LED-pumped femtosecond Cr:LiSAF regenerative amplifier system | Zendy

Hussein Taleb | Zendy; Pierre Pichon | Zendy; Frédéric Druon | Zendy; François Balembois | Zendy; Patrick Georges | Zendy

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LED-pumped femtosecond Cr:LiSAF regenerative amplifier system

Author(s) -

Hussein Taleb,

Pierre Pichon,

Frédéric Druon,

François Balembois,

Patrick Georges

Publication year - 2021

Publication title -

optics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.424313

Subject(s) - materials science , regenerative amplification , femtosecond , optics , amplifier , optoelectronics , laser , sapphire , optical amplifier , physics , cmos

We report on the first, to the best of our knowledge, LED-pumped femtosecond regenerative amplifier. It is based on a Cr:LiSAF crystal pumped by 2240 blue LEDs via a Ce:YAG luminescent concentrator. The amplifier was seeded by pulses from a Ti:sapphire oscillator at 835 nm temporally stretched from 90 fs to 100 ps. At the output of the regenerative amplifier, we obtain 1 mJ pulse energy at a 10 Hz repetition rate, given by the frequency of the LED-pumping module. After compression, we obtain 100 fs pulses with a spectral bandwidth of 10 nm at 835 nm.

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