The laser operates in fundamental mode with beam quality M2 < 1.05 for both beams. The beam shape is recorded at the output of the oscillator (magnified image of the output coupler) on a WinCamD-LCM-NE 1” beam profiler at the nominal operation point of the laser with 3.7 A pump current, approx. 7.8 W total pump power and 440 mW average output power from each comb.

Single laser emits high-power dual comb femtosecond pulses

The new development paves the way for portable dual-comb light sources for applications such as spectroscopy and precision distance measurement

Faccio, centre, working on laser system alignment and optimisation with student Mihail Petev, left, and Niclas Westerberg

$1m programme to support early-career quantum researchers

SPIE and the University of Glasgow have established a $1 million programme to support graduate students in the field of quantum photonics

The authors suggest that placing UVC light sources at ventilation systems and rooms not in use, without direct optical paths to humans, helps reduce virus propagation. Credit: Nacho Gaubert

Researchers advocate for use of UV light in Covid-19 disinfection

A study involved experts in the fields of virology, immunology, aerosols, architecture, and physics, analyse possible methods to prevent Sars-Cov-2 propagation indoors


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