Nhanganyaya
Kufuridzirwa nekubudirira kwemagetsi emagetsi akabatanidzwa (EICs), munda we photonic integrated circuits (PICs) yave ichichinja kubva payakatanga muna 1969. Zvisinei, kusiyana neEICs, kugadzirwa kwepuratifomu yepasi rose inokwanisa kutsigira zvakasiyana-siyana photonic applications inoramba iri dambudziko guru. Ichi chinyorwa chinoongorora hunyanzvi huri kusimukira Lithium Niobate paInsulator (LNOI) tekinoroji, iyo yakakurumidza kuve mhinduro inovimbisa yechizvarwa chinotevera PIC.
Kuwedzera kweLNOI Technology
Lithium niobate (LN) yagara ichizivikanwa sechinhu chakakosha chekushandisa photonic. Nekudaro, chete nekuuya kweiyo yakaonda-firimu LNOI uye hunyanzvi hwekugadzira hunyanzvi hunogona kuvhurwa. Vatsvagiri vakabudirira kuratidza ekupedzisira-akaderera-kurasikirwa ridge waveguides uye ekupedzisira-yakakwirira-Q mamicroresonators paLNOI mapuratifomu [1], ichimaka kusvetuka kwakakosha mumapikicha akabatanidzwa.
Mabhenefiti Akakosha eLNOI Technology
- Ultra-low optical kurasikirwa(yakadzika se0.01 dB/cm)
- High-quality nanophotonic structures
- Tsigiro yeakasiyana nonlinear optical maitiro
- Yakabatanidzwa electro-optic (EO) tunability
Nonlinear Optical Matanho paLNOI
High-performance nanophotonic zvimiro zvakagadzirwa papuratifomu yeLNOI inogonesa kuzadzikiswa kweakakosha asina mutsara optical maitiro ane hunyanzvi hunoshamisa uye shoma simba repombi. Maitiro akaratidzirwa anosanganisira:
- Yechipiri Harmonic Generation (SHG)
- Sum Frequency Generation (SFG)
- Difference Frequency Generation (DFG)
- Parametric Down-Conversion (PDC)
- Four-Wave Mixing (FWM)
Zvirongwa zvakasiyana-siyana zvekufananidza zvakaitwa kuti zvigadzirise maitiro aya, kumisikidza LNOI seyakanyanya kuchinjika isina mutsara yekuona chikuva.
Electro-Optically Tunable Integrated Devices
Tekinoroji yeLNOI yakagonesawo kuvandudzwa kweakasiyana-siyana anoshanda uye asingaiti tuble tuble photonic zvishandiso, senge:
- High-speed optical modulators
- Reconfigurable multifunctional PICs
- Tunable frequency mizinga
- Micro-optomechanical zvitubu
Midziyo iyi inokwidziridza iyo yemukati EO zvivakwa zve lithium niobate kuti iwane chaiyo, yakakwirira-kumhanya kudzora kwemasaini emwenje.
Inoshanda Zvishandiso zveLNOI Photonics
LNOI-based PICs ikozvino iri kugamuchirwa munhamba iri kukura yezvishandiso zvinoshanda, kusanganisira:
- Microwave-to-optical converters
- Optical sensors
- On-chip spectrometers
- Optical frequency mizinga
- Advanced telecommunication systems
Aya maapplication anoratidza kugona kweLNOI kuenderana nekushanda kweakawanda-optic components, uku ichipa scalable, simba-inoshanda mhinduro kuburikidza nephotolithographic kugadzirwa.
Matambudziko Azvino uye Mafambiro Amangwana
Kunyangwe kufambira mberi kwayo kunovimbisa, tekinoroji yeLNOI inotarisana nezvipingaidzo zvakati wandei:
a) Kuwedzera Kuderedza Kurasika kweOptical
Ikozvino waveguide kurasikirwa (0.01 dB/cm) ichiri kurongeka kwehukuru hwepamusoro kupfuura iyo yekubata zvinhu. Kufambira mberi kweion-slicing tekinoroji uye nanofabrication inodiwa kuderedza kushata kwepamusoro uye kukanganisa kunoenderana nekutora.
b) Yakavandudzwa Waveguide Geometry Control
Kugonesa sub-700 nm waveguides uye sub-2 μm yekubatanidza magapu pasina kubaira kudzokorora kana kuwedzera kurasikirwa kwekuparadzira kwakakosha kune yakakwirira yekubatanidza density.
c) Kuvandudza Coupling Efficiency
Nepo tapered fiber uye modhi inoshandura ichibatsira kuwana yakakwira coupling kunyatsoita, anti-reflection coatings inogona kuwedzera kudzikisira mhepo-material interface kuratidza.
d) Kuvandudzwa kweLoss-Loss Polarization Components
Polarization-insensitive photonic devices paLNOI yakakosha, ichida zvikamu zvinoenderana nekushanda kwemahara-nzvimbo polarizers.
e) Kubatanidzwa kweKudzora Electronics
Kunyatsobatanidza hukuru-hukuru kudzora zvemagetsi pasina kushatisa optical performance ndiyo yakakosha yekutsvagisa nzira.
f) Yepamberi Phase Matching uye Dispersion Injiniya
Kuvimbika kwedomendi patani pa sub-micron resolution kwakakosha kune nonlinear optics asi inoramba iri immature tekinoroji papuratifomu yeLNOI.
g) Muripo weKukanganisa Kwekugadzira
Matekinoroji ekudzikisa shanduko yechikamu anokonzerwa nekuchinja kwezvakatipoteredza kana misiyano yekugadzira yakakosha pakutumirwa kwepasirese.
h) Inoshanda Multi-Chip Coupling
Kugadzirisa kubatana kwakanaka pakati peakawanda LNOI machipi kunodiwa kuyera kupfuura imwe-wafer yekubatanidza miganho.
Monolithic Kubatanidzwa kweAnoshanda uye Passive Zvikamu
Dambudziko guru reLNOI PICs ndiyo inodhura-inoshanda monolithic yekubatanidza yezvinhu zvinoshanda uye zvisingaite senge:
- Lasers
- Detectors
- Nonlinear wavelength converters
- Modulators
- Multiplexers/Demultiplexers
Mazano azvino anosanganisira:
a) Ion Doping yeLNOI:
Kusarudza doping yemaion anoshanda munzvimbo dzakatarwa inogona kutungamira kune-chip mwenje masosi.
b) Bonding uye Heterogeneous Kubatanidzwa:
Bonding pre-yakagadzirwa passive LNOI PICs ine doped LNOI layers kana III-V lasers inopa imwe nzira.
c) Hybrid Active/Passive LNOI Wafer Fabrication:
Nzira yekuvandudza inosanganisira kusungirirana uye kuvhurwa kweLN wafers isati yachekwa ion, zvichikonzera LNOI wafers ane matunhu anoshanda uye asingaite.
Mufananidzo 1inoratidza pfungwa ye hybrid integrated active/passive PICs, apo imwe lithographic process inogonesa kurongeka uye kubatanidzwa kwemhando mbiri dzezvikamu.
Kubatanidzwa kwe Photodetectors
Kubatanidza mafotodetectors muLNOI-based PICs nderimwe danho rakakosha kune anoshanda zvizere masisitimu. Nzira mbiri dzekutanga dziri kuongororwa:
a) Heterogeneous Kubatanidzwa:
Semiconductor nanostructures inogona kubatanidzwa kwenguva pfupi kune LNOI waveguides. Nekudaro, kuvandudzwa kwekuona kugona uye scalability zvichiri kudikanwa.
b) Nonlinear Wavelength Shanduko:
LN's nonlinear zvivakwa zvinobvumira frequency kutendeuka mukati mewaveguides, ichigonesa kushandiswa kweyakajairwa silicon photodetectors zvisinei nekushanda wavelength.
Mhedziso
Iko kukurumidza kufambira mberi kwehunyanzvi hweLNOI kunounza indasitiri pedyo nepasirese PIC chikuva chinokwanisa kushandira huwandu hwakawanda hwekushandisa. Nekugadzirisa zvipingamupinyi zviripo uye kusundira mberi hunyanzvi hwekubatanidza monolithic uye detector, LNOI-based PICs ine mukana wekushandura minda seyekufonera, ruzivo rwehuwandu, uye kunzwa.
LNOI inobata chivimbiso chekuzadzikisa chiono chenguva refu chePICs dzinotyisa, kuenzanisa kubudirira uye kukanganisa kweEICs. Kuenderera mberi nekuedza kweR&D - senge idzo dzinobva kuNanjing Photonics process Platform uye XiaoyaoTech Dhizaini Platform - ichave yakakosha mukuumba ramangwana reakasanganiswa mafotonic uye kuvhura mikana mitsva munzvimbo dzese tekinoroji.
Nguva yekutumira: Jul-18-2025