William R. Rowe's scientific contributions

Publications (9)

Article
We present a model for χ(2) waveguides accounting for three modes, two of which make an avoided crossing at the second harmonic wavelength. We introduce two linearly coupled pure modes and adjust the coupling to replicate the waveguide dispersion near the avoided crossing. Analysis of the nonlinear system reveals continuous wave (CW) solutions acro...
Preprint
Full-text available
We present a model for $\chi^{(2)}$ waveguides accounting for three modes, two of which make an avoided crossing at the second harmonic wavelength. We introduce two linearly coupled pure modes and adjust the coupling to replicate the waveguide dispersion near the avoided crossing. Analysis of the nonlinear system reveals continuous wave (CW) soluti...
Article
We analyze Raman-induced self-frequency shift in two-component solitons supported by both quadratic and cubic nonlinearities. Treating Raman terms as a perturbation, we derive expressions for soliton velocity and frequency shifts of the fundamental frequency and second-harmonic soliton components. We find these predictions compare well with simulat...
Preprint
Full-text available
We analyse Raman-induced self-frequency shift in two-component solitons supported by both quadratic and cubic nonlinearities. Treating Raman terms as a perturbation, we derive expressions for soliton velocity and frequency shifts of the fundamental frequency and second harmonic soliton components. We find these predictions compare well with simulat...
Article
Full-text available
We present a model of soliton propagation in waveguides with quadratic nonlinearity. Criteria for solitons to exist in such waveguides are developed and two example nanowaveguide structures are simulated as proof of concept. Interactions between quadratic solitons and dispersive waves are analyzed, giving predictions closely matching soliton propag...
Preprint
We present a model of soliton propagation in waveguides with quadratic nonlinearity. Criteria for solitons to exist in such waveguides are developed and two example nano-waveguide structures are simulated as proof of concept. Interactions between quadratic solitons and dispersive waves are analysed giving predictions closely matching soliton propag...

Citations

... Interest in temporal quadratic (χ (2) ) solitons has seen recent resurgence [1][2][3][4] thanks to the development of nano-waveguides over the last decade [5][6][7][8]. In particular, Lithium Niobate (LiNbO 3 , LN) nano-waveguides provide the strong χ (2) response and broadband transparency required for a range of applications including supercontinuum generation (SCG) and pulse compression [2,[9][10][11][12][13][14][15]. ...
... Interest in temporal quadratic (χ (2) ) solitons has seen recent resurgence [1][2][3][4] thanks to the development of nano-waveguides over the last decade [5][6][7][8]. In particular, Lithium Niobate (LiNbO 3 , LN) nano-waveguides provide the strong χ (2) response and broadband transparency required for a range of applications including supercontinuum generation (SCG) and pulse compression [2,[9][10][11][12][13][14][15]. ...