Sezvatinoziva, kubvira kuma1990s, tekinoroji yeWDM WDM yakashandiswa kune refu-haul fibre-optic links dzemazana kana kunyange zviuru zvemakiromita. Kumatunhu mazhinji enyika, iyo fiber infrastructure ndiyo inodhura zvakanyanya, nepo mutengo we transceiver zvikamu wakaderera.
Zvisinei, nekuputika kwehuwandu hwemashoko mumatanho akadai se5G, teknolojia yeWDM iri kuwedzera kukosha muzvikamu zvenguva pfupi zvakare, iyo inoshandiswa mumabhuku makuru zvikuru uye naizvozvo inonyanya kukoshesa mari uye hukuru hwemagungano e-transceiver.
Parizvino, network idzi dzichiri kuvimba nezviuru zve-single-mode optical fibers inofambiswa nenzira yakafanana kuburikidza nematashi emuchadenga division multiplexing, ine data yakaderera inosvika mazana mashoma Gbit/s (800G) pachiteshi, ine nhamba shoma inogoneka. zvikumbiro muT-kirasi.
Nekudaro, mune ramangwana rinofanoona, iyo pfungwa yezvakajairwa spatial parallelization ichakurumidza kusvika kumiganhu ye scalability yayo, uye ichafanirwa kuwedzeredzwa nekutaridzika kwekuenzanisa kweiyo data hova mune yega fiber kuitira kuti irambe ichiwedzera kuwedzera kwe data data. Izvi zvinogona kuvhura nzvimbo nyowani yekunyorera yeWDM tekinoroji, mune iyo yakanyanya scalability maererano nehuwandu hwechiteshi uye chiyero chedata chakakosha.
Muchirevo ichi,iyo optical frequency comb jenareta (FCG)inoita basa rakakosha seyakagadziriswa, yakagadziriswa, yakawanda-wavelength chiedza chinokonzera iyo inogona kupa nhamba yakawanda yezvakanyatsotsanangurwa optical carriers. Pamusoro pezvo, mukana wakanyanya kukosha weoptical frequency combs ndeyekuti mitsetse yecomb yakaenzana mukuwanda, nekudaro kudzoreredza chinodiwa chemabhendi e-inter-channel bhendi uye kudzivirira ma frequency control angazodiwa pamutsara mumwechete muchirongwa chakajairwa uchishandisa. ruzhinji rweDFB lasers.
Izvo zvakakosha kuti uzive kuti mabhenefiti aya anoshanda kwete chete kune vanotumira WDM asiwo kune avo vanoagamuchira, uko discrete local oscillator (LO) arrays anogona kutsiviwa nekamwe comb jenareta. Iko kushandiswa kweLO comb jenareta kunowedzera kufambisira dhijitari dhijitari kugadzirisa kweWDM chiteshi, nekudaro ichidzikisa kuomarara kwekugamuchira uye kuwedzera chikamu chekushivirira kweruzha.
Mukuwedzera, kushandiswa kweLO comb zviratidzo ne-phase-locking for parallel coherent reception inotoita kuti zvikwanise kugadzirisa nguva-domain waveform yechiratidzo cheWDM yose, nokudaro kubhadhara kukanganisa kunokonzerwa ne-optical nonlinearities mu transmission fiber. Kuwedzera kune aya mabhenefiti eiyo comb-yakavakirwa chiratidzo kutapurirana, diki saizi uye inodhura-inobudirira kugadzirwa kwemazhinji zvakare akakosha kune ramangwana reWDM transceivers.
Naizvozvo, pakati peakasiyana comb chiratidzo jenareta pfungwa, chip-scale zvishandiso zvinonyanya kufarira. Kana yakabatanidzwa nepamusoro-scalable photonic integrated circuits ye data signal modulation, multiplexing, routing uye kugamuchira, michina yakadaro inogona kubata kiyi ye compact, inonyatsobudirira yeWDM transceivers inogona kugadzirwa yakawanda pamutengo wakaderera, ine simba rekutumira kusvika kumakumi. yeTbit/s pa fiber.
Mufananidzo unotevera unoratidza schematic yeWDM transmitter ichishandisa optical frequency comb FCG seyakawanda-wavelength light source.Iyo FCG comb signal inotanga kupatsanurwa mu demultiplexer (DEMUX) uye yopinda muEOM electro-optical modulator. Kuburikidza, iyo chiratidzo inoiswa kune yepamusoro QAM quadrature amplitude modulation ye optimal spectral performance (SE).
Pane iyo transmitter egress, zviteshi zvinosanganiswa zvakare mumultiplexer (MUX) uye masaini eWDM anofambiswa pane imwechete mode fiber. Pakuguma kwekugamuchira, wavelength division multiplexing receiver (WDM Rx), inoshandisa LO local oscillator ye2nd FCG ye-multiwavelength coherent kuonekwa. Nzira dzekupinza WDM zviratidzo zvinoparadzaniswa ne demultiplexer uye inodyiswa kune yakabatana inogamuchira array (Coh. Rx). uko iyo demultiplexing frequency yemunharaunda oscillator LO inoshandiswa sechikamu chereferensi kune yega yega inogamuchira yakabatana. Kuita kweiyo WDM links zviri pachena kunoenderana neyakakura pane iri pasi peiyo comb chiratidzo jenareta, kunyanya iyo yekuona mutsara upamhi uye optical simba pamutsetse wecomb.
Ehe, optical frequency comb tekinoroji ichiri mudanho rekusimudzira, uye mamiriro ayo ekushandisa uye saizi yemusika idiki. Kana ichikwanisa kukurira mabhodhoro ehunyanzvi, kuderedza mitengo uye kugadzirisa kuvimbika, zvino zvinozogoneka kuwana chiyero-chikamu chekushandisa mukufambisa kwemaziso.
Nguva yekutumira: Nov-21-2024