Published: Nov. 4, 2023
Electro-optic (EO) frequency combs have played a critical role in high-capacity optical communications, microwave photonics, and spectroscopy. These applications require EO featuring good flatness strong coherence, however, high phase noise severely degrades the performance of combs. Here, we demonstrated an on-chip comb generator based on thin-film lithium niobate modulators, analyzed effect integrated
Language: Английский
Nanophotonics, Journal Year: 2025, Volume and Issue: unknown
Published: March 17, 2025
Abstract With the ongoing advancement of micro- and nanofabrication techniques, there has been a notable revival interest in field stimulated Brillouin scattering within nanoscale waveguide structures recent years. A variety nanophotonic devices with different functions have designed fabricated, including lasers, amplifiers, isolators, sensors, filters, delay lines, memory devices. Here, we provide comprehensive review micro/nanophotonic waveguides resonators on various promising material platforms, covering several key aspects such as generation mechanisms nonlinear interactions methods for enhancing gain, range typical applications. Concluding our review, offer insights into prospective future directions this field.
Language: Английский
Citations
1
Laser & Photonics Review, Journal Year: 2024, Volume and Issue: unknown
Published: Aug. 5, 2024
Abstract The ability to engineer entangled states that involve macroscopic objects is of particular importance for a wide variety quantum‐enabled technologies, ranging from quantum information processing sensing. Here how achieve coherent manipulation and enhancement entanglement in hybrid optomechanical system, which consists Fabry–Pérot cavity with two movable mirrors, an optical parametric amplifier (OPA), injected squeezed vacuum reservoir proposed. It shown the advantages this system are twofold: 1) one can effectively regulate light‐mirror interactions by introducing intracavity mode via OPA; 2) when properly matching squeezing parameters between reservoir, input noises be suppressed completely. These peculiar features allow generation controllable way. More importantly, it also found such entanglement, under some specific parameters, considerably enhanced comparison those conventional system. work, providing promising method tailor interaction, poised serve as useful tool engineering various effects based on optomechanics.
Language: Английский
Citations
5
Physical review. A/Physical review, A, Journal Year: 2025, Volume and Issue: 111(2)
Published: Feb. 10, 2025
Language: Английский
Citations
0
Applied Physics Letters, Journal Year: 2025, Volume and Issue: 126(15)
Published: April 14, 2025
We report a detailed characterization of the wavelength dependency two-photon absorption coefficient β and Kerr nonlinearity n2 in aluminum nitride (AlN) single crystal over spectral range from 350 to 1030 nm (0.19 < Ephoto/Eg 0.57). Femtosecond Z-scan results show that dispersion compares favorably with theoretical prediction at wavelengths shorter than 400 (half bandgap Eg). However, nonlinear refractive index demonstrated substantial deviation calculations 350–450 regime, which is correlated sub-bandgap band observed AlN crystal. The effects trapped carrier-induced refraction were determined by femtosecond pump–probe measurements, could be attributed transition valence maximum mid-gap defect states AlN. Our provide guidance for developing AlN-based integrated photonic devices UV–visible range.
Language: Английский
Citations
0
Chinese Journal of Lasers, Journal Year: 2025, Volume and Issue: 52(7), P. 0708002 - 0708002
Published: Jan. 1, 2025
Citations
0
Optics Letters, Journal Year: 2023, Volume and Issue: 49(2), P. 391 - 391
Published: Dec. 8, 2023
High-quality micro-resonators on thin-film lithium niobate (TFLN) have emerged as an ideal platform for on-chip nonlinear optical applications due to their strong light confinement and excellent natural properties. Here, we present high-efficiency second-harmonic generation (SHG) in a TFLN based the modal phase matching quasi-phase matching. By optimizing phase-matching conditions through thermal tuning, demonstrate SHG efficiency of 149,000%/W low power regime. Furthermore, achieve absolute conversion 10.3% with 0.3 mW pump power. Our work paves way toward future efficient frequency classical quantum without need poling LN films.
Language: Английский
Citations
9
Deleted Journal, Journal Year: 2024, Volume and Issue: 1(1)
Published: April 29, 2024
Abstract In this study, an analysis is conducted to treasure the expressions of pulsation expansion factor, in addition standardized output, and solve nonlinear Schrödinger equation (NLSE), reflecting impact XPM on third order dispersion. Using large effective area fiber (LEAF) standard single-mode (SSMF), effects transmission distances varying input powers are assessed at various speeds. The first second GVD only factors influencing pulse’s propagation. second-order not noticeable short low bit rates, but they become system performance as rate increases. study discovered that dominance has less pulse width than data length. Methodical derivation numerical simulation using split-phase Fourier method same power yield SSMF LEAF consequences. comparison fibers, a greater beneficial dispersion fibers.
Language: Английский
Citations
2
ACS Omega, Journal Year: 2024, Volume and Issue: 9(33), P. 35666 - 35675
Published: Aug. 9, 2024
Using first-principles calculations, density functional theory, and the tight-binding method, we investigate optoelectronic properties of two-dimensional gallium phosphide (2D GaP). Our investigation covers electronic properties, such as band structure gap, optical including absorption spectra, refractive index, reflectivity, considering excitonic effects. Additionally, structural aspects stability, elastic Raman infrared spectra are also analyzed. This comprehensive study brings up valuable insights into 2D GaP physics, evincing key features that make it a potential material for applications, photodetectors solar cells.
Language: Английский
Citations
2
Optics Express, Journal Year: 2024, Volume and Issue: 32(7), P. 12118 - 12118
Published: March 13, 2024
Microresonators facilitate enhanced light-matter interactions within a limited space, showing great promise for nonlinear optics. Here, we demonstrate high-quality (Q) factor Fabry-Perot microresonator (FPR) second harmonic generation (SHG) on an x-cut thin film lithium niobate (TFLN) platform. The FPR exhibits Q factors of pump = 1.09 × 10 5 and SH 1.15 4 at the 1560 nm wavelength 780 wavelength, respectively. Under low power, normalized SHG efficiency 158.5 ± 18.5%/W is attained. We experimentally verify that increased temperatures mitigate photorefractive effects degrade performance. This work highlights immense capabilities one-dimensional planar optical waveguide resonators efficient on-chip conversion.
Language: Английский
Citations
1
Frontiers of Optoelectronics, Journal Year: 2024, Volume and Issue: 17(1)
Published: Aug. 8, 2024
Abstract In this paper, we propose a deformed Reuleaux-triangle resonator (RTR) to form exceptional point (EP) which results in the detection sensitivity enhancement of nanoparticle. After introducing single nanoparticle RTR at EP, frequency splitting obtains an more than 6 times compared with non-deformed RTR. addition, EP induced result that far field pattern chiral mode responses significantly external perturbation, corresponding change internal chirality. Therefore, distance 4000 nm can be detected by measuring variation directional emission. Compared traditional splitting, produced provides cost-effective and convenient path detect long distance, without using tunable laser coupler. Our structure indicates great potential high sensor label-free detector. Graphical
Language: Английский
Citations
1