Ubude be-multiwavelengumthombo wokukhanyaeshidini eliyisicaba
Ama-chips optical ayindlela engenakugwenywa yokuqhubeka noMthetho kaMoore, isibe ukuvumelana kwezemfundo kanye nezimboni, ingaxazulula ngempumelelo izinkinga zokusebenzisa amandla nesivinini ezibhekene nama-chips e-elekthronikhi, kulindeleke ukuthi iphazamise ikusasa lekhompyutha ehlakaniphile kanye nesivinini esiphezulu.ukuxhumana optical. Eminyakeni yamuva nje, ukuphumelela okubalulekile kwezobuchwepheshe kuma-photonics asekelwe ku-silicon kugxile ekuthuthukisweni kwezinga le-chip microcavity soliton optical combs, okungakhiqiza ama-combs ahlukaniswe ngokulinganayo ngokusebenzisa ama-microcavities optical. Ngenxa yezinzuzo zayo zokuhlanganisa okuphezulu, i-spectrum ebanzi kanye nemvamisa yokuphindaphinda okuphezulu, umthombo wokukhanya we-chip level microcavity soliton unezinhlelo zokusebenza ezingase zibe khona ekuxhumaneni okukhulu kwamandla, i-spectroscopy,izithombe ze-microwave, ukulinganisa okunembayo nezinye izinkambu. Ngokuvamile, ukusebenza kahle kokuguqulwa kwe-microcavity single soliton optical comb imvamisa kunqunyelwe imingcele efanele ye-optical microcavity. Ngaphansi kwamandla epompo athile, amandla okukhiphayo e-microcavity single soliton optical comb avame ukukhawulelwa. Ukwethulwa kwesistimu yokukhulisa i-optical yangaphandle kuzothinta nakanjani isilinganiso sesignali-kuya-nomsindo. Ngakho-ke, iphrofayili ye-spectral eyisicaba ye-microcavity soliton optical frequency comb isiphenduke ukuphishekela le nsimu.
Muva nje, ithimba labacwaningi e-Singapore lenze inqubekelaphambili ebalulekile emkhakheni wemithombo yokukhanya enamaza amaningi kumashidi ayisicaba. Ithimba locwaningo lenze i-optical microcavity chip ene-spectrum eyisicaba, ebanzi futhi eduze ne-zero dispersion, futhi lapakisha kahle i-optical chip nge-edge coupling (ukulahlekelwa kokuhlanganisa okungaphansi kuka-1 dB). Ngokusekelwe ku-optical microcavity chip, umphumela oqinile we-thermo-optical ku-microcavity optical unqotshwa uhlelo lobuchwepheshe lokumpompa kabili, kanye nomthombo wokukhanya wamaza amaningi onokuphuma kwe-spectral eyisicaba. Ngohlelo lokulawula impendulo, isistimu yomthombo we-soliton enamaza amaningi ingasebenza ngokuzinza ngaphezu kwamahora angu-8.
Umphumela we-spectral womthombo wokukhanya ucishe ube yi-trapezoidal, izinga lokuphindaphinda licishe libe ngu-190 GHz, i-spectrum eyisicaba ihlanganisa i-1470-1670 nm, ukucaba kucishe kube ngu-2.2 dBm (ukuchezuka okujwayelekile), kanti uhla lwe-spectral oluyisicaba luthatha u-70% walo lonke uhla lwe-spectral, olumboza i-Spectral band+L. Imiphumela yocwaningo ingasetshenziswa ekuxhumaneni kwe-optical yekhono eliphezulu kanye ne-high-dimensionalopticalamasistimu ekhompyutha. Isibonelo, kusistimu yokubonisa yomthamo omkhulu wokuxhumana okusekelwe kumthombo we-microcavity soliton comb, iqembu le-comb elivamisa elinomehluko omkhulu wamandla libhekene nenkinga ye-SNR ephansi, kuyilapho umthombo we-soliton onokuphuma kwe-spectral eyisicaba unganqoba ngempumelelo le nkinga futhi usize ukuthuthukisa i-SNR ekucutshungulweni kolwazi oluhambisanayo, olunokubaluleka okubalulekile kobunjiniyela.
Umsebenzi, onesihloko esithi “Flat soliton microcomb source,” washicilelwa njengephepha lesembozo ku-Opto-Electronic Science njengengxenye yodaba lwe-“Digital and Intelligent Optics”.
Umfanekiso 1. Isikimu sokubona umthombo wokukhanya wamaza amaningi epuleti eliyisicaba
Isikhathi sokuthumela: Dec-09-2024