scholarly journals Amplification of radially polarized ultra-short pulsed radiation to average output powers exceeding 250 W in a compact single-stage Yb:YAG single-crystal fiber amplifier

2020 ◽  
Vol 126 (9) ◽  
Author(s):  
Frieder Beirow ◽  
Michael Eckerle ◽  
Thomas Graf ◽  
Marwan Abdou Ahmed
Keyword(s):  
Single Crystal ◽  
Output Power ◽  
Average Output Power ◽  
Numerical Models ◽  
Beam Quality ◽  
Fiber Amplifier ◽  
Single Stage ◽  
Average Output ◽  
Crystal Fiber ◽  
Radially Polarized

Abstract A simple and compact single-stage Yb:YAG single-crystal fiber amplifier was setup to amplify 784 fs long seed pulses to an output energy of 6 $$\upmu$$ μ J and an average output power of 290 W. The experimental results are verified by numerical models to estimate the limitations of the SCF technology with regards to beam quality and average output power.

scholarly journals Radially polarized passively mode-locked thin-disk laser oscillator emitting sub-picosecond pulses with an average output power exceeding the 100 W level

2018 ◽  
Vol 26 (4) ◽  
pp. 4401 ◽  
Author(s):  
Frieder Beirow ◽  
Michael Eckerle ◽  
Benjamin Dannecker ◽  
Tom Dietrich ◽  
Marwan Abdou Ahmed ◽  
...  
Keyword(s):  
Output Power ◽  
Average Output Power ◽  
Thin Disk ◽  
Laser Oscillator ◽  
Average Output ◽  
Picosecond Pulses ◽  
Disk Laser ◽  
Thin Disk Laser ◽  
Radially Polarized

scholarly journals Picosecond Yb-doped tapered fiber laser system with 1.26 MW peak power and 200 W average output power

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Andrey Petrov ◽  
Maxim Odnoblyudov ◽  
Regina Gumenyuk ◽  
Lidiya Minyonok ◽  
Andrey Chumachenko ◽  
...  
Keyword(s):  
Output Power ◽  
Power Amplifier ◽  
Average Output Power ◽  
Peak Power ◽  
Beam Quality ◽  
Laser System ◽  
Practical Implementation ◽  
Average Output ◽  
Tapered Fiber ◽  
Polarization Maintaining

Abstract We demonstrate a compact picosecond master-oscillator power-amplifier (MOPA) system based on an Yb-doped polarization-maintaining double-clad tapered fiber (T-DCF) delivering pulses with over 1.26 MW peak power and average output power up to 200 W preserving near diffraction limited beam quality. The unique properties of an active tapered fiber enable to amplify the seed pulses directly with no need for applying of additional stretching technique. This simplified laser system can find the practical implementation in industrial micromachining.

Highly stable thin-disk multipass amplifier delivering 1kW of average output power with excellent beam quality

2021 ◽  
Author(s):  
Florian Bienert ◽  
Andre Leoscher ◽  
Christoph Rocker ◽  
Martin Gorjan ◽  
Jurg Aus-der-Au ◽  
...  
Keyword(s):  
Output Power ◽  
Average Output Power ◽  
Beam Quality ◽  
Thin Disk ◽  
Average Output ◽  
Multipass Amplifier
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