Actively pulse-shaped linearly polarized 200 W photonic crystal fiber MOPA at 2048 nm with 2 mJ pulse energy
A pulsed high-power fiber master oscillator power amplifier (MOPA) based on a Tm 3+ -doped photonic crystal fiber (PCF) with a core diameter of 50 μm is reported. Active pulse shaping allows the generation of close to rectangular-shaped pulses with pulse energies of 2.07 mJ, pulse durations of 49 ns, and peak powers of 52 kW at a pulse repetition rate (PRR) of 100 kHz leading to an average output power of 207 W. The linearly polarized output signal has a narrow 10-dB linewidth of 390 pm at a central emission wavelength of 2048 nm and a nearly diffraction-limited beam quality ( M 2 < 1.3).
Authors
- Clément Romano (ORCID: https://orcid.org/0000-0002-3606-4706)
- Christelle Kieleck
- Jan Lautenschläger (ORCID: https://orcid.org/0000-0001-7709-4525)
- Dieter Panitzek (ORCID: https://orcid.org/0009-0000-3700-9314)
- Marc Eichhorn
- Julian Schneider (ORCID: https://orcid.org/0000-0002-3052-2622)
- Dominik Lorenz (ORCID: https://orcid.org/0000-0003-4132-2586)
Institutions
- Karlsruhe Institute of Technology (DE)
- Fraunhofer Institute of Optronics, System Technologies and Image Exploitation (DE)
Publication Details
- Journal
- Optics Letters
- Published
- 2025-05-19
- DOI
- https://doi.org/10.1364/ol.562668
- Citations
- 1
- Primary Topic
- Photonic Crystal and Fiber Optics
- Type
- article
- Field-Weighted Citation Impact
- 0.73
Funders
- Bundesamt für Ausrüstung, Informationstechnik und Nutzung der Bundeswehr
- Bundesministerium der Verteidigung