Intracavity gain shaping in millijoule-level, high gain Ho:YLF regenerative amplifiers
- 8 March 2016
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 41 (6) , 1114-1117
Abstract
We demonstrate intracavity gain shaping inside a 2 μm Ho:YLF regenerative amplifier with a spectral bandwidth of 2.9 nm broadened to 5.4 nm, corresponding to Fourier-limited pulses of 1 ps duration. The intracavity gain shaping is achieved by using a simple etalon, which acts as a frequency-selective filter. The output of the regenerative amplifier is amplified by a single-pass amplifier, and we achieve total energy of 2.2 mJ and pulse duration of 2.4 ps at 1 kHz with pulse fluctuations . The amplifier chain is seeded by a home-built mode-locked holmium-doped fiber oscillator.
Keywords
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