Ibipimo byo gupima uburebure bwumurongo biri murutonde rwa kilohertz

Vuba aha twigiye muri kaminuza yubumenyi n’ikoranabuhanga mu Bushinwa, itsinda ry’abashakashatsi ba kaminuza ya Guo Guangcan, Porofeseri Dong Chunhua hamwe n’umufatanyabikorwa Zou Changling basabye ko hajyaho uburyo bwo kugenzura imiyoboro ikwirakwizwa rya micro-cavity ku isi hose, kugira ngo bagere ku gihe nyacyo cyigenga cyo kugenzura imiyoboro ya optique y’umurongo w’inshuro zisubirwamo, kandi ikoreshwa mu gupima neza uburebure bwa optique, uburebure bw’umurambararo bwiyongereye kuri kilohertz (kHz). Ibyavuye mu bushakashatsi byatangajwe mu Itumanaho rya Kamere.
Microcombs ya Soliton ishingiye kuri microcavities optique yakwegereye ubushakashatsi mubijyanye na spécrosroscopi nisaha nziza. Nyamara, kubera ingaruka z urusaku rwibidukikije na laser hamwe nizindi ngaruka zidafite umurongo muri microcavity, ituze rya microcomb ya soliton iragabanuka cyane, bikaba intambamyi ikomeye mugukoresha muburyo bwo gukoresha urumuri ruto ruto. Mubikorwa byabanjirije iki, abahanga bahagaritse kandi bagenzura ibimamara bya optique mugucunga indangagaciro yibintu cyangwa geometrike ya microcavity kugirango bagere kubitekerezo nyabyo, byateje impinduka hafi yuburyo bumwe bwa resonance muburyo bwa microcavity icyarimwe, bidafite ubushobozi bwo kugenzura ubwigenge no gusubiramo ibimamara. Ibi bigabanya cyane ikoreshwa ryumucyo mucye mumashusho afatika ya spekitroscopi yuzuye, fotora ya microwave, optique, nibindi.

Kugira ngo iki kibazo gikemuke, itsinda ry’ubushakashatsi ryasabye uburyo bushya bw’umubiri kugira ngo tumenye ubwigenge nyabwo bwigenga bw’igihe cyagenwe n’inshuro zisubiramo za optique ya optique. Mugutangiza uburyo bubiri butandukanye bwo gukwirakwiza micro-cavity ikwirakwiza, itsinda rirashobora kwigenga kugenzura ikwirakwizwa ryibicuruzwa bitandukanye bya micro-cavity, kugirango bigere ku kugenzura byuzuye inshuro zitandukanye zinyo yinyo ya optique ya optique. Ubu buryo bwo gukwirakwiza ibintu ni rusange ku mbuga zitandukanye zahujwe na fotonike nka silicon nitride na lithium niobate, byakozweho ubushakashatsi.

Itsinda ry’ubushakashatsi ryakoresheje pompe ya lazeri na lazeri yingoboka kugirango bigenzure bigenga uburyo butandukanye bwimiterere ya microcavity kugirango bamenye ihinduka ryimiterere ryimiterere ya pompe hamwe nubuyobozi bwigenga bwikurikiranwa ryinshuro zisubiramo. Hashingiwe ku kimamara cya optique, itsinda ry’ubushakashatsi ryerekanye amabwiriza yihuse, ashobora gutegekwa kugenzura imirongo yikurikiranya uko yishakiye kandi ayishyira mu gupima neza uburebure bw’umuraba, yerekana umuraba w’umuraba ufite ibipimo bifatika byerekana uko kilohertz ifite n'ubushobozi bwo gupima uburebure bwinshi icyarimwe. Ugereranije n'ibisubizo byabanjirije ubushakashatsi, ibipimo byo gupima byagezweho nitsinda ryubushakashatsi bigeze kuri bitatu byo kuzamura ubunini.

Microcombs ya soliton yongeye kugaragara muri ubu bushakashatsi bwashizeho urufatiro rwo kumenya ibiciro bidahenze, chip ihuriweho na optique yumurongo wa optique, izakoreshwa mugupima neza, isaha optique, spekitroscopi no gutumanaho.