A5059170944- Photonic Crystal and Fiber Optics
- Advanced Fiber Laser Technologies
- Optical Network Technologies
- Laser-Matter Interactions and Applications
- Phase-change materials and chalcogenides
- Glass properties and applications
- Quantum Dots Synthesis And Properties
- Photonic and Optical Devices
- Chalcogenide Semiconductor Thin Films
McGill University
2020-2023
Abstract Alloys of sulfur, selenium and tellurium, often referred to as chalcogenide semiconductors, offer a highly versatile, compositionally-controllable material platform for variety passive active photonic applications. They are optically nonlinear, photoconductive materials with wide transmission windows that present various high- low-index dielectric, low-epsilon plasmonic properties across ultra-violet, visible infrared frequencies, in addition an, non-volatile, electrically/optically...
Soliton self-frequency shift (SSFS) is a fundamental mechanism of optical wavelength conversion and supercontinuum generation. Often, it desirable to use nonlinear propagation design that provides large amount SSFS, leading with frequency offset or broad The most effective approach enhance SSFS using an amplifying medium. In this context, was theoretically predicted pre-amplified seed pulse should be chirped maximize the extent SSFS. Here, we make experimental verification claim. For...
We derive an analytical formulation of the Raman-induced frequency shift experienced by a fundamental soliton. By including propagation losses, self-steepening, and dispersion slope, resulting is high-order (HO) extension well-known Gordon’s formula for soliton self-frequency (SSFS). The HO-SSFS agrees closely with numerical results generalized nonlinear Schrödinger equation, but without computational complexity required computation time. useful tool design validation wavelength conversion...
We formulate the energy conversion efficiency from a high-order soliton to fundamental solitons by including influence of interpulse Raman scattering in fission process. The proposed analytical formula agrees closely with numerical results generalized nonlinear Schrödinger equation as well experimental results, while resulting formulation significantly alters predicted Raman-independent inverse method. also calculate materials different gain profiles such silica, ZBLAN, and chalcogenide...
We formulate moment equations that quantify the soliton self-frequency shift in amplifying fibers. Soliton evolution is quantified terms of energy, chirp, duration, delay, and central frequency as a function fiber properties gain, dispersion, nonlinearity their wavelength-dependence. Results from agree closely with results obtained nonlinear Schrodinger equation but without heavy computational resources requirements. Moment also have great advantage explicitly revealing optimal initial pulse...
We experimentally demonstrate that in-amplifier soliton self-frequency shift and energy conversion efficiency are maximized using a pump pulse with chirp of C 0 ≈0.65g LD . This result is fundamental for optimal design SSFS based wavelength converters.
We formulate the energy conversion efficiency from a high-order soliton to fundamental solitons by including influence of interpulse Raman scattering in fission process. The proposed analytical formula agrees closely with numerical results generalized nonlinear Schrodinger equation as well experimental results, while resulting formulation significantly alters predicted Raman-independent inverse method. also calculate materials different gain profiles such silica, ZBLAN and chalcogenide...
We derive moment equations predicting adiabatic soliton spectral shift in a gain fiber. The resulting coupled provide insight and accurately quantify properties without the computational resources required to solve nonlinear Schrödinger equation.
We derive an analytic expression for the Ramaninduced frequency shift of a fundamental soliton in optical fiber, beyond well-known Gordon formula. Resulting from moment method quantifies as function fiber and pulse parameters.
We experimentally and numerically evaluate the energy distribution of fundamental solitons following a high-order soliton fission process. Under certain conditions, this evaluation significantly diverges from prediction led by inverse scattering method.
We predict analytically the energy conversion efficiency from fission of a high-order soliton into fundamental solitons. Taking inter-pulse Raman gain account, this prediction adds precision to inverse scattering method prediction.
We derive an analytical expression that predicts the Raman-induced frequency shift experienced by a soliton. By including fiber losses, dispersion slope, and self-steepening, resulting is high-order extension of Gordon’s formula.
We derive an analytical formulation of Raman-induced frequency shift experienced by a soliton. The resulting is high-order extension Gordon's formula for soliton self-frequency that includes propagation losses, self-steepening, and dispersion slope.