Regimes of bandwidth enhancement in coupled-cavity semiconductor laser using photon–photon resonance

MS Al-Ghamdi, H Dalir, A Bakry… - Japanese Journal of …, 2019 - iopscience.iop.org
In the last decade, different solutions were proposed to boost the transmission bitrate of
semiconductor lasers. Here, we focus on applying optical feedback to a semiconductor laser …

Enhancing the modulation bandwidth of VCSELs to the millimeter-waveband using strong transverse slow-light feedback

M Ahmed, A Bakry, MS Alghamdi, H Dalir… - Optics Express, 2015 - opg.optica.org
We present modeling on the millimeter (mm)-wave modulation of vertical-cavity surface-
emitting laser (VCSEL) with a transverse coupled cavity (TCC). We show that strong slow …

High frequency modulation of transverse-coupled-cavity VCSELs for radio over fiber applications

H Dalir, A Matsutani, M Ahmed, A Bakry… - IEEE Photonics …, 2013 - ieeexplore.ieee.org
We demonstrate a high-speed and efficient direct modulation of a novel transverse-coupled-
cavity vertical cavity surface emitting laser for radio over fiber applications. A bow-tie joint …

Achieving high power continuous wave and short pulses of semiconductor laser for use in photodynamic therapy: theoretical work

F AL-Shaikh, A El-Zarrad, M Ahmed - Journal of Computational Electronics, 2024 - Springer
The semiconductor laser (SCL) is a promising light source in photodynamic therapy (PDT).
Overcoming the limitation of the low-penetration depth of PDT and enhancing its therapeutic …

Influence of carrier transport on modulation characteristics of quantum-well semiconductor lasers

M Ahmed, M Al-Alhumaidi - Journal of Computational Electronics, 2023 - Springer
We discuss modeling the influence of carrier transport phenomena in quantum well (QW)
semiconductor lasers on the device's current modulation characteristics. The escape and …

Modelling of semiconductor laser with double external cavities for use in ultrahigh speed photonics

M Ahmed, A Bakry - Pramana, 2021 - Springer
We model and investigate the dynamics and modulation performance of semiconductor
laser integrated with two short external cavities facing the front and back facets with the aim …

Harmonic and intermodulation distortions and noise associated with two-tone modulation of high-speed semiconductor lasers

A Bakry, M Ahmed - Physics of Wave Phenomena, 2016 - Springer
We present results of modeling and simulation of the harmonic and intermodulation
distortions as well as the intensity noise of high-speed semiconductor lasers under two-tone …

Inducing tunable single-mode operation of Fabry-Perot semiconductor laser coupled with very-short cavity with selective optical feedback

MS Al-Ghamdi, A Bakry, M Ahmed - … of the European Optical Society-Rapid …, 2019 - Springer
We report on achieving tuned single mode operation of a multimode semiconductor laser by
coupling it to a very-short external cavity with selective feedback. We show that the induced …

Laser dynamics providing enhanced-modulation bandwidth

I Montrosset, P Bardella - Semiconductor Lasers and Laser …, 2014 - spiedigitallibrary.org
In the last decades, various solutions have been proposed to increase the modulation
bandwidth and consequently the transmission bit rate of integrated semiconductor lasers. In …

Intensity noise in ultra-high frequency modulated semiconductor laser with strong feedback and its influence on noise figure of RoF links

M Ahmed, A Bakry, R Altuwirqi… - Journal of the …, 2013 - jeos.edpsciences.org
We characterize the intensity noise associated with the ultra-high frequency direct
modulation of semiconductor lasers under strong optical feedback over a millimeter-wave …