Applications
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TFLN channel waveguides of rib and strip type: properties of guided modes
This study provides a comprehensive modal analysis of thin-film lithium niobate (TFLN) channel waveguides with rib and strip geometries, considering various crystal cuts (X-cut and Z-cut) and on-chip orientations. The finite-element solver in JCMsuite was used to rigorously compute the guided modes, taking full account of the material anisotropy and complex permittivity tensors. The software enabled extensive parameter scans to reveal modal effective indices, symmetry classes, polarization properties, and hybridization effects critical for integrated photonic device design.
M. Hammer, et al. TFLN channel waveguides of rib and strip type: properties of guided modes. Opt. Continuum 4, 2356 (2025).
2025 DOI Publication link
Photonic Waveguides and Fibers, integrated optics, nonlinear optics, quantum optics, Advanced Finite Element Methods, Light Scattering Computation, Propagation Mode Computation
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Estimation of losses caused by sidewall roughness in thin-film lithium niobate rib and strip waveguides
Optical propagation losses in thin-film lithium niobate waveguides are measured using the Fabry-Pérot method. A perturbational model attributing losses to sidewall roughness is developed to predict attenuation for different waveguide geometries. The finite-element solver in JCMsuite is used to rigorously compute the guided mode profiles of the idealized, lossless waveguides, which are essential for the loss estimation procedure.
M. Hammer, et al. Estimation of losses caused by sidewall roughness in thin-film lithium niobate rib and strip waveguides. Opt. Express, 32, 22878 (2024).
2024 DOI Publication link
Photonic Waveguides and Fibers, integrated optics, nonlinear optics, quantum optics, Advanced Finite Element Methods, Light Scattering Computation, Propagation Mode Computation
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GaAs-on-insulator ridge waveguide nanobeam cavities with integrated InAs quantum dots
This work investigates the design, fabrication, and optical characterization of nanobeam cavities on a GaAs-on-insulator platform with integrated InAs quantum dots for quantum photonic applications. JCMsuite was used to perform numerical simulations to optimize the cavity geometry, including the dimensions and periodicity of elliptical holes. These simulations predicted a high photon coupling efficiency of nearly 70% and a Purcell factor of approximately 28 for the optimized structure.
Y. Zhou, et al. GaAs-on-insulator ridge waveguide nanobeam cavities with integrated InAs quantum dots. Mater. Quantum. Technol. 4, 025403 (2024).
2024 DOI Publication link
Light Sources, integrated optics, optical resonators and antennas, quantum optics, Advanced Finite Element Methods, Propagation Mode Computation
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Comprehensive assessment of terahertz quantum-cascade lasers performance characteristics
The authors present a comprehensive method to characterize the electrical, optical, and thermal performance of terahertz quantum-cascade lasers (THz QCLs). To analyze the laser waveguides and decouple the influence of different resonator parameters, the optical waveguide losses were calculated using JCMsuite's finite element method solver. The simulation of a two-dimensional waveguide cross-section was essential for determining the intrinsic waveguide loss and effective refractive index, which were used to separate the contributions of transparency current and various optical losses to the laser threshold.
V. Pistore, et al. Comprehensive assessment of terahertz quantum-cascade lasers performance characteristics. J. Appl. Phys. 136, 194506 (2024).
2024 DOI Publication link
Light Sources, optical resonators and antennas, Light Scattering Computation, Propagation Mode Computation
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Investigation of Mode Coupling Introduced by Forward Rayleigh Scattering
The cross-talk introduced by Rayleigh scattering in multi-mode fibers within 10 modes is estimated analytically. To validate the analytic formulation, the modes are computed with JCMsuite.
C. M. Spenner, et al. Investigation of Mode Coupling Introduced by Forward Rayleigh Scattering. Photonic Networks; 24th ITG-Symposium, 1-6 (2023).
2023
Photonic Waveguides and Fibers, Propagation Mode Computation
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Optimized diamond inverted nanocones for enhanced color center to fiber coupling
The emission from color centers in inverted nanocones is numerically investigated using JCMsuite's finite-element solver and Bayesian optimizer. The study considers, e.g., optimizations of the nano cone geometry and the parameters of the collecting optics to maximize the fiber coupling efficiency.
C. G. Torun, et al. Optimized diamond inverted nanocones for enhanced color center to fiber coupling. Appl. Phys. Lett, 118, 234002 (2021).
2021 DOI Publication link
Light Sources, quantum optics, Light Scattering Computation, Optimization and Parameter Retrieval Methods, Propagation Mode Computation
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Simulation of Nonlinear Signal Propagation in Multimode Fibers on Multi-GPU Systems
The study presents a multi-GPU implementation to simulate the nonlinear signal propagation in multimode fibers. The mode profiles and propagation constants are calculated numerically with JCMsuite.
M. Brehler, et al. Simulation of Nonlinear Signal Propagation in Multimode Fibers on Multi-GPU Systems. Communications in Nonlinear Science and Numerical Simulation, 84, 105150 (2020).
2020 DOI Publication link
Photonic Waveguides and Fibers, Propagation Mode Computation
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Silver nanowires with silica coating as plasmonic resonators
JCMsuite is used to compare experimental results on silica coated, resonant nanowires to theoretical models.
M. Rothe, et al. Silver nanowires with optimized silica coating as versatile plasmonic resonators. Sci. Rep. 9, 3859 (2019).
2019 DOI
Photonic Waveguides and Fibers, optical resonators and antennas, plasmonics, Propagation Mode Computation, Resonance Mode Computation
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Terahertz quantum-cascade lasers
JCMsuite is used to compute modes of terahertz quantum-cascade lasers.
B. Röben, et al. Terahertz quantum-cascade lasers for high-resolution spectroscopy of sharp absorption lines. J. Appl. Phys. 125, 151613 (2019).
2019 DOI
Photonic Waveguides and Fibers, Propagation Mode Computation
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Optimization of the Doping Profile in Fiber Amplifiers for Mode-Division Multiplexing
Mode-division multiplexing allows to increase the capacity per fiber beyond the limits of single mode fiber systems. JCMsuite has been used to numerically investigate gain equalization for amplifiers in such systems. Step-index fibers as well as graded-index fibers have been investigated.
S. Jeurink, et al. Optimization of the Erbium Doping Profile in Erbium-Doped Fiber Amplifiers for Mode-Division Multiplexing. IEEE Proc. Photonic Networks (2018).
2018 DOI
Photonic Waveguides and Fibers, Propagation Mode Computation
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Losses of single-mode waveguides with an arbitrary 2D trajectory
JCMsuite has been used in the numerical analysis of photonic wire bonds. These are waveguides written with direct laser writing.
F. Negredo, et al. Fast and reliable method to estimate losses of single-mode waveguides with an arbitrary 2D trajectory. J. Opt. Soc. Am. A 35, 1063 (2018).
2018 DOI
Photonic Waveguides and Fibers, integrated optics, Propagation Mode Computation
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Supercontinuum generation with microstructured photonic crystal fibers based on fluoride glass
FEM used to compute dispersion curves for modes in microstructured fibers.
X. Jiang, et al. U.S. Patent No. 9362707B2 (2016).
2016
Light Sources, Photonic Waveguides and Fibers, nonlinear optics, Propagation Mode Computation
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Supercontinuum generation in solid-core photonic crystal fibres
FEM simulations used in the theoretical analysis of PCF for supercontinuum generation.
X. Jiang, et al. Deep-ultraviolet to mid-infrared supercontinuum generated in solid-core ZBLAN photonic crystal fibre. Nat. Photonics 9, 133 (2015).
2015 DOI
Light Sources, Photonic Waveguides and Fibers, nonlinear optics, Propagation Mode Computation
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Grating couplers for mode multiplexed systems
JCMsuite is used to design fiber grating couplers on SOI for excitation of several LP fiber modes.
B. Wohlfeil, et al. Numerical simulation of grating couplers for mode multiplexed systems. Proc. SPIE 8988, 89880K (2014).
2014 DOI Publication link
diffractive optics, integrated optics, Light Scattering Computation, Propagation Mode Computation
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High-Power Semiconductor Laser Simulation
Numerical modeling of semiconductor lasers, including also the impact of thermal lensing.
H. Wenzel. Basic Aspects of High-Power Semiconductor Laser Simulation. IEEE J. Sel. Top. Quantum Electron. 19, 1 (2013).
2013 DOI Publication link
Light Sources, Propagation Mode Computation, other methods
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Twisted photonic crystal fibers
A helical twist of a microstructured fiber allows to control loss, dispersion, and polarization state of light. In this work, JCMsuite is used to simulate and quantitatively explain experimental results.
G. Wong, et al. Excitation of orbital angular momentum resonances in helically twisted photonic crystal fiber. Science 337, 446 (2012).
2012 DOI
Photonic Waveguides and Fibers, optical chirality, Propagation Mode Computation, other methods
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Design of large-mode-area photonic bandgap rod fiber amplifiers
JCMsuite is used in the design of large-mode-area fiber amplifiers
T. T. Alkeskjold, et al. Single-mode ytterbium-doped large-mode-area photonic bandgap rod fiber amplifier. Opt. Express 19, 7398 (2011).
2011 DOI Publication link
Light Sources, Photonic Waveguides and Fibers, Propagation Mode Computation, Resonance Mode Computation, other methods
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Plasmon modes on submicron gold wire in photonic crystal fiber
Surface plasmon modes on gold nanowires embedded to photonic crystal fibers are selectively excited. FEM simulations are in good agreement with the experimental results.
H. W. Lee, et al. Polarization-dependent coupling to plasmon modes on submicron gold wire in photonic crystal fiber. Appl. Phys. Lett. 93, 111102 (2008).
2008 DOI Publication link
Photonic Waveguides and Fibers, plasmonics, Propagation Mode Computation
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Multi-Octave Optical-Frequency Combs
Ultrabroad coherent comb-like optical spectra spanning several octaves are essential for the field of attoscience. Generation and guidance of a three-octave spectral comb, spanning wavelengths from 325 to 2300 nanometers has been demonstrated in a hydrogen-filled hollow-core photonic crystal fiber. Here, numerical simulations with JCMsuite are used for designing and understanding Kagome lattice HCPCF cladding modes.
F. Couny, et al. Generation and Photonic Guidance of Multi-Octave Optical-Frequency Combs. Science 318, 1118 (2007).
2007 DOI Publication link
Photonic Waveguides and Fibers, Propagation Mode Computation, Resonance Mode Computation