Mohsin Haji

TL;DR: In this article, the authors presented a visible light communication (VLC) system based on a single 50-μm gallium nitride light emitting diode (LED) with a 3-dB modulation bandwidth of at least 60 MHz.

TL;DR: An improved optical feedback architecture is proposed using an optical fiber loop delay as a cavity extension of the mode-locked laser to achieve a record low radio frequency linewidth of 192 Hz, promising for the development of high frequency optoelectronic oscillators.

TL;DR: A novel 40 GHz passively mode-locked AlGaInAs/InP 1.55 μm laser with a low divergence angle, timing jitter of 1.2 ps, and a radio frequency linewidth of 25 kHz is demonstrated.

TL;DR: A laterally coupled 1.55 μm AlGaInAs/InP distributed feedback laser monolithically integrated with a curved tapered optical amplifier providing an output power of 210 mW with single transverse and longitudinal mode operation exhibiting a record low linewidth of 64 kHz.

TL;DR: In this paper, a monolithic integration of four 1.50-μm range AlGaInAs/InP distributed feed-back lasers with a 4 × 1 multimode-interference optical combiner, a curved semiconductor optical amplifier and an electroabsorption modulator using relatively simple technologies-sidewall grating and quantum well intermixing-has been demonstrated.