Madogarar haske mai tsayi da yawa akan takardar lebur

Multiwavelelongtushen haskea kan lebur sheet

Na gani kwakwalwan kwamfuta su ne makawa hanya don ci gaba da Moore ta Law, ya zama ijma'i na ilimi da kuma masana'antu, zai iya yadda ya kamata warware gudun da kuma amfani da wutar lantarki matsaloli fuskantar da lantarki kwakwalwan kwamfuta, ana sa ran karkatar da nan gaba na fasaha kwamfuta da kuma matsananci-high-gudun.sadarwa na gani. A cikin 'yan shekarun nan, wani muhimmin ci gaba na fasaha a cikin photonics na tushen silicon yana mai da hankali kan haɓaka matakin guntu matakin microcavity soliton na gani na mitar combs, wanda zai iya haifar da haɗaɗɗun mitar mitoci iri ɗaya ta hanyar microcavities na gani. Saboda fa'idodinsa na babban haɗin kai, bakan bakan da babban mitar maimaituwa, matakin guntu matakin microcavity soliton hasken haske yana da yuwuwar aikace-aikace a cikin babban ƙarfin sadarwa, spectroscopy,microwave photonics, ma'auni daidai da sauran filayen. Gabaɗaya, ingancin jujjuyawar microcavity guda soliton na gani na mitar mitar gani yawanci ana iyakance shi da ma'auni masu dacewa na microcavity na gani. Ƙarƙashin ƙayyadaddun ƙarfin famfo, ƙarfin fitarwa na microcavity guda ɗaya soliton na mitar mitar gani yana yawanci iyakance. Gabatar da tsarin ƙarawa na gani na waje ba makawa zai yi tasiri ga rabon sigina-zuwa amo. Sabili da haka, bayanin martabar lebur na microcavity soliton na mitar mitar gani ya zama abin neman wannan filin.

Kwanan nan, ƙungiyar bincike a Singapore ta sami ci gaba mai mahimmanci a fagen samar da hasken haske mai tsayi da yawa akan zanen gado. Ƙungiyar binciken ta ƙera guntu microcavity na gani tare da lebur, faffadan bakan kuma kusa da tarwatsewar sifili, kuma cikin inganci sun haɗa guntu na gani tare da haɗin kai (asarar haɗawa ƙasa da 1 dB). Dangane da guntu microcavity na gani, ingantaccen tasirin thermo-optical a cikin microcavity na gani yana shawo kan tsarin fasaha na yin famfo sau biyu, kuma tushen haske mai tsayi da yawa tare da fitowar lebur mai lebur. Ta hanyar tsarin sarrafa martani, tsarin tushen soliton mai tsayi da yawa na iya aiki da ƙarfi fiye da sa'o'i 8.

Fitar da keɓaɓɓen tushen hasken yana kusan trapezoidal, ƙimar maimaitawa kusan 190 GHz ne, bakan bakan yana rufe 1470-1670 nm, flatness shine kusan 2.2 dBm (daidaitawar daidaitattun daidaito), kuma kewayon lebur ya mamaye 70% na gaba ɗaya. spectral kewayon, rufe S+C+L+U band. Za a iya amfani da sakamakon binciken a cikin haɗin kai mai girma da kuma babban girmana ganitsarin kwamfuta. Misali, a cikin babban ƙarfin nunin tsarin nunin sadarwa dangane da tushen microcavity soliton tsefe, ƙungiyar mitar tsefe tare da babban bambance-bambancen makamashi na fuskantar matsalar ƙarancin SNR, yayin da tushen soliton tare da fitowar lebur na iya shawo kan wannan matsala yadda yakamata kuma ya taimaka inganta SNR a cikin daidaitaccen sarrafa bayanan gani, wanda ke da mahimmancin aikin injiniya.

Aikin, mai suna "Flat soliton microcomb source," an buga shi azaman murfin takarda a cikin Opto-Electronic Science a matsayin wani ɓangare na batun "Digital and Intelligent Optics".

Hoto 1. Matsakaicin fahimtar tushen haske mai tsayi da yawa akan farantin lebur