We demonstrate a compact diode-pumped Yb:YAG Innoslab femtosecond oscillator-amplifier system with nearly transform and diffraction limited 636 fs pulses at 620 W average output power and 20 MHz repetition rate. By cascading two amplifiers an output power of 1.1 kW and peak power of 80 MW is achieved. To our knowledge this is the highest average power for fs-pulses reported up to now. The system is operated at room temperature and no CPA technique is used.
REFERENCES
1.
T.
Eidam
, S.
Hanf
, E.
Seise
, T. V.
Andersen
, T.
Gabler
, C.
Wirth
, T.
Schreiber
, J.
Limpert
, and A.
Tünnermann
, “Femtosecond fiber CPA system emitting 830 W average output power
,” Opt. Lett.
35
, 94
–96
(2010
)2.
P.
Russbueldt
, T.
Mans
, G.
Rotarius
, J.
Weiten-berg
, H. D.
Hoffmann
, and R.
Poprawe
, “400W Yb:YAG Innoslab fs-Amplifier
,” Opt. Express
17
, 12230
–12245
(2009
)3.
T.
Südmeyer
, S.V.
Marchese
, S.
Hashimoto
, C. R. E.
Baer
, G.
Gingras
, B.
Witzel
, U.
Keller
, “Femto-second laser oscillators for high-field science
,” Nat. Photon.
2
, 599
–604
(2008
)4.
Ancona
, F.
Röser
, K.
Rademaker
, J.
Limpert
, S.
Nolte
, and A.
Tünnermann
, “High speed laser drilling of metals using a high repetition rate, high average power ultrafast fiber CPA system
,” Opt. Express
16
, 8958
–8968
(2008
)5.
Tünnermann
, S.
Nolte
, J.
Limpert
, “Femtosecond vs. Picosecond Laser Material Processing
,” Laser Techn. J.
1
, 34
–38
(2010
)6.
T.
Eidam
, S.
Hädrich
, F.
Röser
, E.
Seise
, T.
Gottschall
, J.
Rothhardt
, T.
Schreiber
, J.
Limpert
, and A.
Tünnermann
, IEEE J. Sel. Top. Quantum Electron.
15
, 187
(2009
)7.
Y.
Jeong
, J. K.
Sahu
, D. N.
Payne
, J.
Nilsson
, “Ytterbium-doped large-core fiber laser with 1.36 kW continuous-wave output power
,” Opt. Expr.
12
, 6088
–6092
(2004
)8.
Giesen J.
Speiser
, “Fifteen Years of Work on Thin-Disk Lasers: Results and Scaling Laws
,” IEEE J. Sel. Top. Quantum Electron.
13
, 598
–609
(2007
)9.
Luther-Davies
, V.Z.
Kolev
, M.J.
Lederer
, N.R.
Madsen
, A.V.
Rode
, J.
Giesekus
, K.M.
Du
, M.
Duering
, “Table-top 50-W laser system for ultra-fast laser ablation
,” J. Appl. Phys. A
00
, 1
–5
(2004
)10.
Y.
Deng
, C.-Y.
Chien
, B. G.
Fidric
, and J. D.
Kafka
, “Generation of sub-50 fs pulses from a high-power Yb-doped fiber amplifier
, ” Opt. Lett.
32
, 3469
–3471
(2009
)11.
S.
Hädrich
, T.
Schreiber
, T.
Pertsch
, J.
Limpert
, T.
Peschel
, R.
Eberhardt
, A.
Tünnermann
, “Thermo-optical behavior of rare-earth-doped low-NA fibers in high power operation
,” Opt. Expr.
14
, 6091
–6097
(2006
)12.
F.
Röser
, T.
Eidam
, J.
Rothard
, O.
Schmidt
, D.N.
Schimpf
, J.
Limpert
, and A.
Tünnermann
, “Millijoule pulse energy high repetition rate femtosecond fiber chirped-pulse amplification system
,” Opt. Lett.
32
, 3495
–3497
(2007
)13.
Stolzenburg
and A.
Giesen
, “Picosecond Regenerative Yb:YAG Thin Disk Amplifier at 200 kHz Repetition Rate and 62 W Output Power
,” Advanced Solid-State Photonics
, OSA Tech. Digest, MA6 (2007
).14.
Steinmann
, A.
Killi
, G.
Palmer
, T.
Binhammer
, and U.
Morgner
, “Generation of few-cycle pulses directly from a MHz-NOPA
,” Opt. Express
14
, 10627
–10630
(2006
)15.
F.
Tavella
, A.
Marcinkevicius
, F.
Krausz
, “90 mJ parametric chirped pulse amplification of 10 fs pulses
,” Opt. Express
14
, 12822
–12827
(2006
)
This content is only available via PDF.
© 2010 Laser Institute of America.
2010
Laser Institute of America
You do not currently have access to this content.