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Ultrafast lasers with multi-GHz repetition rates can have applications in areas such as biophotonics, optical frequency metrology, optical sampling, optical communications and as astro-combs. Ultrafast waveguide lasers with monolithically integrated saturable absorber elements are very promising candidates for multi-GHz operation, benefiting from a low-threshold mode-locked operation and high efficiency...
In this report we have presented a spectroscopic and CW laser characterization of an efficient thulium doped GPNG bulk germanate glass pumped at 792 nm by Ti: Sapphire radiation. Laser characterization gave a maximum slope efficiency of 50 % comparable to the crystalline counterparts and we believe, to the best of our knowledge, this being the best for Tm-doped bulk glass lasers. The maximum output...
Here we report on the growth of a novel Tm,Ho:KYW laser crystal, together with its spectroscopic properties and lasing characteristics obtained using cw Ti: sapphire laser pumping at room temperature.
Femtosecond operation of a solid-state laser passively mode locked by a quantum-dot saturable absorber has been demonstrated. Controllability of the pulse duration is demonstrated with pulses ranging from 58 ps to 158 fs around 1280 nm.
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