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Presents the introductory welcome message from the conference proceedings. May include the conference officers' congratulations to all involved with the conference event and publication of the proceedings record.
Provides an abstract of the invited presentation and a brief professional biography of the presenter. The complete presentation was not made available for publication as part of the conference proceedings.
Compared to the almost magical impact of lasers and photonics on our lives, from the Internet to supermarket checkouts, mechanical systems can seem almost quaint. Yet one of the surprises of nonlinear optics — the field of optics with high intensity lasers — is that light may interact strongly with sound, the most mundane of mechanical vibrations. Intense laser light literally “shakes” the glass in...
Point-like models are simplified expressions of the polarizability that are commonly employed to study the light scattering by small particles. These models, such as the quasistatic approximation, have played a key role in plasmonics in the understanding of the resonant light interaction with metallic nanoparticles. However, these models fail to predict morphological resonances hosted by dielectric...
We present methods for retrieving the effective impedance of metamaterials from the Fresnel reflection coefficients at the interface between two semi-infinite media. The derivation involves the projection of modal expansions onto the dominant modes of the two semi-infinite media. It is shown that a number of effective impedance formulas, previously obtained by field averaging techniques, can also...
We introduce an open-access online database containing high density datasets from various nonlinear laser systems as a resource for facilitating comparisons between theory and experiment, and for answering new research questions. The database is also useful in data science and machine learning.
We present preliminary findings regarding an optical cross-bar switch concept based on integrated silicon photonics waveguides and a MEMS device. Finite difference time domain simulations were performed were performed at a wavelength of 1550 nm to validate the initial design. Simulations indicate that there is a 9 dB difference in output optical power that can be achieved between the two waveguides.
We propose a general procedure that we used for the design of semiconductor integrated coupled cavity lasers taking advantage of the Photon-Photon Resonance effect to increase their direct modulation bandwidth. The procedure, based on an analysis at threshold of the longitudinal complete cavity modes, is combined with dynamic simulations of the lasers small and large signal modulations. As an example,...
In this work, we introduce a new multi-mode (MM) delay differential equation (DDE) model suited for simulations of the Fabry-Perot type diode laser with an optical feedback from the external cavity (EC), see Fig. 1(a).
We present the development of a numerical simulation tool to analyze the self-mode locking in single section Quatum Dot Fabry-Perot comb lasers. The numerical analysis shows that the outpot optical spectrum is an optical comb because the cavity modes are phased-locked by the four wave mixing. The impact of QD material parameters is also discussed.
Effect of nonlinear gain on the phase noise of Y-branch lasers is studied by numerical simulations, which are based on the developed transmission line model (TLM) and multimode rate equations superposed by Langevin noise sources and nonlinear gain terms. The nonlinear gain is found to have severe effects on the phase noise of the Y-branch lasers.
The use of InGaAs metamorphic buffer layers (MBLs) to facilitate the growth of lattice-mismatched heterostructures constitutes an attractive approach to developing long-wavelength semiconductor lasers on GaAs substrates, since they offer the improved carrier and optical confinement associated with GaAs-based materials. We present a theoretical study of GaAs-based 1.3 and 1.55 μm (Al)InGaAs quantum...
We study the electronic properties of GaAs superlattices consisting of zincblende and wurtzite segments using a ten-band k·p model. Our simulations indicate that the simultaneous treatment of both the Γ7 and the Γ8 conduction bands is essential to achieve an accurate description of electron wave functions and energies.
Overcoming stimulated Brillouin scattering (SBS) is a major challenge in optical telecommunications networks and in fiber lasers. We evaluate the SBS gain coefficient for an all-dielectrid composite material comprising a cubic, subwavelength array of spheres in a uniform background. We demonstrate total SBS suppression in fused silica using GaAs spheres.
We present a theoretical analysis of strain effect on optical gain in biaxially-stressed Ge1−xSnx alloys. The electronic band structure for biaxially-stressed Ge1−xSnx alloys is calculated using deformation potential theory and k·p method. For unstrained Ge1−xSnx alloys, a Sn content of 6.7% is required to achieve a direct bandgap for providing optical gain. The introduction of tensile strain can...
We compare two simulation methods of calculating the Purcell factor in a hyperbolic metamaterial and validate our simulations with measurements. We calculate the Purcell factor from a direct calculation of the local density of states from the band structure of the periodic unit cell. We compare this method with calculations of the Purcell factor obtained from the finite difference time domain (FDTD)...
Reducing the size of device components, e.g. waveguides and resonant cavities, beyond the diffraction limit is a means to an end. Here we demonstrate the condition required to have air cavities within a uniaxial metamaterial clad waveguide. Our work reveals that air cavity sizes much smaller than the operating wavelength (D2h/λ3=6.7e−4) are achievable under specific conditions of cladding material...
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