The terahertz (THz) frequency range, spanning from 0.1 to 10.0 THz, is a field ripe for
innovation with vast, developing potential in areas like wireless communication and …

We have used a rate equation propagation model of an Er 3+/Yb 3+ doped Al 2 O 3
waveguide amplifier with copropagating pump at 980 nm to investigate the dependence of …

Tunable dual-frequency oscillation is demonstrated in a vertical external-cavity surface-
emitting laser. Simultaneous and robust oscillation of the two orthogonally polarized …

A review is provided of sources and detectors that can be employed in the THz range before
the description of an opto-electronic source of monochromatic THz radiation. The realized …

We propose an optoelectronic phase-locked loop concept which enables to stabilize optical
beat notes at high frequencies in the mm-wave domain. It relies on the use of a nonlinear …

An optical source of microwaves with very low phase noise for communications and radar
systems is realized and tested. It is obtained by dual-frequency operation of a diode pumped …

A dual-frequency 1.55 µm laser for CW low noise microwave, millimeter and sub millimeter
wave synthesis is demonstrated, where frequency stabilization is possible on each …

A diode-pumped KGd (WO^ sub 4^)^ sub 2^ Yb^ sup 3+^ doped laser has been developed
for CW-THz generation. The frequency difference between the two modes is step tunable …

An Er^ 3+: Yb^ 3+: LuAl_3 (BO_3) _4 crystal doped with 24.1 at.% Yb^ 3+ and 1.1 at.% Er^
3+ ions was grown by the flux method. The polarized spectroscopic properties related to the …

A fast tunable dual-wavelength laser based on in-fiber acousto-optic Mach-Zehnder
interferometer (AO-MZI) with new fabrication process is proposed. Not only could the center …