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Updated: Jul 20, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
High-gain, polarization-preserving, Yb-doped fiber amplifier for low-duty-cycle pulse amplification
1Laboratory for Laser Energetics University of Rochester, New York 14623-1299, USA. johnm@lle.rochester.edu
Abstract:
Amplified spontaneous emission (ASE) suppression techniques were utilized to fabricate a double-pass, Yb-doped amplifier with the noise properties of a single-pass amplifier. Simulations based on a rate equation model were used to analyze the ASE and the effectiveness of the suppression techniques. These techniques were implemented in an alignment-free, double-pass, Yb-doped fiber amplifier with a 26 dB gain at a wavelength 23 nm off the gain peak and a -48 dB noise floor while amplifying linearly polarized optical pulses with a low-duty cycle.
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