Multiwavelengthqhov kajntawm daim ntawv tiaj tus
Optical chips yog txoj hauv kev tsis tuaj yeem mus txuas ntxiv Moore Txoj Cai Lij Choj, tau dhau los ua kev pom zoo ntawm kev kawm thiab kev lag luam, nws tuaj yeem daws qhov teeb meem ceev thiab lub zog siv hluav taws xob tau ntsib los ntawm cov chips hluav taws xob, xav tias yuav hloov pauv lub neej yav tom ntej ntawm kev txawj ntse thiab kev siv hluav taws xob ultra-high-speed.optical kev sib txuas lus. Nyob rau hauv xyoo tas los no, ib qho tseem ceeb thev naus laus zis los ntawm silicon-raws li photonics tsom rau kev txhim kho cov nti qib microcavity soliton optical zaus combs, uas tuaj yeem tsim kom muaj qhov sib npaug sib npaug sib npaug los ntawm kev kho qhov muag microcavities. Vim nws qhov zoo ntawm kev sib koom ua ke siab, dav spectrum thiab siab rov ua dua zaus, nti qib microcavity soliton lub teeb muaj peev xwm siv tau hauv kev sib txuas lus loj, spectroscopy,microwave photonics, precision ntsuas thiab lwm yam. Feem ntau, kev hloov pauv kev ua haujlwm ntawm microcavity ib leeg ib leeg kho qhov muag zaus zuag feem ntau raug txwv los ntawm cov tsis muaj feem cuam tshuam ntawm optical microcavity. Nyob rau hauv ib lub twj tso kua mis tshwj xeeb, lub zog tso zis ntawm microcavity ib leeg soliton optical zaus zuag feem ntau txwv. Qhov kev taw qhia ntawm sab nraud optical amplification system yuav inevitably cuam tshuam rau lub teeb liab-rau-suab nrov piv. Yog li ntawd, lub tiaj tus spectral profile ntawm microcavity soliton optical zaus zuag tau dhau los ua qhov kev nrhiav ntawm daim teb no.
Tsis ntev los no, ib pab neeg tshawb fawb hauv Singapore tau ua qhov tseem ceeb hauv kev ua haujlwm ntawm ntau lub teeb pom kev zoo ntawm cov ntawv tiaj tus. Pab pawg tshawb fawb tau tsim kho qhov muag microcavity nti nrog lub tiaj tus, dav spectrum thiab zero dispersion, thiab tau ntim cov khoom siv kho qhov muag nrog cov ntug txuas (coupling poob tsawg dua 1 dB). Raws li cov optical microcavity nti, muaj zog thermo-optical nyhuv nyob rau hauv lub optical microcavity yog kov yeej los ntawm cov kev tswv yim ntawm ob chav twj tso kua mis, thiab lub multi-wavelength lub teeb qhov chaw nrog tiaj spectral output yog pom tau hais tias. Los ntawm kev tawm tswv yim tswj qhov system, ntau lub wavelength soliton qhov system tuaj yeem ua haujlwm ruaj khov rau ntau tshaj 8 teev.
Lub spectral tso zis ntawm lub teeb qhov chaw yog kwv yees li trapezoidal, tus nqi repetition yog hais txog 190 GHz, lub tiaj spectrum npog 1470-1670 nm, lub flatness yog hais txog 2.2 dBm (tus qauv sib txawv), thiab lub tiaj tus spectral ntau occupies 70% ntawm tag nrho cov spectral ntau yam. + C + U. Cov txiaj ntsig kev tshawb fawb tuaj yeem siv rau hauv qhov muaj peev xwm kho qhov muag sib cuam tshuam thiab kev ua haujlwm siabkho qhov muagsuav systems. Piv txwv li, nyob rau hauv lub loj-muaj peev xwm kev sib tham ua qauv qhia system raws li microcavity soliton comb qhov chaw, zaus comb pab pawg neeg nrog loj zog sib txawv ntsib teeb meem ntawm tsawg SNR, thaum lub soliton qhov chaw nrog tiaj spectral output yuav zoo kov yeej qhov teeb meem no thiab pab txhim kho SNR nyob rau hauv parallel optical ntaub ntawv ua, uas muaj ib tug tseem ceeb engineering qhov tseem ceeb.
Txoj haujlwm, hu ua "Plat soliton microcomb source," tau luam tawm raws li daim ntawv npog hauv Opto-Electronic Science uas yog ib feem ntawm "Digital thiab Intelligent Optics" qhov teeb meem.
Fig 1. Multi-wavelength teeb pom kev zoo ntawm lub phaj tiaj tus
Post lub sij hawm: Dec-09-2024