Abstract

We report on the first mode-locked thin disk laser based on Yb:LuScO3. This new mixed gain material combines the emission peaks of two sesquioxides, leading to a gain bandwidth of more than 20 nm. We achieve 7.2 W average output power in 227-fs pulses, which is shorter than for any previous ultrafast thin disk laser. The output power was limited by a growth defect near the center of the thin disk.

© 2009 OSA

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  1. A. Giesen, H. Hügel, A. Voss, K. Wittig, U. Brauch, and H. Opower, “Scalable Concept for Diode-Pumped High-Power Solid-State Lasers,” Appl. Phys. B 58, 365–372 (1994).
  2. A. Giesen and J. Speiser, “Fifteen Years of Work on Thin-Disk Lasers: Results and Scaling Laws,” IEEE J. Sel. Top. Quantum Electron. 13(3), 598–609 (2007).
    [CrossRef]
  3. U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönninger, N. Matuschek, and J. Aus der Au, “Semiconductor saturable absorber mirrors (SESAMs) for femtosecond to nanosecond pulse generation in solid-state lasers,” IEEE J. Sel. Top. Quantum Electron. 2(3), 435–453 (1996).
    [CrossRef]
  4. T. Südmeyer, S. V. Marchese, S. Hashimoto, C. R. E. Baer, G. Gingras, B. Witzel, and U. Keller, “Femtosecond laser oscillators for high-field science,” Nat. Photonics 2(10), 599–604 (2008).
    [CrossRef]
  5. E. Innerhofer, T. Südmeyer, F. Brunner, R. Paschotta, and U. Keller, “Mode-locked high-power lasers and nonlinear optics - a powerful combination,” Laser Phys. Lett. 1(2), 82–85 (2004).
    [CrossRef]
  6. S. V. Marchese, C. R. E. Baer, A. G. Engqvist, S. Hashimoto, D. J. H. C. Maas, M. Golling, T. Südmeyer, and U. Keller, “Femtosecond thin disk laser oscillator with pulse energy beyond the 10-microjoule level,” Opt. Express 16(9), 6397–6407 (2008).
    [CrossRef] [PubMed]
  7. J. Neuhaus, D. Bauer, J. Zhang, A. Killi, J. Kleinbauer, M. Kumkar, S. Weiler, M. Guina, D. H. Sutter, and T. Dekorsy, “Subpicosecond thin-disk laser oscillator with pulse energies of up to 25.9 microjoules by use of an active multipass geometry,” Opt. Express 16(25), 20530–20539 (2008).
    [CrossRef] [PubMed]
  8. E. Innerhofer, F. Brunner, S. V. Marchese, R. Paschotta, U. Keller, K. Furusawa, J. C. Baggett, T. M. Monro, and D. J. Richardson, “32 W of average power in 24-fs pulses from a passively mode-locked thin disk laser with nonlinear fiber compression,” presented at Advanced Solid-State Photonics (ASSP), (Vienna, Austria, 2005), paper TuA3.
  9. T. Südmeyer, F. Brunner, E. Innerhofer, R. Paschotta, K. Furusawa, J. C. Baggett, T. M. Monro, D. J. Richardson, and U. Keller, “Nonlinear femtosecond pulse compression at high average power levels by use of a large-mode-area holey fiber,” Opt. Lett. 28(20), 1951–1953 (2003).
    [CrossRef] [PubMed]
  10. H. Liu, J. Nees, and G. Mourou, “Diode-pumped Kerr-lens mode-locked Yb:KY(WO(4))(2) laser,” Opt. Lett. 26(21), 1723–1725 (2001).
    [CrossRef]
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    [CrossRef]
  13. S. Biswal, S. P. O’Connor, and S. R. Bowman, “Thermo-optical parameters measured in ytterbium-doped potassium gadolinium tungstate,” Appl. Opt. 44(15), 3093–3097 (2005).
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    [CrossRef] [PubMed]
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  21. V. E. Kisel, N. A. Tolstik, A. E. Troshin, N. V. Kuleshov, V. N. Matrosov, T. A. Matrosova, M. I. Kupchenko, F. Brunner, R. Paschotta, F. Morier-Genoud, and U. Keller, “Spectroscopy and femtosecond laser performance of Yb3+:Gd0.64Y0.36VO4 crystal,” Appl. Phys. B 85(4), 581–584 (2006).
    [CrossRef]
  22. C. Cascales, A. Méndez Blas, M. Rico, V. Volkow, and C. Zaldo, “The optical spectroscopy of lanthanides R3+ in ABi(XO4)2 (A = Li, Na; X = Mo, W) and LiYb(MoO4)2 multifunctional single crystals: Relationship with the structural local disorder,” Opt. Mater. 27(11), 1672–1680 (2005).
    [CrossRef]
  23. R. Peters, K. Beil, C. Kränkel, K. Schenk, K. Petermann, and G. Huber, “Ytterbium-doped Sesquioxides for High-Power Solid-State Lasers: Recent Progress in Crystal Growth and Laser Operation,” presented at Conference on Lasers and Electro-Optics (Europe), (Munich, Germany, 2009), paper CA9.1.
  24. R. Peters, K. Petermann, and G. Huber, “A New Mixed Sesquioxide Yb:LuScO3: Spectroscopic Properties and Highly Efficient Thin-Disk Laser Operation,” presented at Advanced Solid-State Photonics (ASSP), (Denver, USA, 2009), paper MC4.
  25. A. Schmidt, X. Mateos, V. Petrov, U. Griebner, R. Peters, K. Petermann, G. Huber, A. Klehr, and G. Erbert, “Passively Mode-Locked Yb:LuScO3 Oscillator,” presented at Advanced Solid-State Photonics, (Denver, USA, 2009), paper MB12.
  26. R. Peters, C. Kränkel, K. Petermann, and G. Huber, “Crystal growth by the heat exchanger method, spectroscopic characterization and laser operation of high-purity Yb:Lu2O3,” J. Cryst. Growth 310(7-9), 1934–1938 (2008).
    [CrossRef]
  27. F. X. Kärtner and U. Keller, “Stabilization of soliton-like pulses with a slow saturable absorber,” Opt. Lett. 20, 16–18 (1995).
    [CrossRef] [PubMed]
  28. M. Haiml, R. Grange, and U. Keller, “Optical characterization of semiconductor saturable absorbers,” Appl. Phys. B 79(3), 331–339 (2004).
    [CrossRef]
  29. F. X. Kärtner, J. Aus der Au, and U. Keller, “Modelocking with slow and fast saturable absorbers - What's the difference?” IEEE J. Sel. Top. Quantum Electron. 4(2), 159–168 (1998).
    [CrossRef]
  30. R. Paschotta and U. Keller, “Passive mode locking with slow saturable absorbers,” Appl. Phys. B 73(7), 653–662 (2001).
    [CrossRef]
  31. G. R. Holtom, “Mode-locked Yb:KGW laser longitudinally pumped by polarization-coupled diode bars,” Opt. Lett. 31(18), 2719–2721 (2006).
    [CrossRef] [PubMed]
  32. G. Palmer, M. Schultze, M. Siegel, M. Emons, U. Bünting, and U. Morgner, “Passively mode-locked Yb:KLu(WO4)2 thin-disk oscillator operated in the positive and negative dispersion regime,” Opt. Lett. 33(14), 1608–1610 (2008).
    [CrossRef] [PubMed]

2009

2008

R. Peters, C. Kränkel, K. Petermann, and G. Huber, “Crystal growth by the heat exchanger method, spectroscopic characterization and laser operation of high-purity Yb:Lu2O3,” J. Cryst. Growth 310(7-9), 1934–1938 (2008).
[CrossRef]

G. Palmer, M. Schultze, M. Siegel, M. Emons, U. Bünting, and U. Morgner, “Passively mode-locked Yb:KLu(WO4)2 thin-disk oscillator operated in the positive and negative dispersion regime,” Opt. Lett. 33(14), 1608–1610 (2008).
[CrossRef] [PubMed]

T. Südmeyer, S. V. Marchese, S. Hashimoto, C. R. E. Baer, G. Gingras, B. Witzel, and U. Keller, “Femtosecond laser oscillators for high-field science,” Nat. Photonics 2(10), 599–604 (2008).
[CrossRef]

S. V. Marchese, C. R. E. Baer, A. G. Engqvist, S. Hashimoto, D. J. H. C. Maas, M. Golling, T. Südmeyer, and U. Keller, “Femtosecond thin disk laser oscillator with pulse energy beyond the 10-microjoule level,” Opt. Express 16(9), 6397–6407 (2008).
[CrossRef] [PubMed]

J. Neuhaus, D. Bauer, J. Zhang, A. Killi, J. Kleinbauer, M. Kumkar, S. Weiler, M. Guina, D. H. Sutter, and T. Dekorsy, “Subpicosecond thin-disk laser oscillator with pulse energies of up to 25.9 microjoules by use of an active multipass geometry,” Opt. Express 16(25), 20530–20539 (2008).
[CrossRef] [PubMed]

M. Tokurakawa, A. Shirakawa, K. Ueda, H. Yagi, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Diode-pumped 65 fs Kerr-lens mode-locked Yb(3+):Lu(2)O(3) and nondoped Y(2)O(3) combined ceramic laser,” Opt. Lett. 33(12), 1380–1382 (2008).
[CrossRef] [PubMed]

2007

2006

V. E. Kisel, N. A. Tolstik, A. E. Troshin, N. V. Kuleshov, V. N. Matrosov, T. A. Matrosova, M. I. Kupchenko, F. Brunner, R. Paschotta, F. Morier-Genoud, and U. Keller, “Spectroscopy and femtosecond laser performance of Yb3+:Gd0.64Y0.36VO4 crystal,” Appl. Phys. B 85(4), 581–584 (2006).
[CrossRef]

G. R. Holtom, “Mode-locked Yb:KGW laser longitudinally pumped by polarization-coupled diode bars,” Opt. Lett. 31(18), 2719–2721 (2006).
[CrossRef] [PubMed]

2005

C. Cascales, A. Méndez Blas, M. Rico, V. Volkow, and C. Zaldo, “The optical spectroscopy of lanthanides R3+ in ABi(XO4)2 (A = Li, Na; X = Mo, W) and LiYb(MoO4)2 multifunctional single crystals: Relationship with the structural local disorder,” Opt. Mater. 27(11), 1672–1680 (2005).
[CrossRef]

S. Biswal, S. P. O’Connor, and S. R. Bowman, “Thermo-optical parameters measured in ytterbium-doped potassium gadolinium tungstate,” Appl. Opt. 44(15), 3093–3097 (2005).
[CrossRef] [PubMed]

2004

E. Innerhofer, T. Südmeyer, F. Brunner, R. Paschotta, and U. Keller, “Mode-locked high-power lasers and nonlinear optics - a powerful combination,” Laser Phys. Lett. 1(2), 82–85 (2004).
[CrossRef]

M. Haiml, R. Grange, and U. Keller, “Optical characterization of semiconductor saturable absorbers,” Appl. Phys. B 79(3), 331–339 (2004).
[CrossRef]

2003

2002

2001

A. A. Kaminskii, A. F. Konstantinova, V. P. Orekhova, A. V. Butashin, R. F. Klevtsova, and A. A. Pavlyuk, “Optical and Nonlinear Laser Properties of the χ(3)-Active Monoclinic α-KY(WO4)2 Crystals,” Crystallogr. Rep. 46(4), 665–672 (2001).
[CrossRef]

H. Liu, J. Nees, and G. Mourou, “Diode-pumped Kerr-lens mode-locked Yb:KY(WO(4))(2) laser,” Opt. Lett. 26(21), 1723–1725 (2001).
[CrossRef]

R. Paschotta and U. Keller, “Passive mode locking with slow saturable absorbers,” Appl. Phys. B 73(7), 653–662 (2001).
[CrossRef]

1998

F. X. Kärtner, J. Aus der Au, and U. Keller, “Modelocking with slow and fast saturable absorbers - What's the difference?” IEEE J. Sel. Top. Quantum Electron. 4(2), 159–168 (1998).
[CrossRef]

1996

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönninger, N. Matuschek, and J. Aus der Au, “Semiconductor saturable absorber mirrors (SESAMs) for femtosecond to nanosecond pulse generation in solid-state lasers,” IEEE J. Sel. Top. Quantum Electron. 2(3), 435–453 (1996).
[CrossRef]

1995

1994

A. Giesen, H. Hügel, A. Voss, K. Wittig, U. Brauch, and H. Opower, “Scalable Concept for Diode-Pumped High-Power Solid-State Lasers,” Appl. Phys. B 58, 365–372 (1994).

Aus der Au, J.

F. X. Kärtner, J. Aus der Au, and U. Keller, “Modelocking with slow and fast saturable absorbers - What's the difference?” IEEE J. Sel. Top. Quantum Electron. 4(2), 159–168 (1998).
[CrossRef]

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönninger, N. Matuschek, and J. Aus der Au, “Semiconductor saturable absorber mirrors (SESAMs) for femtosecond to nanosecond pulse generation in solid-state lasers,” IEEE J. Sel. Top. Quantum Electron. 2(3), 435–453 (1996).
[CrossRef]

Baer, C. R. E.

Baggett, J. C.

Bauer, D.

Biswal, S.

Bowman, S. R.

Brauch, U.

A. Giesen, H. Hügel, A. Voss, K. Wittig, U. Brauch, and H. Opower, “Scalable Concept for Diode-Pumped High-Power Solid-State Lasers,” Appl. Phys. B 58, 365–372 (1994).

Braun, B.

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönninger, N. Matuschek, and J. Aus der Au, “Semiconductor saturable absorber mirrors (SESAMs) for femtosecond to nanosecond pulse generation in solid-state lasers,” IEEE J. Sel. Top. Quantum Electron. 2(3), 435–453 (1996).
[CrossRef]

Brunner, F.

V. E. Kisel, N. A. Tolstik, A. E. Troshin, N. V. Kuleshov, V. N. Matrosov, T. A. Matrosova, M. I. Kupchenko, F. Brunner, R. Paschotta, F. Morier-Genoud, and U. Keller, “Spectroscopy and femtosecond laser performance of Yb3+:Gd0.64Y0.36VO4 crystal,” Appl. Phys. B 85(4), 581–584 (2006).
[CrossRef]

E. Innerhofer, T. Südmeyer, F. Brunner, R. Paschotta, and U. Keller, “Mode-locked high-power lasers and nonlinear optics - a powerful combination,” Laser Phys. Lett. 1(2), 82–85 (2004).
[CrossRef]

T. Südmeyer, F. Brunner, E. Innerhofer, R. Paschotta, K. Furusawa, J. C. Baggett, T. M. Monro, D. J. Richardson, and U. Keller, “Nonlinear femtosecond pulse compression at high average power levels by use of a large-mode-area holey fiber,” Opt. Lett. 28(20), 1951–1953 (2003).
[CrossRef] [PubMed]

F. Brunner, T. Südmeyer, E. Innerhofer, F. Morier-Genoud, R. Paschotta, V. E. Kisel, V. G. Shcherbitsky, N. V. Kuleshov, J. Gao, K. Contag, A. Giesen, and U. Keller, “240-fs pulses with 22-W average power from a mode-locked thin-disk Yb:KY(WO(4))(2) laser,” Opt. Lett. 27(13), 1162–1164 (2002).
[CrossRef]

Bünting, U.

Butashin, A. V.

A. A. Kaminskii, A. F. Konstantinova, V. P. Orekhova, A. V. Butashin, R. F. Klevtsova, and A. A. Pavlyuk, “Optical and Nonlinear Laser Properties of the χ(3)-Active Monoclinic α-KY(WO4)2 Crystals,” Crystallogr. Rep. 46(4), 665–672 (2001).
[CrossRef]

Cascales, C.

C. Cascales, A. Méndez Blas, M. Rico, V. Volkow, and C. Zaldo, “The optical spectroscopy of lanthanides R3+ in ABi(XO4)2 (A = Li, Na; X = Mo, W) and LiYb(MoO4)2 multifunctional single crystals: Relationship with the structural local disorder,” Opt. Mater. 27(11), 1672–1680 (2005).
[CrossRef]

Contag, K.

Dekorsy, T.

Emons, M.

Engqvist, A. G.

Fluck, R.

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönninger, N. Matuschek, and J. Aus der Au, “Semiconductor saturable absorber mirrors (SESAMs) for femtosecond to nanosecond pulse generation in solid-state lasers,” IEEE J. Sel. Top. Quantum Electron. 2(3), 435–453 (1996).
[CrossRef]

Furusawa, K.

Gao, J.

Giesen, A.

A. Giesen and J. Speiser, “Fifteen Years of Work on Thin-Disk Lasers: Results and Scaling Laws,” IEEE J. Sel. Top. Quantum Electron. 13(3), 598–609 (2007).
[CrossRef]

F. Brunner, T. Südmeyer, E. Innerhofer, F. Morier-Genoud, R. Paschotta, V. E. Kisel, V. G. Shcherbitsky, N. V. Kuleshov, J. Gao, K. Contag, A. Giesen, and U. Keller, “240-fs pulses with 22-W average power from a mode-locked thin-disk Yb:KY(WO(4))(2) laser,” Opt. Lett. 27(13), 1162–1164 (2002).
[CrossRef]

A. Giesen, H. Hügel, A. Voss, K. Wittig, U. Brauch, and H. Opower, “Scalable Concept for Diode-Pumped High-Power Solid-State Lasers,” Appl. Phys. B 58, 365–372 (1994).

Gingras, G.

T. Südmeyer, S. V. Marchese, S. Hashimoto, C. R. E. Baer, G. Gingras, B. Witzel, and U. Keller, “Femtosecond laser oscillators for high-field science,” Nat. Photonics 2(10), 599–604 (2008).
[CrossRef]

Golling, M.

Grange, R.

M. Haiml, R. Grange, and U. Keller, “Optical characterization of semiconductor saturable absorbers,” Appl. Phys. B 79(3), 331–339 (2004).
[CrossRef]

Guina, M.

Haiml, M.

M. Haiml, R. Grange, and U. Keller, “Optical characterization of semiconductor saturable absorbers,” Appl. Phys. B 79(3), 331–339 (2004).
[CrossRef]

Hashimoto, S.

T. Südmeyer, S. V. Marchese, S. Hashimoto, C. R. E. Baer, G. Gingras, B. Witzel, and U. Keller, “Femtosecond laser oscillators for high-field science,” Nat. Photonics 2(10), 599–604 (2008).
[CrossRef]

S. V. Marchese, C. R. E. Baer, A. G. Engqvist, S. Hashimoto, D. J. H. C. Maas, M. Golling, T. Südmeyer, and U. Keller, “Femtosecond thin disk laser oscillator with pulse energy beyond the 10-microjoule level,” Opt. Express 16(9), 6397–6407 (2008).
[CrossRef] [PubMed]

Holtom, G. R.

Hönninger, C.

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönninger, N. Matuschek, and J. Aus der Au, “Semiconductor saturable absorber mirrors (SESAMs) for femtosecond to nanosecond pulse generation in solid-state lasers,” IEEE J. Sel. Top. Quantum Electron. 2(3), 435–453 (1996).
[CrossRef]

Hosokawa, S.

Huber, G.

Hügel, H.

A. Giesen, H. Hügel, A. Voss, K. Wittig, U. Brauch, and H. Opower, “Scalable Concept for Diode-Pumped High-Power Solid-State Lasers,” Appl. Phys. B 58, 365–372 (1994).

Innerhofer, E.

Jung, I. D.

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönninger, N. Matuschek, and J. Aus der Au, “Semiconductor saturable absorber mirrors (SESAMs) for femtosecond to nanosecond pulse generation in solid-state lasers,” IEEE J. Sel. Top. Quantum Electron. 2(3), 435–453 (1996).
[CrossRef]

Kaminskii, A. A.

Kärtner, F. X.

F. X. Kärtner, J. Aus der Au, and U. Keller, “Modelocking with slow and fast saturable absorbers - What's the difference?” IEEE J. Sel. Top. Quantum Electron. 4(2), 159–168 (1998).
[CrossRef]

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönninger, N. Matuschek, and J. Aus der Au, “Semiconductor saturable absorber mirrors (SESAMs) for femtosecond to nanosecond pulse generation in solid-state lasers,” IEEE J. Sel. Top. Quantum Electron. 2(3), 435–453 (1996).
[CrossRef]

F. X. Kärtner and U. Keller, “Stabilization of soliton-like pulses with a slow saturable absorber,” Opt. Lett. 20, 16–18 (1995).
[CrossRef] [PubMed]

Keller, U.

T. Südmeyer, S. V. Marchese, S. Hashimoto, C. R. E. Baer, G. Gingras, B. Witzel, and U. Keller, “Femtosecond laser oscillators for high-field science,” Nat. Photonics 2(10), 599–604 (2008).
[CrossRef]

S. V. Marchese, C. R. E. Baer, A. G. Engqvist, S. Hashimoto, D. J. H. C. Maas, M. Golling, T. Südmeyer, and U. Keller, “Femtosecond thin disk laser oscillator with pulse energy beyond the 10-microjoule level,” Opt. Express 16(9), 6397–6407 (2008).
[CrossRef] [PubMed]

S. V. Marchese, C. R. E. Baer, R. Peters, C. Kränkel, A. G. Engqvist, M. Golling, D. J. H. C. Maas, K. Petermann, T. Südmeyer, G. Huber, and U. Keller, “Efficient femtosecond high power Yb:Lu2O3 thin disk laser,” Opt. Express 15(25), 16966–16971 (2007).
[CrossRef] [PubMed]

V. E. Kisel, N. A. Tolstik, A. E. Troshin, N. V. Kuleshov, V. N. Matrosov, T. A. Matrosova, M. I. Kupchenko, F. Brunner, R. Paschotta, F. Morier-Genoud, and U. Keller, “Spectroscopy and femtosecond laser performance of Yb3+:Gd0.64Y0.36VO4 crystal,” Appl. Phys. B 85(4), 581–584 (2006).
[CrossRef]

M. Haiml, R. Grange, and U. Keller, “Optical characterization of semiconductor saturable absorbers,” Appl. Phys. B 79(3), 331–339 (2004).
[CrossRef]

E. Innerhofer, T. Südmeyer, F. Brunner, R. Paschotta, and U. Keller, “Mode-locked high-power lasers and nonlinear optics - a powerful combination,” Laser Phys. Lett. 1(2), 82–85 (2004).
[CrossRef]

T. Südmeyer, F. Brunner, E. Innerhofer, R. Paschotta, K. Furusawa, J. C. Baggett, T. M. Monro, D. J. Richardson, and U. Keller, “Nonlinear femtosecond pulse compression at high average power levels by use of a large-mode-area holey fiber,” Opt. Lett. 28(20), 1951–1953 (2003).
[CrossRef] [PubMed]

F. Brunner, T. Südmeyer, E. Innerhofer, F. Morier-Genoud, R. Paschotta, V. E. Kisel, V. G. Shcherbitsky, N. V. Kuleshov, J. Gao, K. Contag, A. Giesen, and U. Keller, “240-fs pulses with 22-W average power from a mode-locked thin-disk Yb:KY(WO(4))(2) laser,” Opt. Lett. 27(13), 1162–1164 (2002).
[CrossRef]

R. Paschotta and U. Keller, “Passive mode locking with slow saturable absorbers,” Appl. Phys. B 73(7), 653–662 (2001).
[CrossRef]

F. X. Kärtner, J. Aus der Au, and U. Keller, “Modelocking with slow and fast saturable absorbers - What's the difference?” IEEE J. Sel. Top. Quantum Electron. 4(2), 159–168 (1998).
[CrossRef]

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönninger, N. Matuschek, and J. Aus der Au, “Semiconductor saturable absorber mirrors (SESAMs) for femtosecond to nanosecond pulse generation in solid-state lasers,” IEEE J. Sel. Top. Quantum Electron. 2(3), 435–453 (1996).
[CrossRef]

F. X. Kärtner and U. Keller, “Stabilization of soliton-like pulses with a slow saturable absorber,” Opt. Lett. 20, 16–18 (1995).
[CrossRef] [PubMed]

Killi, A.

Kisel, V. E.

V. E. Kisel, N. A. Tolstik, A. E. Troshin, N. V. Kuleshov, V. N. Matrosov, T. A. Matrosova, M. I. Kupchenko, F. Brunner, R. Paschotta, F. Morier-Genoud, and U. Keller, “Spectroscopy and femtosecond laser performance of Yb3+:Gd0.64Y0.36VO4 crystal,” Appl. Phys. B 85(4), 581–584 (2006).
[CrossRef]

F. Brunner, T. Südmeyer, E. Innerhofer, F. Morier-Genoud, R. Paschotta, V. E. Kisel, V. G. Shcherbitsky, N. V. Kuleshov, J. Gao, K. Contag, A. Giesen, and U. Keller, “240-fs pulses with 22-W average power from a mode-locked thin-disk Yb:KY(WO(4))(2) laser,” Opt. Lett. 27(13), 1162–1164 (2002).
[CrossRef]

Kleinbauer, J.

Klevtsova, R. F.

A. A. Kaminskii, A. F. Konstantinova, V. P. Orekhova, A. V. Butashin, R. F. Klevtsova, and A. A. Pavlyuk, “Optical and Nonlinear Laser Properties of the χ(3)-Active Monoclinic α-KY(WO4)2 Crystals,” Crystallogr. Rep. 46(4), 665–672 (2001).
[CrossRef]

Konstantinova, A. F.

A. A. Kaminskii, A. F. Konstantinova, V. P. Orekhova, A. V. Butashin, R. F. Klevtsova, and A. A. Pavlyuk, “Optical and Nonlinear Laser Properties of the χ(3)-Active Monoclinic α-KY(WO4)2 Crystals,” Crystallogr. Rep. 46(4), 665–672 (2001).
[CrossRef]

Kopf, D.

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönninger, N. Matuschek, and J. Aus der Au, “Semiconductor saturable absorber mirrors (SESAMs) for femtosecond to nanosecond pulse generation in solid-state lasers,” IEEE J. Sel. Top. Quantum Electron. 2(3), 435–453 (1996).
[CrossRef]

Kränkel, C.

Kuleshov, N. V.

V. E. Kisel, N. A. Tolstik, A. E. Troshin, N. V. Kuleshov, V. N. Matrosov, T. A. Matrosova, M. I. Kupchenko, F. Brunner, R. Paschotta, F. Morier-Genoud, and U. Keller, “Spectroscopy and femtosecond laser performance of Yb3+:Gd0.64Y0.36VO4 crystal,” Appl. Phys. B 85(4), 581–584 (2006).
[CrossRef]

F. Brunner, T. Südmeyer, E. Innerhofer, F. Morier-Genoud, R. Paschotta, V. E. Kisel, V. G. Shcherbitsky, N. V. Kuleshov, J. Gao, K. Contag, A. Giesen, and U. Keller, “240-fs pulses with 22-W average power from a mode-locked thin-disk Yb:KY(WO(4))(2) laser,” Opt. Lett. 27(13), 1162–1164 (2002).
[CrossRef]

Kumkar, M.

Kupchenko, M. I.

V. E. Kisel, N. A. Tolstik, A. E. Troshin, N. V. Kuleshov, V. N. Matrosov, T. A. Matrosova, M. I. Kupchenko, F. Brunner, R. Paschotta, F. Morier-Genoud, and U. Keller, “Spectroscopy and femtosecond laser performance of Yb3+:Gd0.64Y0.36VO4 crystal,” Appl. Phys. B 85(4), 581–584 (2006).
[CrossRef]

Liu, H.

Maas, D. J. H. C.

Marchese, S. V.

Matrosov, V. N.

V. E. Kisel, N. A. Tolstik, A. E. Troshin, N. V. Kuleshov, V. N. Matrosov, T. A. Matrosova, M. I. Kupchenko, F. Brunner, R. Paschotta, F. Morier-Genoud, and U. Keller, “Spectroscopy and femtosecond laser performance of Yb3+:Gd0.64Y0.36VO4 crystal,” Appl. Phys. B 85(4), 581–584 (2006).
[CrossRef]

Matrosova, T. A.

V. E. Kisel, N. A. Tolstik, A. E. Troshin, N. V. Kuleshov, V. N. Matrosov, T. A. Matrosova, M. I. Kupchenko, F. Brunner, R. Paschotta, F. Morier-Genoud, and U. Keller, “Spectroscopy and femtosecond laser performance of Yb3+:Gd0.64Y0.36VO4 crystal,” Appl. Phys. B 85(4), 581–584 (2006).
[CrossRef]

Matuschek, N.

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönninger, N. Matuschek, and J. Aus der Au, “Semiconductor saturable absorber mirrors (SESAMs) for femtosecond to nanosecond pulse generation in solid-state lasers,” IEEE J. Sel. Top. Quantum Electron. 2(3), 435–453 (1996).
[CrossRef]

Méndez Blas, A.

C. Cascales, A. Méndez Blas, M. Rico, V. Volkow, and C. Zaldo, “The optical spectroscopy of lanthanides R3+ in ABi(XO4)2 (A = Li, Na; X = Mo, W) and LiYb(MoO4)2 multifunctional single crystals: Relationship with the structural local disorder,” Opt. Mater. 27(11), 1672–1680 (2005).
[CrossRef]

Monro, T. M.

Morgner, U.

Morier-Genoud, F.

V. E. Kisel, N. A. Tolstik, A. E. Troshin, N. V. Kuleshov, V. N. Matrosov, T. A. Matrosova, M. I. Kupchenko, F. Brunner, R. Paschotta, F. Morier-Genoud, and U. Keller, “Spectroscopy and femtosecond laser performance of Yb3+:Gd0.64Y0.36VO4 crystal,” Appl. Phys. B 85(4), 581–584 (2006).
[CrossRef]

F. Brunner, T. Südmeyer, E. Innerhofer, F. Morier-Genoud, R. Paschotta, V. E. Kisel, V. G. Shcherbitsky, N. V. Kuleshov, J. Gao, K. Contag, A. Giesen, and U. Keller, “240-fs pulses with 22-W average power from a mode-locked thin-disk Yb:KY(WO(4))(2) laser,” Opt. Lett. 27(13), 1162–1164 (2002).
[CrossRef]

Mourou, G.

Nees, J.

Neuhaus, J.

Noriyuki, M.

O’Connor, S. P.

Opower, H.

A. Giesen, H. Hügel, A. Voss, K. Wittig, U. Brauch, and H. Opower, “Scalable Concept for Diode-Pumped High-Power Solid-State Lasers,” Appl. Phys. B 58, 365–372 (1994).

Orekhova, V. P.

A. A. Kaminskii, A. F. Konstantinova, V. P. Orekhova, A. V. Butashin, R. F. Klevtsova, and A. A. Pavlyuk, “Optical and Nonlinear Laser Properties of the χ(3)-Active Monoclinic α-KY(WO4)2 Crystals,” Crystallogr. Rep. 46(4), 665–672 (2001).
[CrossRef]

Palmer, G.

Paschotta, R.

V. E. Kisel, N. A. Tolstik, A. E. Troshin, N. V. Kuleshov, V. N. Matrosov, T. A. Matrosova, M. I. Kupchenko, F. Brunner, R. Paschotta, F. Morier-Genoud, and U. Keller, “Spectroscopy and femtosecond laser performance of Yb3+:Gd0.64Y0.36VO4 crystal,” Appl. Phys. B 85(4), 581–584 (2006).
[CrossRef]

E. Innerhofer, T. Südmeyer, F. Brunner, R. Paschotta, and U. Keller, “Mode-locked high-power lasers and nonlinear optics - a powerful combination,” Laser Phys. Lett. 1(2), 82–85 (2004).
[CrossRef]

T. Südmeyer, F. Brunner, E. Innerhofer, R. Paschotta, K. Furusawa, J. C. Baggett, T. M. Monro, D. J. Richardson, and U. Keller, “Nonlinear femtosecond pulse compression at high average power levels by use of a large-mode-area holey fiber,” Opt. Lett. 28(20), 1951–1953 (2003).
[CrossRef] [PubMed]

F. Brunner, T. Südmeyer, E. Innerhofer, F. Morier-Genoud, R. Paschotta, V. E. Kisel, V. G. Shcherbitsky, N. V. Kuleshov, J. Gao, K. Contag, A. Giesen, and U. Keller, “240-fs pulses with 22-W average power from a mode-locked thin-disk Yb:KY(WO(4))(2) laser,” Opt. Lett. 27(13), 1162–1164 (2002).
[CrossRef]

R. Paschotta and U. Keller, “Passive mode locking with slow saturable absorbers,” Appl. Phys. B 73(7), 653–662 (2001).
[CrossRef]

Pavlyuk, A. A.

A. A. Kaminskii, A. F. Konstantinova, V. P. Orekhova, A. V. Butashin, R. F. Klevtsova, and A. A. Pavlyuk, “Optical and Nonlinear Laser Properties of the χ(3)-Active Monoclinic α-KY(WO4)2 Crystals,” Crystallogr. Rep. 46(4), 665–672 (2001).
[CrossRef]

Petermann, K.

Peters, R.

Richardson, D. J.

Rico, M.

C. Cascales, A. Méndez Blas, M. Rico, V. Volkow, and C. Zaldo, “The optical spectroscopy of lanthanides R3+ in ABi(XO4)2 (A = Li, Na; X = Mo, W) and LiYb(MoO4)2 multifunctional single crystals: Relationship with the structural local disorder,” Opt. Mater. 27(11), 1672–1680 (2005).
[CrossRef]

Schultze, M.

Shcherbitsky, V. G.

Shirakawa, A.

Siegel, M.

Speiser, J.

A. Giesen and J. Speiser, “Fifteen Years of Work on Thin-Disk Lasers: Results and Scaling Laws,” IEEE J. Sel. Top. Quantum Electron. 13(3), 598–609 (2007).
[CrossRef]

Südmeyer, T.

T. Südmeyer, S. V. Marchese, S. Hashimoto, C. R. E. Baer, G. Gingras, B. Witzel, and U. Keller, “Femtosecond laser oscillators for high-field science,” Nat. Photonics 2(10), 599–604 (2008).
[CrossRef]

S. V. Marchese, C. R. E. Baer, A. G. Engqvist, S. Hashimoto, D. J. H. C. Maas, M. Golling, T. Südmeyer, and U. Keller, “Femtosecond thin disk laser oscillator with pulse energy beyond the 10-microjoule level,” Opt. Express 16(9), 6397–6407 (2008).
[CrossRef] [PubMed]

S. V. Marchese, C. R. E. Baer, R. Peters, C. Kränkel, A. G. Engqvist, M. Golling, D. J. H. C. Maas, K. Petermann, T. Südmeyer, G. Huber, and U. Keller, “Efficient femtosecond high power Yb:Lu2O3 thin disk laser,” Opt. Express 15(25), 16966–16971 (2007).
[CrossRef] [PubMed]

E. Innerhofer, T. Südmeyer, F. Brunner, R. Paschotta, and U. Keller, “Mode-locked high-power lasers and nonlinear optics - a powerful combination,” Laser Phys. Lett. 1(2), 82–85 (2004).
[CrossRef]

T. Südmeyer, F. Brunner, E. Innerhofer, R. Paschotta, K. Furusawa, J. C. Baggett, T. M. Monro, D. J. Richardson, and U. Keller, “Nonlinear femtosecond pulse compression at high average power levels by use of a large-mode-area holey fiber,” Opt. Lett. 28(20), 1951–1953 (2003).
[CrossRef] [PubMed]

F. Brunner, T. Südmeyer, E. Innerhofer, F. Morier-Genoud, R. Paschotta, V. E. Kisel, V. G. Shcherbitsky, N. V. Kuleshov, J. Gao, K. Contag, A. Giesen, and U. Keller, “240-fs pulses with 22-W average power from a mode-locked thin-disk Yb:KY(WO(4))(2) laser,” Opt. Lett. 27(13), 1162–1164 (2002).
[CrossRef]

Sutter, D. H.

Tokurakawa, M.

Tolstik, N. A.

V. E. Kisel, N. A. Tolstik, A. E. Troshin, N. V. Kuleshov, V. N. Matrosov, T. A. Matrosova, M. I. Kupchenko, F. Brunner, R. Paschotta, F. Morier-Genoud, and U. Keller, “Spectroscopy and femtosecond laser performance of Yb3+:Gd0.64Y0.36VO4 crystal,” Appl. Phys. B 85(4), 581–584 (2006).
[CrossRef]

Troshin, A. E.

V. E. Kisel, N. A. Tolstik, A. E. Troshin, N. V. Kuleshov, V. N. Matrosov, T. A. Matrosova, M. I. Kupchenko, F. Brunner, R. Paschotta, F. Morier-Genoud, and U. Keller, “Spectroscopy and femtosecond laser performance of Yb3+:Gd0.64Y0.36VO4 crystal,” Appl. Phys. B 85(4), 581–584 (2006).
[CrossRef]

Ueda, K.

Volkow, V.

C. Cascales, A. Méndez Blas, M. Rico, V. Volkow, and C. Zaldo, “The optical spectroscopy of lanthanides R3+ in ABi(XO4)2 (A = Li, Na; X = Mo, W) and LiYb(MoO4)2 multifunctional single crystals: Relationship with the structural local disorder,” Opt. Mater. 27(11), 1672–1680 (2005).
[CrossRef]

Voss, A.

A. Giesen, H. Hügel, A. Voss, K. Wittig, U. Brauch, and H. Opower, “Scalable Concept for Diode-Pumped High-Power Solid-State Lasers,” Appl. Phys. B 58, 365–372 (1994).

Weiler, S.

Weingarten, K. J.

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönninger, N. Matuschek, and J. Aus der Au, “Semiconductor saturable absorber mirrors (SESAMs) for femtosecond to nanosecond pulse generation in solid-state lasers,” IEEE J. Sel. Top. Quantum Electron. 2(3), 435–453 (1996).
[CrossRef]

Wittig, K.

A. Giesen, H. Hügel, A. Voss, K. Wittig, U. Brauch, and H. Opower, “Scalable Concept for Diode-Pumped High-Power Solid-State Lasers,” Appl. Phys. B 58, 365–372 (1994).

Witzel, B.

T. Südmeyer, S. V. Marchese, S. Hashimoto, C. R. E. Baer, G. Gingras, B. Witzel, and U. Keller, “Femtosecond laser oscillators for high-field science,” Nat. Photonics 2(10), 599–604 (2008).
[CrossRef]

Yagi, H.

Yanagitani, T.

Zaldo, C.

C. Cascales, A. Méndez Blas, M. Rico, V. Volkow, and C. Zaldo, “The optical spectroscopy of lanthanides R3+ in ABi(XO4)2 (A = Li, Na; X = Mo, W) and LiYb(MoO4)2 multifunctional single crystals: Relationship with the structural local disorder,” Opt. Mater. 27(11), 1672–1680 (2005).
[CrossRef]

Zhang, J.

Appl. Opt.

Appl. Phys. B

A. Giesen, H. Hügel, A. Voss, K. Wittig, U. Brauch, and H. Opower, “Scalable Concept for Diode-Pumped High-Power Solid-State Lasers,” Appl. Phys. B 58, 365–372 (1994).

V. E. Kisel, N. A. Tolstik, A. E. Troshin, N. V. Kuleshov, V. N. Matrosov, T. A. Matrosova, M. I. Kupchenko, F. Brunner, R. Paschotta, F. Morier-Genoud, and U. Keller, “Spectroscopy and femtosecond laser performance of Yb3+:Gd0.64Y0.36VO4 crystal,” Appl. Phys. B 85(4), 581–584 (2006).
[CrossRef]

M. Haiml, R. Grange, and U. Keller, “Optical characterization of semiconductor saturable absorbers,” Appl. Phys. B 79(3), 331–339 (2004).
[CrossRef]

R. Paschotta and U. Keller, “Passive mode locking with slow saturable absorbers,” Appl. Phys. B 73(7), 653–662 (2001).
[CrossRef]

Crystallogr. Rep.

A. A. Kaminskii, A. F. Konstantinova, V. P. Orekhova, A. V. Butashin, R. F. Klevtsova, and A. A. Pavlyuk, “Optical and Nonlinear Laser Properties of the χ(3)-Active Monoclinic α-KY(WO4)2 Crystals,” Crystallogr. Rep. 46(4), 665–672 (2001).
[CrossRef]

IEEE J. Sel. Top. Quantum Electron.

F. X. Kärtner, J. Aus der Au, and U. Keller, “Modelocking with slow and fast saturable absorbers - What's the difference?” IEEE J. Sel. Top. Quantum Electron. 4(2), 159–168 (1998).
[CrossRef]

A. Giesen and J. Speiser, “Fifteen Years of Work on Thin-Disk Lasers: Results and Scaling Laws,” IEEE J. Sel. Top. Quantum Electron. 13(3), 598–609 (2007).
[CrossRef]

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönninger, N. Matuschek, and J. Aus der Au, “Semiconductor saturable absorber mirrors (SESAMs) for femtosecond to nanosecond pulse generation in solid-state lasers,” IEEE J. Sel. Top. Quantum Electron. 2(3), 435–453 (1996).
[CrossRef]

J. Cryst. Growth

R. Peters, C. Kränkel, K. Petermann, and G. Huber, “Crystal growth by the heat exchanger method, spectroscopic characterization and laser operation of high-purity Yb:Lu2O3,” J. Cryst. Growth 310(7-9), 1934–1938 (2008).
[CrossRef]

Laser Phys. Lett.

E. Innerhofer, T. Südmeyer, F. Brunner, R. Paschotta, and U. Keller, “Mode-locked high-power lasers and nonlinear optics - a powerful combination,” Laser Phys. Lett. 1(2), 82–85 (2004).
[CrossRef]

Nat. Photonics

T. Südmeyer, S. V. Marchese, S. Hashimoto, C. R. E. Baer, G. Gingras, B. Witzel, and U. Keller, “Femtosecond laser oscillators for high-field science,” Nat. Photonics 2(10), 599–604 (2008).
[CrossRef]

Opt. Express

Opt. Lett.

F. X. Kärtner and U. Keller, “Stabilization of soliton-like pulses with a slow saturable absorber,” Opt. Lett. 20, 16–18 (1995).
[CrossRef] [PubMed]

G. R. Holtom, “Mode-locked Yb:KGW laser longitudinally pumped by polarization-coupled diode bars,” Opt. Lett. 31(18), 2719–2721 (2006).
[CrossRef] [PubMed]

G. Palmer, M. Schultze, M. Siegel, M. Emons, U. Bünting, and U. Morgner, “Passively mode-locked Yb:KLu(WO4)2 thin-disk oscillator operated in the positive and negative dispersion regime,” Opt. Lett. 33(14), 1608–1610 (2008).
[CrossRef] [PubMed]

M. Tokurakawa, A. Shirakawa, K. Ueda, H. Yagi, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Diode-pumped 65 fs Kerr-lens mode-locked Yb(3+):Lu(2)O(3) and nondoped Y(2)O(3) combined ceramic laser,” Opt. Lett. 33(12), 1380–1382 (2008).
[CrossRef] [PubMed]

M. Tokurakawa, A. Shirakawa, K. Ueda, H. Yagi, T. Yanagitani, and A. A. Kaminskii, “Diode-pumped sub-100 fs Kerr-lens mode-locked Yb3+:Sc2O3 ceramic laser,” Opt. Lett. 32(23), 3382–3384 (2007).
[CrossRef] [PubMed]

T. Südmeyer, F. Brunner, E. Innerhofer, R. Paschotta, K. Furusawa, J. C. Baggett, T. M. Monro, D. J. Richardson, and U. Keller, “Nonlinear femtosecond pulse compression at high average power levels by use of a large-mode-area holey fiber,” Opt. Lett. 28(20), 1951–1953 (2003).
[CrossRef] [PubMed]

H. Liu, J. Nees, and G. Mourou, “Diode-pumped Kerr-lens mode-locked Yb:KY(WO(4))(2) laser,” Opt. Lett. 26(21), 1723–1725 (2001).
[CrossRef]

F. Brunner, T. Südmeyer, E. Innerhofer, F. Morier-Genoud, R. Paschotta, V. E. Kisel, V. G. Shcherbitsky, N. V. Kuleshov, J. Gao, K. Contag, A. Giesen, and U. Keller, “240-fs pulses with 22-W average power from a mode-locked thin-disk Yb:KY(WO(4))(2) laser,” Opt. Lett. 27(13), 1162–1164 (2002).
[CrossRef]

Opt. Mater.

C. Cascales, A. Méndez Blas, M. Rico, V. Volkow, and C. Zaldo, “The optical spectroscopy of lanthanides R3+ in ABi(XO4)2 (A = Li, Na; X = Mo, W) and LiYb(MoO4)2 multifunctional single crystals: Relationship with the structural local disorder,” Opt. Mater. 27(11), 1672–1680 (2005).
[CrossRef]

Other

R. Peters, K. Beil, C. Kränkel, K. Schenk, K. Petermann, and G. Huber, “Ytterbium-doped Sesquioxides for High-Power Solid-State Lasers: Recent Progress in Crystal Growth and Laser Operation,” presented at Conference on Lasers and Electro-Optics (Europe), (Munich, Germany, 2009), paper CA9.1.

R. Peters, K. Petermann, and G. Huber, “A New Mixed Sesquioxide Yb:LuScO3: Spectroscopic Properties and Highly Efficient Thin-Disk Laser Operation,” presented at Advanced Solid-State Photonics (ASSP), (Denver, USA, 2009), paper MC4.

A. Schmidt, X. Mateos, V. Petrov, U. Griebner, R. Peters, K. Petermann, G. Huber, A. Klehr, and G. Erbert, “Passively Mode-Locked Yb:LuScO3 Oscillator,” presented at Advanced Solid-State Photonics, (Denver, USA, 2009), paper MB12.

R. Peters, C. Kränkel, K. Petermann, and G. Huber, “High Power Laser Operation of Sesquioxides Yb:Lu2O3 and Yb:Sc2O3,” presented at Conference on Lasers and Electro-Optics, (San Jose, USA, 2008), paper CTuKK4.

C. R. E. Baer, C. Kränkel, C. J. Saraceno, O. H. Heckl, M. Golling, T. Südmeyer, R. Peters, K. Petermann, G. Huber, and U. Keller, “63-W Average Power from Femtosecond Yb:Lu2O3 Thin Disk Laser,” presented at Conference on Lasers and Electro-Optics (Europe), (Munich, Germany, 2009), paper CA2.3.

E. Innerhofer, F. Brunner, S. V. Marchese, R. Paschotta, U. Keller, K. Furusawa, J. C. Baggett, T. M. Monro, and D. J. Richardson, “32 W of average power in 24-fs pulses from a passively mode-locked thin disk laser with nonlinear fiber compression,” presented at Advanced Solid-State Photonics (ASSP), (Vienna, Austria, 2005), paper TuA3.

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Figures (5)

Fig. 1
Fig. 1

(color online) Comparison of the gain spectra of Yb:LuScO3 with Yb:Lu2O3 and Yb:Sc2O3 for an inversion of β = 0.25 (left). Gain spectrum of Yb:LuScO3 for different levels of inversion (right).

Fig. 2
Fig. 2

(color online) Experimental setup of the Yb:LuScO3 thin disk (TD) laser cavity (not to scale). Two dispersive mirrors introduce a negative GDD of ≈-2200 fs2 per roundtrip. The Brewster plate has a thickness of 5 mm. Cavity dimensions: SESAM-R1 = 34.9 cm, R1-R2 = 42.6 cm, R2-TD = 47.7 cm, TD-R3 = 50.1 cm, R3-OC = 49.4 cm. HR: curved highly reflective mirror, DM: dispersive mirror, OC: output coupler, SESAM: semiconductor saturable absorber mirror.

Fig. 3
Fig. 3

(color online) Normalized autocorrelation (left) and optical spectrum (right) of the measured output beam (solid blue lines) with fit curves assuming ideal sech 2 pulses (dashed red lines). The shortest pulses have a duration of 227 fs and a spectral bandwidth of 5.2 nm centered near 1041 nm.

Fig. 4
Fig. 4

(color online) Output power versus incident pump power using an outcoupling mirror with T = 5.2% for the laser wavelength. Stable soliton modelocking is obtained at 30 W pump power with a slope efficiency (η slope) of 39%.

Fig. 5
Fig. 5

Nomarski interference microscope photography of the Yb:LuScO3 disk used in the experiments. The white circle corresponds to the pump spot with a diameter of 1.2 mm. The grain boundaries are invisible under a normal microscope.

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