5 papers · 1 filter
Influence of Asymmetric Gain Suppression on Relative Intensity Noise Properties of Multimode Semiconductor Lasers
Ahmed Bakry, Ahmed Alshahrie, Alaa Mahmoud +2
We introduce modeling and simulation of the noise properties associated with types of modal oscillations induced by scaling the asymmetric gain suppression (AGS) in multimode semic…
Stabilizing Multimode Hopping Oscillations and Reducing Associated Noise in Long Wavelength Laser Diode Using External Optical Feedback
Moustafa Ahmed, Ahmed Bakry, Ahmed Alshahrie +1
We report on converting the multimode hopping oscillation (MHO) in long-wavelength semiconductor laser into single-mode oscillation (SMO) by applying external optical feedback (OFB…
Transverse Coupled Cavity VCSEL: Making 100 GHz Bandwidth Achievable
Moustafa Ahmed, Ahmed Bakry, Ahmed Alshahrie +1
Enhancing the modulation bandwidth (MBW) of semiconductor lasers has been the challenge of research and technology to meet the need of high-speed photonic applications. In this pap…
Integrated Photonic FFT for Optical Convolutions towards Efficient and High-Speed Neural Networks
Moustafa Ahmed, Yas Al-Hadeethi, Ahmed Bakry +2
The technologically-relevant task of feature extraction from data performed in deep-learning systems is routinely accomplished as repeated fast Fourier transforms (FFT) electronica…
Scattering properties of PT-symmetric objects
Mohammad-Ali Miri, Mohammad Amin Eftekhar, Margarida Facao +6
We investigate the scattering response of parity-time (PT) symmetric structures. We show that, due to the local flow of energy between gain and loss regions, such systems can defle…