Atụmatụ nke ịbelata ugboro anya dabere naMZM modulator
Enwere ike iji mgbasa ozi ugboro anya dị ka liDARisi iyi ọkụiji wepụta ma nyochaa n'otu oge n'akụkụ dị iche iche, enwere ike iji ya dị ka isi iyi ọkụ nwere ọtụtụ ebili mmiri nke 800G FR4, na-ewepụ usoro MUX. Ọtụtụ mgbe, isi iyi ọkụ nwere ọtụtụ ebili mmiri na-adịghị ike ma ọ bụ na ọ dịghị mma, enwere ọtụtụ nsogbu. Atụmatụ ewepụtara taa nwere ọtụtụ uru ma enwere ike ịkpọ ya maka ntụaka. E gosiri eserese nhazi ya dị ka ndị a: Ike dị eluLaser DFBisi iyi ọkụ bụ ọkụ CW n'ime mpaghara oge na otu ogologo ebili mmiri n'ime ugboro ole. Mgbe ọ gafereihe nhaziSite na fRF ugboro mgbanwe ụfọdụ, a ga-emepụta eriri akụkụ, oge eriri akụkụ ahụ bụkwa fRF ugboro mgbanwe. Ihe nhazi ahụ na-eji ihe nhazi LNOI nwere ogologo 8.2mm, dịka egosiri na Foto b. Mgbe e mechara akụkụ dị ogologo nke ike dị elu.modulator nke usoro, ugboro mgbanwe ahụ bụkwa fRF, usoro ya kwesịrị ime ka akara RF na ọkụ ahụ dị n'otu aka ahụ, na-ebute nnukwu mkpọtụ, na-ebute ọtụtụ ezé anya. Mmetụta DC na omimi mgbanwe nke modulator nwere ike imetụta ịdị larịị nke mgbasa ugboro anya.
N'ihe gbasara mgbakọ na mwepụ, ihe mgbaàmà mgbe ọkụ ahụ gasịrị site na modulator bụ:
A pụrụ ịhụ na oghere anya mmepụta bụ mgbasa ugboro anya nwere oge ugboro nke wrf, ike nke ezé mgbasa ugboro anya metụtara ike anya DFB. Site n'iṅomi ike ìhè na-agafe na modulator MZM naPM phase modulator, wee FFT, a na-enweta ụdị mgbasa ozi ugboro ole anya. Foto na-esonụ na-egosi mmekọrịta kpọmkwem dị n'etiti ịdị larịị ugboro ole anya na modulator DC bias na omimi modulation dabere na simulation a.
Foto na-esonụ na-egosi eserese spectral e mere ka ọ dị ka nke nwere MZM bias DC nke 0.6π na omimi modulation nke 0.4π, nke na-egosi na ịdị larịị ya bụ <5dB.
Ihe ndị a bụ eserese ngwugwu nke modulator MZM, LN dị 500nm n'obosara, omimi etching bụ 260nm, obosara waveguide bụ 1.5um. Ọkpụrụkpụ nke electrode ọlaedo bụ 1.2um. Ọkpụrụkpụ nke SIO2 mkpuchi elu bụ 2um.
Ihe ndị a bụ ụdịdị nke OFC a nwalere, ya na ezé iri na atọ dị larịị na ịdị larịị <2.4dB. Ugboro mgbanwe bụ 5GHz, ibu ike RF na MZM na PM bụ 11.24 dBm na 24.96dBm n'otu n'otu. Enwere ike ịbawanye ọnụọgụ nke ezé nke mkpali mgbasa ugboro anya site n'ịbawanye ike PM-RF, enwere ike ịbawanye oge mgbasa ugboro anya site na ịbawanye ugboro mgbanwe.
Ihe ndị a dị n'elu dabere na atụmatụ LNOI, ihe ndị a dabere na atụmatụ IIIV. Ihe osise nhazi ahụ bụ dịka ndị a: Chip ahụ jikọtara laser DBR, modulator MZM, modulator nkebi PM, SOA na SSC. Otu chip nwere ike ime ka ugboro ole na ole dị elu rụọ ọrụ nke ọma.
SMSR nke DBR laser bụ 35dB, obosara ahịrị bụ 38MHz, ebe nhazi ya bụ 9nm.
A na-eji ihe modulator MZM emepụta akụkụ nke nwere ogologo 1mm na bandwit nke naanị 7GHz@3dB. Ihe kacha emetụta bụ enweghị njikọ na mgbochi, mfu anya ruo 20dB@-8B bias.
Ogologo SOA bụ 500µm, nke a na-eji akwụghachi mfu nke ọdịiche anya modulation, yana bandwit spectral bụ 62nm@3dB@90mA. SSC agbakwunyere na mmepụta na-eme ka arụmọrụ njikọ nke chip dịkwuo mma (arụmọrụ njikọ bụ 5dB). Ike mmepụta ikpeazụ dị ihe dị ka −7dBm.
Iji mepụta mgbasa ugboro anya, ugboro mgbanwe RF ejiri mee ihe bụ 2.6GHz, ike ya bụ 24.7dBm, Vpi nke modulator nkebi ahụ bụkwa 5V. Foto dị n'okpuru bụ ụdị fotophobic nke na-apụta na ezé photophobic 17 @10dB na SNSR dị elu karịa 30dB.
E bu n'obi atụmatụ a maka nnyefe ngwa ndakwa nri 5G, ihe osise na-esonụ bụ ihe dị n'ime spectrum nke ihe nchọpụta ọkụ ahụ chọpụtara, nke nwere ike ịmepụta akara 26G ugboro iri. E kwughị ya ebe a.
Na nchịkọta, ugboro anya nke usoro a na-emepụta nwere oge etiti ugboro, obere mkpọtụ nkebi, ike dị elu na njikọta dị mfe, mana enwere ọtụtụ nsogbu. Mgbaàmà RF nke etinyere na PM chọrọ nnukwu ike, oke oriri ike, oge etiti ugboro a na-ejedebe site na ọnụego mgbanwe, ruo 50GHz, nke chọrọ oge ogologo ogologo (n'ozuzu > 10nm) na sistemụ FR8. Ojiji pere mpe, enweghị ike ịdị larịị ka ezughị.
Oge ozi: Maachị-19-2024