In July 2023, a team at Université Laval, Canada, reported the first fiber laser to produce femtosecond (fs) pulses in a visible wavelength. OPN got in touch with three researchers behind the work-Marie-Pier Lord, Michel Olivier and Real Vallee-for a walk-through of the laser setup....
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Femtosecond pulse visible laser processing of fibre composite materials. Appl. Surf. Sci. 106, 383–389 (1996). Article ADS Google Scholar Wise, F. W., Chong, A. & Renninger, W. H. High-energy femtosecond fiber lasers based on pulse propagation at normal dispersion. Laser Photonics Rev....
The silica core in combination with a small mode area of the fiber has simplified the use of a low-power cw laser for pumping and has ensured the generation rate comparable with those reached with pulsed femtosecond laser sources. The latter circumstance is of high interest for the fab- ri...
fiber laser is modulated by an electro-optic PM before coupling to a YDFA. The pump light is then coupled to the resonator using a tapered fiber. Part of the comb power is used to servo-control the pump laser frequency.dOptical spectra of solitons at 1064 nm generated from the mode ...
The femtosecond-laser writes the patterns by changing the phase of GST-225 to record grayscale patterns consisting of crystalline nanomarks with a diffraction limited resolution (0.59 μm). In this work, using the reconfigurable platform, meta-lenses are patterned with capability to produce two ...
femtosecond Ti:sapphire laser if the average cw pump power is an order of magnitude higher than the average pulsed pump power. The reached rates of photon generation are ensured by the used photonic-crystal fiber with a small effective mode area and a special dispersion profile. The reached ...
That portion of the spectrum that the eye can see — and its rainbow of colors — is rather small, covering approximately 360 to 830 nm. What colors we perceive depends on wavelength, while... Photonics Handbook Laser Safety: Important Considerations ...
Using high repetition rate femtosecond DLW, the inscription of 3D visible and near-infrared fluorescent patterns formed by co-localization of silver cluster and Yb3+ ions was demonstrated. The local refractive index change associated with the formation of silver clusters is dependent on the laser ...
In the CW deflection and hologram experiments, a CW output at 730–800 nm was obtained from a Griffin Ti–Sapphire femtosecond laser (KM-Labs, Inc.) by setting the laser to work in the CW mode. The wavelength was tunable from 730 to 860 nm. The CW at 632.8 nm was from a ...