Atụmatụ nke ịhịa aka n'ahụ ugboro ole dabere naMZM modulator
Enwere ike iji mgbasa ozi ugboro anya dị ka liDARìhè isi iyika n'out oge na-ebupụ na iṅomi n'akụkụ dị iche iche, na nwekwara ike iji dị ka multi-wavelength ìhè ọkụ nke 800G FR4, na-ewepụ ihe owuwu MUX. Ọtụtụ mgbe, isi iyi ọkụ multi-wavelength bụ ma ọ bụ ike dị ala ma ọ bụ na-ejikọtaghị nke ọma, na enwere ọtụtụ nsogbu. Atụmatụ ewepụtara taa nwere ọtụtụ uru na enwere ike ịkpọ ya maka ntụnye aka. E gosipụtara eserese nhazi ya dị ka ndị a: Ike dị eluDFB laserIsi iyi ọkụ bụ ọkụ CW na ngalaba oge yana otu wavelength na ugboro ole. Mgbe gafere amodulatorn'iji ụfọdụ fRF modulation, a ga-emepụta eriri n'akụkụ, yana etiti nke sideband bụ fRF agbanwere ugboro ugboro. Modulator na-eji modulator LNOI nwere ogologo 8.2mm, dịka egosiri na foto b. Mgbe ogologo akụkụ nke ike dị eluusoro modulator, ugboro modulation bụkwa fRF, na usoro ya kwesịrị ime ka crest ma ọ bụ trough nke RF mgbama na ọkụ usu metụtara ibe ha, na-eme ka a nnukwu chirp, na-eme ka ọzọ ngwa anya ezé. The DC ele mmadụ anya n'ihu na modulation omimi nke modulator nwere ike imetụta flatness nke ngwa anya ugboro mgbasa.
Na mgbakọ na mwepụ, mgbama mgbe igwe modulator gbanwechara oghere ọkụ bụ:
Enwere ike ịhụ na mpaghara ngwa anya mmepụta bụ mgbasa ozi anya ugboro ugboro na nkeji oge nke wrf, na ike nke nha nha nha anya ugboro ugboro metụtara ike anya DFB. Site na ịmegharị ike ọkụ na-agafe MZM modulator naPM usoro modulator, na mgbe ahụ FFT, a na-enweta ụdị mgbasa ozi anya ugboro ugboro. Ọnụọgụ na-esonụ na-egosi njikọ kpọmkwem dị n'etiti flatness ugboro anya na modulator DC nhụsianya na modulation omimi dabere na nke a simulation.
Ọnụọgụ na-esote na-egosi eserese ngosi simulated nwere MZM bias DC nke 0.6π yana omimi nke 0.4π, nke na-egosi na mkpọda ya bụ <5dB.
Ihe na-esonụ bụ eserese ngwugwu nke MZM modulator, LN bụ 500nm gbara ọkpụrụkpụ, omimi etching bụ 260nm, na obosara waveguide bụ 1.5um. Ọkpụrụkpụ nke electrode ọla edo bụ 1.2um. Ọkpụrụkpụ nke SIO2 mkpuchi elu bụ 2um.
Ndị na-esonụ bụ ụdịdị dị iche iche nke OFC nwalere, nwere ezé 13 na-adịghị ahụkebe na ọnụ ala <2.4dB. Ugboro modulation bụ 5GHz, na ntinye ike RF na MZM na PM bụ 11.24 dBm na 24.96dBm n'otu n'otu. Enwere ike ịbawanye ọnụ ọgụgụ ezé nke mkpali mgbasa ozi anya site n'ịbawanye ike PM-RF, yana enwere ike ịbawanye oge mgbasa ozi anya site n'ịbawanye ọnụọgụ mgbanwe. foto
Ihe a dị n'elu dabere na atụmatụ LNOI, nke a dabere na atụmatụ IIIV. Eserese ihe owuwu bụ nke a: mgbawa na-ejikọta DBR laser, MZM modulator, PM phase modulator, SOA na SSC. Otu mgbawa nwere ike nweta nrịanrịa ngwa anya dị elu.
SMSR nke laser DBR bụ 35dB, obosara ahịrị bụ 38MHz, yana nzigharị ya bụ 9nm.
A na-eji modulator MZM mepụta eriri sideband nwere ogologo 1mm yana bandwit nke naanị 7GHz@3dB. Oke nke amachiri site na ndakọrịta impedance, mfu anya ruo 20dB@-8B nhụsianya.
Ogologo SOA bụ 500µm, nke a na-eji kwụọ ụgwọ mfu ihe dị iche iche nke anya, yana bandwit dị iche iche bụ 62nm@3dB@90mA. SSC agbakwunyere na mmepụta na-eme ka nrụpụta njikọ nke mgbawa dịkwuo mma (nrụkọta njikọ bụ 5dB). Ike mmepụta ikpeazụ bụ ihe dịka -7dBm.
Iji mepụta mgbasa ozi anya ugboro ugboro, RF modulation ugboro eji bụ 2.6GHz, ike bụ 24.7dBm, na Vpi nke modulator usoro bụ 5V. Ọnụ ọgụgụ dị n'okpuru bụ ụdị fotophobic nke na-esi na ya pụta nwere ezé fotophobic 17 @10dB na SNSR dị elu karịa 30dB.
Ezubere atụmatụ a maka nnyefe ngwa ngwa 5G, ọnụ ọgụgụ na-esote bụ akụkụ dị iche iche nke ihe nchọta ọkụ achọpụtara, nke nwere ike iwepụta akara 26G ugboro iri ugboro iri. Ekwughị ya ebe a.
Na nchịkọta, ugboro ngwa anya nke usoro a na-emepụta nwere ogologo oge kwụsiri ike, ụda obere oge, ike dị elu na ntinye dị mfe, mana enwerekwa ọtụtụ nsogbu. Mgbama RF nke etinyere na PM chọrọ ike buru ibu, nnukwu ike oriri, yana nkeji oge na-ejedebe site na ọnụego mgbanwe, ruo 50GHz, nke chọrọ ogologo ogologo ogologo ogologo (n'ozuzu> 10nm) na sistemụ FR8. Ojiji dị oke, ike flatness ka ezughị.
Oge nzipu: Mar-19-2024