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THORA 2050 – ultrafast high-energy 2 µm Ho:YLF laser

for mid-IR OPCPA, high-harmonic generation (HHG), and advanced spectroscopy.
  • Central Wavelength: 2050 nm
  •  Pulse Energy: up to 100 mJ
  •  Average Power: up to 100 W
  •  Pulse Duration: < 3 ps

Introduction

THORA 2050: A Multi-Gigawatt Ho:YLF Laser System

The World’s Most Powerful High-Energy 2-micron Picosecond Laser for Ultrafast Science and Advanced Manufacturing

Until now, high-field science and advanced manufacturing have lacked a commercially available 2-micron laser source capable of delivering 20–100 mJ pulse energies with kHz-level repetition rates, all while maintaining the stability and uptime necessary for reliable, long-term operation. THORA 2050 addresses this challenge by introducing the world’s most powerful ultrafast Ho:YLF laser platform, delivering multi-gigawatt peak power with selectable pulse energies of 20 mJ, 60 mJ, or 100 mJ at a 2050 nm central wavelength and sub-3 picosecond pulses.

Co-developed with the Max-Born-Institute (MBI) in Berlin, THORA 2050’s architecture combines medical-grade seed stability, industrial-grade Thulium-fiber pumping, and an innovative bifurcation optimized Ho:YLF regenerative amplifier. THORA 2050 is optimized for high performance and long-term operational reliability, while offering three different power levels 20 W, 60 W (Pro) and 100 W (Ultra). Furthermore, as air is transparent at 2.05 µm, THORA 2050 offers straightforward integration, simplifies beamlines, and maximizes energy transmission to the target.

THORA 2050 sets a new threshold in high-energy ultrafast laser design. It is ideally suited for infrared OPCPA systems spanning the 3–9 µm range, attosecond science, EUV/XUV generation, mid-IR high-harmonic generation (HHG), as well as research in ultrafast plasma interactions, particle acceleration, and ultrafast X-ray generation — setting a new benchmark in high-energy mid-infrared performance.

What sets THORA 2050 apart is its unique combination of wavelength, energy, and stability. The 2050 nm mid-infrared wavelength offers superior absorption characteristics, enabling unparalleled interaction with materials and tissues. And its bifurcation-optimized Ho:YLF regenerative amplifier, perfected over more than two decades of development at MBI, ensures exceptional beam quality and sub-0.2% RMS energy stability. These performance metrics were previously unattainable in this power class.

Contact us today to learn how THORA 2050 can push the boundaries of your research and manufacturing!

Features

High Energy & Average Power

THORA 2050 delivers up to 100 mJ pulse energy at a 1 kHz repetition rate, making it the most powerful commercially available 2050 nm picosecond laser on the market today.

High Precision & Reliability

Built around a medical-grade seed laser and industrial-grade thulium-fiber pump lasers, THORA 2050 achieves <0.2% RMS pulse-to-pulse energy stability, ensuring consistent, long-term performance.

High Air Transmission

With a central wavelength of 2050 nm, THORA 2050 operates within the natural transmission window of ambient air. No vacuum required for efficient beam transport.

Scalable, Modular Configuration

Flexible performance levels with optional booster amplifier stages, delivering 20 mJ, 60 mJ, or up to 100 mJ pulse energies, combined with an efficient compressor design.

Specs

 THORA 2050  THORA 2050 Pro  THORA 2050 Ultra
 Pulse duration (FWHM) < 3 ps < 3 ps < 3 ps
Central wavelength 2050 nm 2050 nm 2050 nm
Pulse energy (compressed) > 20 mJ > 60 mJ > 100 mJ
Average power > 20 W  > 60 W > 100 W
Repetition rate 1 kHz 1 kHz 1 kHz
Beam quality ()  < 1.3 < 1.3 < 1.3
 Power stability (12 h) < 1% < 1 % < 1 %
Energy stability (pulse-to-pulse) < 0.2% < 0.2% < 0.2%
Dimensions 2.1 m x 1.35 m 2.1 m x 1.35 m 2.1 m x 1.35 m


Applications

  • Ultrafast Hard X-Ray Generation.
  • Mid-Infrared OPCPA Pumping – Delivers high-energy seed and pump pulses for broadband OPCPA systems spanning the 3–9 µm range.
  • Advanced manufacturing for precise polymer, glass, & ceramic processing via 2050 nm absorption.
  • Laser-plasma interactions & breakdown spectroscopy.
  • Powerful laser platform for advanced remote sensing applications.

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FAQ

What are the main applications for the THORA 2050 laser?

THORA 2050 enables advanced manufacturing of polymers, glasses, and ceramics through efficient 2050 nm absorption, drives laser-plasma interactions and ultrafast hard X-ray generation, supports midinfrared OPCPA pumping across the 3–9 µm range, and opens new possibilities in remote sensing and high-field science.

What makes THORA 2050 unique compared to other 2-micron lasers on the market?

THORA 2050 stands out as the most powerful and stable 2-micron ultrafast laser on the market, delivering up to 100 W average power with 100 mJ pulse energy, and sub-3 ps pulses with <0.2% energy stability.

What is the typical pulse duration and repetition rate of the THORA 2050 laser?

Typical pulse duration is <3 ps. Shorter sub-picosecond versions are possible on custom request. The typical repetition rate is 1 kHz, with pulse picking available. Higher repetition rates up to 10 kHz are also available on request.

What kind of amplifier architecture does the THORA 2050 laser use?

THORA 2050 incorporates a bifurcation-optimized Ho:YLF regenerative amplifier developed over more than 20 years at the Max-Born-Institute, a medical-grade fiber laser front-end, industrial-grade thulium fiber pump lasers, and an innovative high-throughput CPA design for maximum energy efficiency and stability.

What are the available power configurations for the THORA 2050 laser?

THORA is offered in three unique power configurations: the THORA 2050, delivering 20 mJ pulse energy, the THORA 2050 Pro, providing 60 mJ; and the THORA 2050 Ultra, offering 100 mJ pulse energy.


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