Although the first lasers invented operated in the visible, the first on-chip devices were
optimized for near-infrared (IR) performance driven by demand in telecommunications …

We designed, fabricated and tested gallium phosphide (GaP) nano-waveguides for second
harmonic generation (SHG). We demonstrate SHG in the visible range around 655 nm using …

This paper presents the recent progress on integrated second‐order nonlinear waveguides
on silicon substrates for second‐harmonic generation. In particular, demonstrations of thin …

Quantum key distribution (QKD) and quantum random number generation (QRNG) will play
a key role in the future of data communication security. QKD can be used by trusted parties …

In this research, an AlGaAs film was deposited on a microscope slide by means of the
thermionic vacuum arc (TVA) technique which is a novel plasma production technique …

In order to obtain a modulation signal with high bandwidth and highly stable output power
without distortion, an electro-optic modulator driving system with quick response to the input …

We propose an original architecture for a monolithic electrically injected optical parametric
oscillator based on a high-power distributed feedback laser diode and a nonlinear …

Since the demonstration of second-harmonic generation (SHG) in 1961, nonlinear optics
has been an important branch of optics research. Generation of new optical frequencies is …

Photonic quantum technologies represent a promising platform for several quantum
information applications, ranging from long-distance communications to the simulation of …

Conventional silicon-based electronics have developed dramatically in recent years;
however, their optimum integration level is reaching its limits. To meet the requirements of …