Abstract

High power operation of narrow linewidth optical fiber amplifiers is usually limited by the onset of stimulated Brillouin scattering. In this paper, we present results demonstrating over 500 Watts of power in a single mode beam from a fiber designed to suppress stimulated Brillouin scattering through a reduction in the overlap of the optical and acoustic fields. Simulations demonstrate the potential for this fiber to achieve greater than 1000 Watts of output power.

© 2007 Optical Society of America

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  1. Y. Jeong, J.K. Sahu, D.N. Payne, and J. Nilsson, “Ytterbium-doped large-core fiber laser with 1.36 kW continuous-wave output power,” Opt. Express 12, 6088–6092 (2004).
    [Crossref] [PubMed]
  2. Volker Reichel, Klaus W. Moerl, Sonja Unger, Sylvia Jetschke, Hans-Rainer Mueller, Johannes Kirchof, Thomas Sandrock, Alexander Harschack, Andreas Liem, Jens Limpert, Holger Zellmer, and Andreas Tuennermann, “Fiber-laser power scaling beyond the 1-kilowatt level by Nd:Yb co-doping,” Proc. SPIE 5777, 404–407 (2005).
    [Crossref]
  3. Information from http://www.ipgphotonics.com.
  4. G.P. Agrawal, Nonlinear Fiber Optics (Academic Press, 1995), Chap. 9.
  5. A. Liem, J.L., H. Zellmer, and A. Tunnermann, “100-W single-frequency master-oscillator fiber power amplifier,” Opt. Lett. 28, 1537–1539 (2003).
    [Crossref] [PubMed]
  6. D.N. Payne, Y. Jeong, J. Nilsson, J.K. Sahu, D. B. S. Soh, C. Alegria, P. Dupriez, C. A. Codemard, V. N. Philippov, V. Hernandez, R. Horley, L. Hickey, L. Wanzcyk, C. E. Chryssou, J. A. Alvarez-Chavez, and P. W. Turner, “Kilowatt-class single-frequency fiber sources,” Proc. SPIE 5709, 133–141 (2005).
    [Crossref]
  7. Y. Wang, C.-Q. Xu, and H. Po, “Thermal effects in kilowatt fiber lasers,” IEEE Photon. Technol. Lett. 16, 63–65 (2004).
    [Crossref]
  8. D.P. Machewirth, Q. Wang, B. Samson, K. Tankala, M. O’Connor, and M. Alam, “Current developments in high-power monolithic polarization maintaining fiber amplifiers for coherent beam combining applications,” Proc. SPIE6453, (2007).
    [Crossref]
  9. A. Kobyakov, S. Kumar, D.Q. Chowdhury, A. B. Ruffin, M. Sauer, S.R. Bickham, and R. Mishra, “Design concept for optical fibers with enhanced SBS threshold,” Opt. Express 13, 5338–5346 (2005).
    [Crossref] [PubMed]
  10. P.D. Dragic, C.H.L., G.C. Papen, and A. Galvanauskas, “Optical fiber with an acoustic guiding layer for stimulated Brillouin scattering suppression,” in Conference on Lasers and Electro-Optics, paper CThZ3 (2005).
  11. M.J. Li, X. Chen, J. Wang, S. Gray, A. Liu, J.A. Demeritt, A. B. Ruffin, A.M. Crowley, D.T. Walton, and L.A. Zenteno, “Al/GE Co-doped large mode area fiber high SBS threshold,” Opt. Express 15, 8290–8299 (2007).
    [Crossref] [PubMed]
  12. D. Walton, S. Gray, J. Wang, M.J. Li, X. Chen, A. Liu, L.A. Zenteno, and A. Crowley, “Kilowatt-level, narrow-linewidth capable fibers and lasers,” Proc. SPIE 6453, 645314 (2007).
    [Crossref]
  13. A. Liu, “Suppressing stimulated Brillouin scattering in fiber amplifiers using nonuniform fiber and temperature gradient,” Opt. Express 15, 977–985 (2007).
    [Crossref] [PubMed]
  14. J. Botineau, E. Picholle, and D. Bahloul, “Effective stimulated Brillouin gain in singlemode optical fibres,” Elect. Lett. 31, 2032–2034 (1995).
    [Crossref]
  15. N. Ostrom, “Multi-Kilowatt High Brightness Fiber Coupled Diode Laser Systems,” Proc. SSDLTR2006

2007 (3)

2005 (3)

Volker Reichel, Klaus W. Moerl, Sonja Unger, Sylvia Jetschke, Hans-Rainer Mueller, Johannes Kirchof, Thomas Sandrock, Alexander Harschack, Andreas Liem, Jens Limpert, Holger Zellmer, and Andreas Tuennermann, “Fiber-laser power scaling beyond the 1-kilowatt level by Nd:Yb co-doping,” Proc. SPIE 5777, 404–407 (2005).
[Crossref]

D.N. Payne, Y. Jeong, J. Nilsson, J.K. Sahu, D. B. S. Soh, C. Alegria, P. Dupriez, C. A. Codemard, V. N. Philippov, V. Hernandez, R. Horley, L. Hickey, L. Wanzcyk, C. E. Chryssou, J. A. Alvarez-Chavez, and P. W. Turner, “Kilowatt-class single-frequency fiber sources,” Proc. SPIE 5709, 133–141 (2005).
[Crossref]

A. Kobyakov, S. Kumar, D.Q. Chowdhury, A. B. Ruffin, M. Sauer, S.R. Bickham, and R. Mishra, “Design concept for optical fibers with enhanced SBS threshold,” Opt. Express 13, 5338–5346 (2005).
[Crossref] [PubMed]

2004 (2)

2003 (1)

1995 (1)

J. Botineau, E. Picholle, and D. Bahloul, “Effective stimulated Brillouin gain in singlemode optical fibres,” Elect. Lett. 31, 2032–2034 (1995).
[Crossref]

Agrawal, G.P.

G.P. Agrawal, Nonlinear Fiber Optics (Academic Press, 1995), Chap. 9.

Alam, M.

D.P. Machewirth, Q. Wang, B. Samson, K. Tankala, M. O’Connor, and M. Alam, “Current developments in high-power monolithic polarization maintaining fiber amplifiers for coherent beam combining applications,” Proc. SPIE6453, (2007).
[Crossref]

Alegria, C.

D.N. Payne, Y. Jeong, J. Nilsson, J.K. Sahu, D. B. S. Soh, C. Alegria, P. Dupriez, C. A. Codemard, V. N. Philippov, V. Hernandez, R. Horley, L. Hickey, L. Wanzcyk, C. E. Chryssou, J. A. Alvarez-Chavez, and P. W. Turner, “Kilowatt-class single-frequency fiber sources,” Proc. SPIE 5709, 133–141 (2005).
[Crossref]

Alvarez-Chavez, J. A.

D.N. Payne, Y. Jeong, J. Nilsson, J.K. Sahu, D. B. S. Soh, C. Alegria, P. Dupriez, C. A. Codemard, V. N. Philippov, V. Hernandez, R. Horley, L. Hickey, L. Wanzcyk, C. E. Chryssou, J. A. Alvarez-Chavez, and P. W. Turner, “Kilowatt-class single-frequency fiber sources,” Proc. SPIE 5709, 133–141 (2005).
[Crossref]

Bahloul, D.

J. Botineau, E. Picholle, and D. Bahloul, “Effective stimulated Brillouin gain in singlemode optical fibres,” Elect. Lett. 31, 2032–2034 (1995).
[Crossref]

Bickham, S.R.

Botineau, J.

J. Botineau, E. Picholle, and D. Bahloul, “Effective stimulated Brillouin gain in singlemode optical fibres,” Elect. Lett. 31, 2032–2034 (1995).
[Crossref]

C.H.L.,

P.D. Dragic, C.H.L., G.C. Papen, and A. Galvanauskas, “Optical fiber with an acoustic guiding layer for stimulated Brillouin scattering suppression,” in Conference on Lasers and Electro-Optics, paper CThZ3 (2005).

Chen, X.

M.J. Li, X. Chen, J. Wang, S. Gray, A. Liu, J.A. Demeritt, A. B. Ruffin, A.M. Crowley, D.T. Walton, and L.A. Zenteno, “Al/GE Co-doped large mode area fiber high SBS threshold,” Opt. Express 15, 8290–8299 (2007).
[Crossref] [PubMed]

D. Walton, S. Gray, J. Wang, M.J. Li, X. Chen, A. Liu, L.A. Zenteno, and A. Crowley, “Kilowatt-level, narrow-linewidth capable fibers and lasers,” Proc. SPIE 6453, 645314 (2007).
[Crossref]

Chowdhury, D.Q.

Chryssou, C. E.

D.N. Payne, Y. Jeong, J. Nilsson, J.K. Sahu, D. B. S. Soh, C. Alegria, P. Dupriez, C. A. Codemard, V. N. Philippov, V. Hernandez, R. Horley, L. Hickey, L. Wanzcyk, C. E. Chryssou, J. A. Alvarez-Chavez, and P. W. Turner, “Kilowatt-class single-frequency fiber sources,” Proc. SPIE 5709, 133–141 (2005).
[Crossref]

Codemard, C. A.

D.N. Payne, Y. Jeong, J. Nilsson, J.K. Sahu, D. B. S. Soh, C. Alegria, P. Dupriez, C. A. Codemard, V. N. Philippov, V. Hernandez, R. Horley, L. Hickey, L. Wanzcyk, C. E. Chryssou, J. A. Alvarez-Chavez, and P. W. Turner, “Kilowatt-class single-frequency fiber sources,” Proc. SPIE 5709, 133–141 (2005).
[Crossref]

Crowley, A.

D. Walton, S. Gray, J. Wang, M.J. Li, X. Chen, A. Liu, L.A. Zenteno, and A. Crowley, “Kilowatt-level, narrow-linewidth capable fibers and lasers,” Proc. SPIE 6453, 645314 (2007).
[Crossref]

Crowley, A.M.

Demeritt, J.A.

Dragic, P.D.

P.D. Dragic, C.H.L., G.C. Papen, and A. Galvanauskas, “Optical fiber with an acoustic guiding layer for stimulated Brillouin scattering suppression,” in Conference on Lasers and Electro-Optics, paper CThZ3 (2005).

Dupriez, P.

D.N. Payne, Y. Jeong, J. Nilsson, J.K. Sahu, D. B. S. Soh, C. Alegria, P. Dupriez, C. A. Codemard, V. N. Philippov, V. Hernandez, R. Horley, L. Hickey, L. Wanzcyk, C. E. Chryssou, J. A. Alvarez-Chavez, and P. W. Turner, “Kilowatt-class single-frequency fiber sources,” Proc. SPIE 5709, 133–141 (2005).
[Crossref]

Galvanauskas, A.

P.D. Dragic, C.H.L., G.C. Papen, and A. Galvanauskas, “Optical fiber with an acoustic guiding layer for stimulated Brillouin scattering suppression,” in Conference on Lasers and Electro-Optics, paper CThZ3 (2005).

Gray, S.

M.J. Li, X. Chen, J. Wang, S. Gray, A. Liu, J.A. Demeritt, A. B. Ruffin, A.M. Crowley, D.T. Walton, and L.A. Zenteno, “Al/GE Co-doped large mode area fiber high SBS threshold,” Opt. Express 15, 8290–8299 (2007).
[Crossref] [PubMed]

D. Walton, S. Gray, J. Wang, M.J. Li, X. Chen, A. Liu, L.A. Zenteno, and A. Crowley, “Kilowatt-level, narrow-linewidth capable fibers and lasers,” Proc. SPIE 6453, 645314 (2007).
[Crossref]

Harschack, Alexander

Volker Reichel, Klaus W. Moerl, Sonja Unger, Sylvia Jetschke, Hans-Rainer Mueller, Johannes Kirchof, Thomas Sandrock, Alexander Harschack, Andreas Liem, Jens Limpert, Holger Zellmer, and Andreas Tuennermann, “Fiber-laser power scaling beyond the 1-kilowatt level by Nd:Yb co-doping,” Proc. SPIE 5777, 404–407 (2005).
[Crossref]

Hernandez, V.

D.N. Payne, Y. Jeong, J. Nilsson, J.K. Sahu, D. B. S. Soh, C. Alegria, P. Dupriez, C. A. Codemard, V. N. Philippov, V. Hernandez, R. Horley, L. Hickey, L. Wanzcyk, C. E. Chryssou, J. A. Alvarez-Chavez, and P. W. Turner, “Kilowatt-class single-frequency fiber sources,” Proc. SPIE 5709, 133–141 (2005).
[Crossref]

Hickey, L.

D.N. Payne, Y. Jeong, J. Nilsson, J.K. Sahu, D. B. S. Soh, C. Alegria, P. Dupriez, C. A. Codemard, V. N. Philippov, V. Hernandez, R. Horley, L. Hickey, L. Wanzcyk, C. E. Chryssou, J. A. Alvarez-Chavez, and P. W. Turner, “Kilowatt-class single-frequency fiber sources,” Proc. SPIE 5709, 133–141 (2005).
[Crossref]

Horley, R.

D.N. Payne, Y. Jeong, J. Nilsson, J.K. Sahu, D. B. S. Soh, C. Alegria, P. Dupriez, C. A. Codemard, V. N. Philippov, V. Hernandez, R. Horley, L. Hickey, L. Wanzcyk, C. E. Chryssou, J. A. Alvarez-Chavez, and P. W. Turner, “Kilowatt-class single-frequency fiber sources,” Proc. SPIE 5709, 133–141 (2005).
[Crossref]

J.L.,

Jeong, Y.

D.N. Payne, Y. Jeong, J. Nilsson, J.K. Sahu, D. B. S. Soh, C. Alegria, P. Dupriez, C. A. Codemard, V. N. Philippov, V. Hernandez, R. Horley, L. Hickey, L. Wanzcyk, C. E. Chryssou, J. A. Alvarez-Chavez, and P. W. Turner, “Kilowatt-class single-frequency fiber sources,” Proc. SPIE 5709, 133–141 (2005).
[Crossref]

Y. Jeong, J.K. Sahu, D.N. Payne, and J. Nilsson, “Ytterbium-doped large-core fiber laser with 1.36 kW continuous-wave output power,” Opt. Express 12, 6088–6092 (2004).
[Crossref] [PubMed]

Jetschke, Sylvia

Volker Reichel, Klaus W. Moerl, Sonja Unger, Sylvia Jetschke, Hans-Rainer Mueller, Johannes Kirchof, Thomas Sandrock, Alexander Harschack, Andreas Liem, Jens Limpert, Holger Zellmer, and Andreas Tuennermann, “Fiber-laser power scaling beyond the 1-kilowatt level by Nd:Yb co-doping,” Proc. SPIE 5777, 404–407 (2005).
[Crossref]

Kirchof, Johannes

Volker Reichel, Klaus W. Moerl, Sonja Unger, Sylvia Jetschke, Hans-Rainer Mueller, Johannes Kirchof, Thomas Sandrock, Alexander Harschack, Andreas Liem, Jens Limpert, Holger Zellmer, and Andreas Tuennermann, “Fiber-laser power scaling beyond the 1-kilowatt level by Nd:Yb co-doping,” Proc. SPIE 5777, 404–407 (2005).
[Crossref]

Kobyakov, A.

Kumar, S.

Li, M.J.

M.J. Li, X. Chen, J. Wang, S. Gray, A. Liu, J.A. Demeritt, A. B. Ruffin, A.M. Crowley, D.T. Walton, and L.A. Zenteno, “Al/GE Co-doped large mode area fiber high SBS threshold,” Opt. Express 15, 8290–8299 (2007).
[Crossref] [PubMed]

D. Walton, S. Gray, J. Wang, M.J. Li, X. Chen, A. Liu, L.A. Zenteno, and A. Crowley, “Kilowatt-level, narrow-linewidth capable fibers and lasers,” Proc. SPIE 6453, 645314 (2007).
[Crossref]

Liem, A.

Liem, Andreas

Volker Reichel, Klaus W. Moerl, Sonja Unger, Sylvia Jetschke, Hans-Rainer Mueller, Johannes Kirchof, Thomas Sandrock, Alexander Harschack, Andreas Liem, Jens Limpert, Holger Zellmer, and Andreas Tuennermann, “Fiber-laser power scaling beyond the 1-kilowatt level by Nd:Yb co-doping,” Proc. SPIE 5777, 404–407 (2005).
[Crossref]

Limpert, Jens

Volker Reichel, Klaus W. Moerl, Sonja Unger, Sylvia Jetschke, Hans-Rainer Mueller, Johannes Kirchof, Thomas Sandrock, Alexander Harschack, Andreas Liem, Jens Limpert, Holger Zellmer, and Andreas Tuennermann, “Fiber-laser power scaling beyond the 1-kilowatt level by Nd:Yb co-doping,” Proc. SPIE 5777, 404–407 (2005).
[Crossref]

Liu, A.

Machewirth, D.P.

D.P. Machewirth, Q. Wang, B. Samson, K. Tankala, M. O’Connor, and M. Alam, “Current developments in high-power monolithic polarization maintaining fiber amplifiers for coherent beam combining applications,” Proc. SPIE6453, (2007).
[Crossref]

Mishra, R.

Moerl, Klaus W.

Volker Reichel, Klaus W. Moerl, Sonja Unger, Sylvia Jetschke, Hans-Rainer Mueller, Johannes Kirchof, Thomas Sandrock, Alexander Harschack, Andreas Liem, Jens Limpert, Holger Zellmer, and Andreas Tuennermann, “Fiber-laser power scaling beyond the 1-kilowatt level by Nd:Yb co-doping,” Proc. SPIE 5777, 404–407 (2005).
[Crossref]

Mueller, Hans-Rainer

Volker Reichel, Klaus W. Moerl, Sonja Unger, Sylvia Jetschke, Hans-Rainer Mueller, Johannes Kirchof, Thomas Sandrock, Alexander Harschack, Andreas Liem, Jens Limpert, Holger Zellmer, and Andreas Tuennermann, “Fiber-laser power scaling beyond the 1-kilowatt level by Nd:Yb co-doping,” Proc. SPIE 5777, 404–407 (2005).
[Crossref]

Nilsson, J.

D.N. Payne, Y. Jeong, J. Nilsson, J.K. Sahu, D. B. S. Soh, C. Alegria, P. Dupriez, C. A. Codemard, V. N. Philippov, V. Hernandez, R. Horley, L. Hickey, L. Wanzcyk, C. E. Chryssou, J. A. Alvarez-Chavez, and P. W. Turner, “Kilowatt-class single-frequency fiber sources,” Proc. SPIE 5709, 133–141 (2005).
[Crossref]

Y. Jeong, J.K. Sahu, D.N. Payne, and J. Nilsson, “Ytterbium-doped large-core fiber laser with 1.36 kW continuous-wave output power,” Opt. Express 12, 6088–6092 (2004).
[Crossref] [PubMed]

O’Connor, M.

D.P. Machewirth, Q. Wang, B. Samson, K. Tankala, M. O’Connor, and M. Alam, “Current developments in high-power monolithic polarization maintaining fiber amplifiers for coherent beam combining applications,” Proc. SPIE6453, (2007).
[Crossref]

Ostrom, N.

N. Ostrom, “Multi-Kilowatt High Brightness Fiber Coupled Diode Laser Systems,” Proc. SSDLTR2006

Papen, G.C.

P.D. Dragic, C.H.L., G.C. Papen, and A. Galvanauskas, “Optical fiber with an acoustic guiding layer for stimulated Brillouin scattering suppression,” in Conference on Lasers and Electro-Optics, paper CThZ3 (2005).

Payne, D.N.

D.N. Payne, Y. Jeong, J. Nilsson, J.K. Sahu, D. B. S. Soh, C. Alegria, P. Dupriez, C. A. Codemard, V. N. Philippov, V. Hernandez, R. Horley, L. Hickey, L. Wanzcyk, C. E. Chryssou, J. A. Alvarez-Chavez, and P. W. Turner, “Kilowatt-class single-frequency fiber sources,” Proc. SPIE 5709, 133–141 (2005).
[Crossref]

Y. Jeong, J.K. Sahu, D.N. Payne, and J. Nilsson, “Ytterbium-doped large-core fiber laser with 1.36 kW continuous-wave output power,” Opt. Express 12, 6088–6092 (2004).
[Crossref] [PubMed]

Philippov, V. N.

D.N. Payne, Y. Jeong, J. Nilsson, J.K. Sahu, D. B. S. Soh, C. Alegria, P. Dupriez, C. A. Codemard, V. N. Philippov, V. Hernandez, R. Horley, L. Hickey, L. Wanzcyk, C. E. Chryssou, J. A. Alvarez-Chavez, and P. W. Turner, “Kilowatt-class single-frequency fiber sources,” Proc. SPIE 5709, 133–141 (2005).
[Crossref]

Picholle, E.

J. Botineau, E. Picholle, and D. Bahloul, “Effective stimulated Brillouin gain in singlemode optical fibres,” Elect. Lett. 31, 2032–2034 (1995).
[Crossref]

Po, H.

Y. Wang, C.-Q. Xu, and H. Po, “Thermal effects in kilowatt fiber lasers,” IEEE Photon. Technol. Lett. 16, 63–65 (2004).
[Crossref]

Reichel, Volker

Volker Reichel, Klaus W. Moerl, Sonja Unger, Sylvia Jetschke, Hans-Rainer Mueller, Johannes Kirchof, Thomas Sandrock, Alexander Harschack, Andreas Liem, Jens Limpert, Holger Zellmer, and Andreas Tuennermann, “Fiber-laser power scaling beyond the 1-kilowatt level by Nd:Yb co-doping,” Proc. SPIE 5777, 404–407 (2005).
[Crossref]

Ruffin, A. B.

Sahu, J.K.

D.N. Payne, Y. Jeong, J. Nilsson, J.K. Sahu, D. B. S. Soh, C. Alegria, P. Dupriez, C. A. Codemard, V. N. Philippov, V. Hernandez, R. Horley, L. Hickey, L. Wanzcyk, C. E. Chryssou, J. A. Alvarez-Chavez, and P. W. Turner, “Kilowatt-class single-frequency fiber sources,” Proc. SPIE 5709, 133–141 (2005).
[Crossref]

Y. Jeong, J.K. Sahu, D.N. Payne, and J. Nilsson, “Ytterbium-doped large-core fiber laser with 1.36 kW continuous-wave output power,” Opt. Express 12, 6088–6092 (2004).
[Crossref] [PubMed]

Samson, B.

D.P. Machewirth, Q. Wang, B. Samson, K. Tankala, M. O’Connor, and M. Alam, “Current developments in high-power monolithic polarization maintaining fiber amplifiers for coherent beam combining applications,” Proc. SPIE6453, (2007).
[Crossref]

Sandrock, Thomas

Volker Reichel, Klaus W. Moerl, Sonja Unger, Sylvia Jetschke, Hans-Rainer Mueller, Johannes Kirchof, Thomas Sandrock, Alexander Harschack, Andreas Liem, Jens Limpert, Holger Zellmer, and Andreas Tuennermann, “Fiber-laser power scaling beyond the 1-kilowatt level by Nd:Yb co-doping,” Proc. SPIE 5777, 404–407 (2005).
[Crossref]

Sauer, M.

Soh, D. B. S.

D.N. Payne, Y. Jeong, J. Nilsson, J.K. Sahu, D. B. S. Soh, C. Alegria, P. Dupriez, C. A. Codemard, V. N. Philippov, V. Hernandez, R. Horley, L. Hickey, L. Wanzcyk, C. E. Chryssou, J. A. Alvarez-Chavez, and P. W. Turner, “Kilowatt-class single-frequency fiber sources,” Proc. SPIE 5709, 133–141 (2005).
[Crossref]

Tankala, K.

D.P. Machewirth, Q. Wang, B. Samson, K. Tankala, M. O’Connor, and M. Alam, “Current developments in high-power monolithic polarization maintaining fiber amplifiers for coherent beam combining applications,” Proc. SPIE6453, (2007).
[Crossref]

Tuennermann, Andreas

Volker Reichel, Klaus W. Moerl, Sonja Unger, Sylvia Jetschke, Hans-Rainer Mueller, Johannes Kirchof, Thomas Sandrock, Alexander Harschack, Andreas Liem, Jens Limpert, Holger Zellmer, and Andreas Tuennermann, “Fiber-laser power scaling beyond the 1-kilowatt level by Nd:Yb co-doping,” Proc. SPIE 5777, 404–407 (2005).
[Crossref]

Tunnermann, A.

Turner, P. W.

D.N. Payne, Y. Jeong, J. Nilsson, J.K. Sahu, D. B. S. Soh, C. Alegria, P. Dupriez, C. A. Codemard, V. N. Philippov, V. Hernandez, R. Horley, L. Hickey, L. Wanzcyk, C. E. Chryssou, J. A. Alvarez-Chavez, and P. W. Turner, “Kilowatt-class single-frequency fiber sources,” Proc. SPIE 5709, 133–141 (2005).
[Crossref]

Unger, Sonja

Volker Reichel, Klaus W. Moerl, Sonja Unger, Sylvia Jetschke, Hans-Rainer Mueller, Johannes Kirchof, Thomas Sandrock, Alexander Harschack, Andreas Liem, Jens Limpert, Holger Zellmer, and Andreas Tuennermann, “Fiber-laser power scaling beyond the 1-kilowatt level by Nd:Yb co-doping,” Proc. SPIE 5777, 404–407 (2005).
[Crossref]

Walton, D.

D. Walton, S. Gray, J. Wang, M.J. Li, X. Chen, A. Liu, L.A. Zenteno, and A. Crowley, “Kilowatt-level, narrow-linewidth capable fibers and lasers,” Proc. SPIE 6453, 645314 (2007).
[Crossref]

Walton, D.T.

Wang, J.

M.J. Li, X. Chen, J. Wang, S. Gray, A. Liu, J.A. Demeritt, A. B. Ruffin, A.M. Crowley, D.T. Walton, and L.A. Zenteno, “Al/GE Co-doped large mode area fiber high SBS threshold,” Opt. Express 15, 8290–8299 (2007).
[Crossref] [PubMed]

D. Walton, S. Gray, J. Wang, M.J. Li, X. Chen, A. Liu, L.A. Zenteno, and A. Crowley, “Kilowatt-level, narrow-linewidth capable fibers and lasers,” Proc. SPIE 6453, 645314 (2007).
[Crossref]

Wang, Q.

D.P. Machewirth, Q. Wang, B. Samson, K. Tankala, M. O’Connor, and M. Alam, “Current developments in high-power monolithic polarization maintaining fiber amplifiers for coherent beam combining applications,” Proc. SPIE6453, (2007).
[Crossref]

Wang, Y.

Y. Wang, C.-Q. Xu, and H. Po, “Thermal effects in kilowatt fiber lasers,” IEEE Photon. Technol. Lett. 16, 63–65 (2004).
[Crossref]

Wanzcyk, L.

D.N. Payne, Y. Jeong, J. Nilsson, J.K. Sahu, D. B. S. Soh, C. Alegria, P. Dupriez, C. A. Codemard, V. N. Philippov, V. Hernandez, R. Horley, L. Hickey, L. Wanzcyk, C. E. Chryssou, J. A. Alvarez-Chavez, and P. W. Turner, “Kilowatt-class single-frequency fiber sources,” Proc. SPIE 5709, 133–141 (2005).
[Crossref]

Xu, C.-Q.

Y. Wang, C.-Q. Xu, and H. Po, “Thermal effects in kilowatt fiber lasers,” IEEE Photon. Technol. Lett. 16, 63–65 (2004).
[Crossref]

Zellmer, H.

Zellmer, Holger

Volker Reichel, Klaus W. Moerl, Sonja Unger, Sylvia Jetschke, Hans-Rainer Mueller, Johannes Kirchof, Thomas Sandrock, Alexander Harschack, Andreas Liem, Jens Limpert, Holger Zellmer, and Andreas Tuennermann, “Fiber-laser power scaling beyond the 1-kilowatt level by Nd:Yb co-doping,” Proc. SPIE 5777, 404–407 (2005).
[Crossref]

Zenteno, L.A.

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Figures (10)

Fig. 1.
Fig. 1.

Schematic of two stage amplifier system with high SBS threshold fiber

Fig. 2.
Fig. 2.

Output power from 8.5 meter long, high SBS threshold fiber amplifier as a function of incident pump power.

Fig. 3.
Fig. 3.

Beam profile of single-mode amplifier output at 500 Watts

Fig. 4.
Fig. 4.

Output spectrum of high SBS threshold amplifier with 502 Watts of power

Fig. 5.
Fig. 5.

Backward propagating power measured as a function of forward output power for an 8.5 meter long amplifier.

Fig. 6.
Fig. 6.

Spectra of backward propagating light for 100 Watt and 500 Watt output powers from an 8.5 meter long amplifier.

Fig. 7.
Fig. 7.

Backward propagating power measured as a function of forward output power for a 13 meter long amplifier.

Fig. 8.
Fig. 8.

Spectra of backward propagating light at 300 Watts of output power from a 13 meter long amplifier.

Fig. 9.
Fig. 9.

Numerical simulation of LMA-2 data from [11]. Symbols represent experiment data and the solid line the simulation results.

Fig. 10.
Fig. 10.

Predicted signal and SBS powers for a counterpumped amplifier with 120 and 200 °C temperature gradients

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