Sellmeier equation for the refractive index of ordinary light in 5mol.% MgO-doped congruent lithium niobate DOI Creative Commons
Bowen Liu, Zhao-Qi-Zhi Han,

Jin-Peng Li

et al.

Optics Express, Journal Year: 2024, Volume and Issue: 33(1), P. 1163 - 1163

Published: Dec. 26, 2024

Congruent lithium niobate is a type of crystal with mature growth process and widely used in nonlinear optics research. Its refractive index accuracy will play crucial role the research application optics. In this paper, we theoretically analyze reliability methods experimentally measure ordinary light at different wavelengths temperatures non-critical phase matching LN by sum-frequency generation spontaneous parametric down-conversion processes, help existing accurate Sellmeier equation for extraordinary light. By fitting light, new set parameters established. This shows excellent agreement experimental results, greatly extends range to 0.5-10 μ m 20-250 ∘ C.

Language: Английский

Electrically tunable optical metasurfaces DOI Creative Commons
Fei Ding, Chao Meng, Sergey I. Bozhevolnyi

et al.

Photonics Insights, Journal Year: 2024, Volume and Issue: 3(3), P. R07 - R07

Published: Jan. 1, 2024

Citations

20
Tunable Transmissive Metasurface Based on Thin-Film Lithium Niobate DOI Creative Commons

Zetian Chen,

Noa Mazurski,

Jacob Engelberg

et al.

ACS Photonics, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 5, 2025

Language: Английский

Citations

0
Research on Multiphysics Fields Coupling Effects of Silicon-Based Lithium Niobate Electro-Optic Modulator DOI
Jing Chen, Yi Shen, Xian-Jia Li

et al.

Optics Communications, Journal Year: 2025, Volume and Issue: unknown, P. 131902 - 131902

Published: April 1, 2025

Language: Английский

Citations

0
On‐Chip Optoelectronic Synapse Based on Embedded Amorphous Carbon in Lithium Niobate‐on‐Insulator DOI
Xu Gao,

Zhaocong Wang,

Yang Tan

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 12, 2025

Abstract Lithium niobate on insulator (LNOI) wafers serve as a fundamental photonic platform for integrated circuits. However, their application in neural networks is limited due to lack of optoelectronic properties, necessitating complex heterogeneous integration. This work proposes novel integration scheme that embeds structures within LNOI using ion implantation achieve broadband functionalities (photovoltaic and persistent photo‐conductivity) mimcking synaptic functions Pavlovian‐type associative learning. Implanted carbon ions form an AC layer embedded lithium (AC – LNOI), characterized by conductivity wide‐spectrum light absorption. Upon illumination, the generates photo carriers, endowing AC‐LNOI with photo‐conductivity, which employed artificial synapse mimic functionalities. demonstrates efficient avenue reduce complexity network learning systems based

Language: Английский

Citations

0
Recent Progresses on Hybrid Lithium Niobate External Cavity Semiconductor Lasers DOI Open Access
Min Wang, Zhiwei Fang, Haisu Zhang

et al.

Materials, Journal Year: 2024, Volume and Issue: 17(18), P. 4453 - 4453

Published: Sept. 11, 2024

Thin film lithium niobate (TFLN) has become a promising material platform for large scale photonic integrated circuits (PICs). As an indispensable component in PICs, on-chip electrically tunable narrow-linewidth lasers have attracted widespread attention recent years due to their significant applications high-speed optical communication, coherent detection, precision metrology, laser cooling, transmission systems, light detection and ranging (LiDAR). However, research on driven, high-power, sources TFLN platforms is still its infancy. This review summarizes the progress compact boosted by hybrid TFLN/III-V semiconductor integration techniques, which will offer alternative solution high performance future PIC industry cutting-edge sciences. The begins with brief introduction of current status external cavity (ECSLs) recently developed photonics. following section presents various ECSLs based chips different structures construct feedback. Some conclusions perspectives are provided.

Language: Английский

Citations

1
Polarization Analysis of Vertically Etched Lithium Niobate-on-Insulator (LNOI) Devices DOI Creative Commons
Chenyu Wang, Yuchen Liu,

Jingyuan Qiu

et al.

Photonics, Journal Year: 2024, Volume and Issue: 11(8), P. 771 - 771

Published: Aug. 19, 2024

LNOI devices have emerged as prominent contributors to photonic integrated circuits (PICs), benefiting from their outstanding performance in electro-optics, acousto-optics, nonlinear optics, etc. Due the physical properties and current etching technologies of LiNbO3, slanted sidewalls are typically formed waveguides, causing polarization-related mode hybridization crosstalk. Despite low losses achieved with fabrication advancements LNOI, such crosstalk still significantly limit device by introducing losses. In this paper, we propose a vertically etched construction. By improving geometrical symmetry vertical could adequately mitigate common waveguide cross sections. Taking tapers bends representatives PIC components, then conducted theoretical modeling simulations, which showed that effectively exempts This not only improves polarization purity input transmittance but also enables lower within more compact structures. As demonstration feasibility, innovatively proposed two-step technique, successfully fabricated waveguides sidewalls. Such technology facilitates development next-generation high-speed modulators, optical devices, other advanced smaller footprint, driving further innovations both academic research industrial applications.

Language: Английский

Citations

0
Lithium niobate on insulator: an emerging nanophotonic crystal for optimized light control DOI Creative Commons

Midhun Murali,

Banerjee Amit,

T. Basu

et al.

Beilstein Journal of Nanotechnology, Journal Year: 2024, Volume and Issue: 15, P. 1415 - 1426

Published: Nov. 14, 2024

Lithium niobate (LN) stands out as a versatile nonlinear optoelectronic material which can be directly applied in tunable modulators, filters, parametric amplifiers, and photonic integrated circuits. Recently, LN crystals have garnered attention compelling candidate for incorporation into circuits, showcasing their potential advancing the field. Photonic possess widely acknowledged capability to manipulate transmission of light modes, similar how nanostructures been utilized regulate electron-related phenomena. Here we study optical performance one-dimensional stacked crystal based on TiO 2 /SiO . We studied quarter wavelength multi-layered stack using electromagnetic simulation. The forbidden-frequency region indifferent from bulk has observed around 1.55 µm. A high refractive index non-linear electro-optical properties enable used more efficient manipulation light. highly reflective quarternary play an important role diverse fields such photonics, optomechanics, optoelectronics, signal processing, quantum technologies, spanning spectrum photon generation (including single-photon sources lasers) (encompassing waveguiding, beam splitting, spin–photon entanglement), detection (involving detectors).

Language: Английский

Citations

0
Fabrication of on-chip single-crystal lithium niobate waveguide microstructures based on mask-chemical mechanical polishing technology DOI
Zhigang Jiang,

Shengshui Wang,

Min Xu

et al.

Optics & Laser Technology, Journal Year: 2024, Volume and Issue: 182, P. 112148 - 112148

Published: Nov. 24, 2024

Language: Английский

Citations

0
Abnormal widening of the domain touching the electrode during in-plane local switching in lithium niobate DOI
A. P. Turygin, Denis Alikin, М. С. Кособоков

et al.

Applied Physics Letters, Journal Year: 2024, Volume and Issue: 125(24)

Published: Dec. 9, 2024

The qualitatively different domain evolution scenarios for polarities of applied voltage pulses have been studied. For positive pulse, the demonstrates only slight width increase during further switching and high stability subsequent imaging. negative faster widening at electrode as compared to base leads change in type charged wall (CDW) from tail-to-tail (t2t) head-to-head (h2h) well formation teeth CDW an array wedge-like domains. Additional imaging reconstruction with t2t CDW. It was demonstrated by numerical simulation that field is above threshold step generation wide region along electrode. This stimulates above-mentioned structure. absence this effect pulse has attributed huge difference conductivity h2h CDWs. current conductive after touching results decrease tip bias due drop on series resistance. domains growing effective screening depolarization injected charge. ineffective charge injection backswitching. obtained knowledge useful development engineering methods thin films fabrication periodically poled waveguides.

Language: Английский

Citations

0
Sellmeier equation for the refractive index of ordinary light in 5mol.% MgO-doped congruent lithium niobate DOI Creative Commons
Bowen Liu, Zhao-Qi-Zhi Han,

Jin-Peng Li

et al.

Optics Express, Journal Year: 2024, Volume and Issue: 33(1), P. 1163 - 1163

Published: Dec. 26, 2024

Congruent lithium niobate is a type of crystal with mature growth process and widely used in nonlinear optics research. Its refractive index accuracy will play crucial role the research application optics. In this paper, we theoretically analyze reliability methods experimentally measure ordinary light at different wavelengths temperatures non-critical phase matching LN by sum-frequency generation spontaneous parametric down-conversion processes, help existing accurate Sellmeier equation for extraordinary light. By fitting light, new set parameters established. This shows excellent agreement experimental results, greatly extends range to 0.5-10 μ m 20-250 ∘ C.

Language: Английский

Citations

0