55 citations · 102 across the 11 of their papers we have counts for
11 papers
Watt-class CMOS-compatible power amplifier
Neetesh Singh, Jan Lorenzen, Kai Wang +8
Power amplifier is becoming a critical component for integrated photonics as the integrated devices try to carve out a niche in the world of real-world applications of photonics. T…
Chip-scale, CMOS-compatible, high energy passively Q-switched laser
Neetesh Singh, Jan Lorenzen, Milan Sinobad +13
Chip-scale, high-energy optical pulse generation is becoming increasingly important as we expand activities into hard to reach areas such as space and deep ocean. Q-switching of th…
Soliton Pulses in Photonic Crystal Fabry-Perot Microresonators
Thibault Wildi, Mahmoud A. Gaafar, Thibault Voumard +2
Dissipative Kerr solitons (DKSs) in high-Q microresonators enable applications in sensing, communication, and signal processing. Until now, DKSs driven by continuous-wave (CW) lase…
Fourier optics with linearly tapered waveguides: light trapping and focusing
Mahmoud A. Gaafar, Hagen Renner, Manfred Eich +1
An optical pulse asymptotically reaching zero group velocity in tapered waveguides can ultimately stop at a certain position in the taper accompanied by a strong spatial compressio…
Optical Push Broom On a Chip
Mahmoud A. Gaafar, He Li, Xinlun Cai +3
Here we report the first experimental demonstration of light trapping by a refractive index front in a silicon waveguide, the optical push broom effect. The front generated by a fa…
Linear Schrödinger equation with temporal evolution for front induced transitions
Mahmoud A. Gaafar, Hagen Renner, Alexander Y. Petrov +1
The nonlinear Schrödinger equation based on slowly varying approximation is usually applied to describe the pulse propagation in nonlinear waveguides. However, for the case of the…