzọ ụgbọ mmiri silicon photonics dị ala, a na-ejikarị ha eme ihe na sekit CMOS dị ala n'ihi obere ntanye dị ugbu a ha na-enye.

E nwere ọtụtụ ụdị dị iche iche nke silikoni na-ahụ maka waveguides, dị ka egosiri na Figure 2. Ha sitere na microscale germanium-doped silica waveguides ruo nanoscale Silicon Wire waveguides. Site na ịgwakọta germanium, ọ ga-ekwe omume ịmefotodetectorna absorption eletrikimodulators, na ikekwe ọbụna ngwa ngwa ngwa anya. Site na doping silicon, anngwa anya modulatorenwere ike ime. N'ala site n'aka ekpe gaa n'aka nri bụ: ntuziaka wave silicon waya, silicon nitride waveguide, silicon oxynitride waveguide, silicon ridge waveguide, silicon nitride waveguide dị mkpa na silicon waveguide doped. N'elu, site n'aka ekpe gaa n'aka nri, bụ modulators depletion, germanium photodetectors, na germanium.ngwa anya amplifiers.

Onyonyo 2: Nkebi nke usoro ihe nleba anya anya nke dabere na silicon, na-egosi mfu mgbasa ozi na ntụgharị anya.