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20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
80 W, 120 fs Yb-fiber frequency comb
Axel Ruehl1, Andrius Marcinkevicius, Martin E Fermann
1IMRA America, Inc., 1044 Woodridge Avenue, Ann Arbor, Michigan 48105, USA. aruehl@imra.com
Optics Letters
|September 18, 2010
Summary
We developed a high-power fiber frequency comb capable of 80 W linear chirped-pulse amplification, producing 120 fs pulses. This system is suitable for generating vacuum and extreme-UV frequency combs.
Area of Science:
- Laser Physics
- Quantum Optics
- Fiber Optics
Background:
- Fiber frequency combs are crucial for precision measurements.
- High-power operation is essential for advanced applications like extreme ultraviolet (XUV) generation.
- Chirped-pulse amplification (CPA) is a key technique for generating ultrashort, high-energy pulses.
Purpose of the Study:
- To demonstrate a high-power fiber frequency comb system.
- To achieve ultrashort pulse generation with high power.
- To validate the system's suitability for vacuum and XUV frequency comb generation.
Main Methods:
- Linear chirped-pulse amplification (CPA) up to 80 W.
- Utilizing a fiber stretcher and compressor with precise group delay matching.
- Implementing carrier envelope offset self-referencing and phase locking to an RF reference.
Main Results:
- Achieved 80 W output power with linear CPA.
- Generated pulses with a duration of 120 fs.
- Attained a pulse compression ratio of 3100.
- Demonstrated carrier envelope offset self-referencing and phase locking.
Conclusions:
- The developed fiber frequency comb system delivers high power and ultrashort pulses.
- The system's performance is suitable for generating vacuum and XUV frequency combs.
- Precise group delay matching is critical for achieving high compression ratios.
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