Abstract

The beam quality of large-mode-area fiber amplifiers was investigated at the 10 W power level using a tunable ring cavity, that is also used in the laboratory system of GEO600 as a pre-mode-cleaner for mode filtering. More than 98% of the overall output power were contained within the polarized (200:1) TEM00 mode with an appropriate choice of coiling diameter. With the high sensitivity ring cavity analysis, the beam quality improvement caused by decreasing the coiling diameter was verified, while this could not be seen within conventional M2-measurements. The results are compared with the properties of single-mode fibers.

© 2003 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. D. Hammons, J. Anderegg, S. Brosnan, H. Komini, and M. Wickham, “High power fiber amplifiers for kilowatt fiber arrays,” in Conference on Lasers and Electro-Optics 2003, Technical Digest (Optical Society of America, Washington, D.C., 2003), Postdeadline paper CThPDB10.
  2. I. Zawischa, K. Plamann, C. Fallnich, H. Welling, H. Zellmer, and A. Tünnermann, “All-solid-state neodymium-based single-frequency master-oscillator fiber power-amplifier system emitting 5.5 W of radiation at 1064 nm,” Opt. Lett. 24, 469–471 (1999).
    [CrossRef]
  3. A. Liem, J. Limpert, H. Zellmer, and A. Tünnermann, “100-W single-frequency master-oscillator fiber power amplifier,” Opt. Lett. 28, 1537–1539 (2003).
    [CrossRef] [PubMed]
  4. J.P. Koplow, D.A.V. Kiner, and L. Goldberg, “Single-mode operation of a coiled multimode fiber amplifier,” Opt. Lett. 25, 442–444 (2000).
    [CrossRef]
  5. B. Willke, N. Uehara, E.K. Gustafson, R.L. Byer, P.J. King, S.U. Seel, and R.L. Savage, Jr., “Spatial and temporal filtering of a 10-W Nd:YAG laser with a Fabry-Perot ring-cavity premode cleaner,” Opt. Lett. 23, 1704–1706 (1998).
    [CrossRef]
  6. H.M. Pask, R.J. Carman, D.C. Hanna, A.C. Tropper, C.J. Mackechnie, P.R. Barber, and J.M. Dawes, “Ytterbium-Doped Silica Fiber Lasers: Versatile Sources for the 1–1.2 µm Region,” IEEE J. Sel. Top. Quantum Electron. 1, 2–13 (1995).
    [CrossRef]
  7. P. Weßels, M. Auerbach, and C. Fallnich, “Narrow-linewidth master oscillator fiber power amplifier system with very low amplified spontaneous emission,” Opt. Commun. 205, 215–219 (2002).
    [CrossRef]

2003 (1)

2002 (1)

P. Weßels, M. Auerbach, and C. Fallnich, “Narrow-linewidth master oscillator fiber power amplifier system with very low amplified spontaneous emission,” Opt. Commun. 205, 215–219 (2002).
[CrossRef]

2000 (1)

1999 (1)

1998 (1)

1995 (1)

H.M. Pask, R.J. Carman, D.C. Hanna, A.C. Tropper, C.J. Mackechnie, P.R. Barber, and J.M. Dawes, “Ytterbium-Doped Silica Fiber Lasers: Versatile Sources for the 1–1.2 µm Region,” IEEE J. Sel. Top. Quantum Electron. 1, 2–13 (1995).
[CrossRef]

Anderegg, J.

D. Hammons, J. Anderegg, S. Brosnan, H. Komini, and M. Wickham, “High power fiber amplifiers for kilowatt fiber arrays,” in Conference on Lasers and Electro-Optics 2003, Technical Digest (Optical Society of America, Washington, D.C., 2003), Postdeadline paper CThPDB10.

Auerbach, M.

P. Weßels, M. Auerbach, and C. Fallnich, “Narrow-linewidth master oscillator fiber power amplifier system with very low amplified spontaneous emission,” Opt. Commun. 205, 215–219 (2002).
[CrossRef]

Barber, P.R.

H.M. Pask, R.J. Carman, D.C. Hanna, A.C. Tropper, C.J. Mackechnie, P.R. Barber, and J.M. Dawes, “Ytterbium-Doped Silica Fiber Lasers: Versatile Sources for the 1–1.2 µm Region,” IEEE J. Sel. Top. Quantum Electron. 1, 2–13 (1995).
[CrossRef]

Brosnan, S.

D. Hammons, J. Anderegg, S. Brosnan, H. Komini, and M. Wickham, “High power fiber amplifiers for kilowatt fiber arrays,” in Conference on Lasers and Electro-Optics 2003, Technical Digest (Optical Society of America, Washington, D.C., 2003), Postdeadline paper CThPDB10.

Byer, R.L.

Carman, R.J.

H.M. Pask, R.J. Carman, D.C. Hanna, A.C. Tropper, C.J. Mackechnie, P.R. Barber, and J.M. Dawes, “Ytterbium-Doped Silica Fiber Lasers: Versatile Sources for the 1–1.2 µm Region,” IEEE J. Sel. Top. Quantum Electron. 1, 2–13 (1995).
[CrossRef]

Dawes, J.M.

H.M. Pask, R.J. Carman, D.C. Hanna, A.C. Tropper, C.J. Mackechnie, P.R. Barber, and J.M. Dawes, “Ytterbium-Doped Silica Fiber Lasers: Versatile Sources for the 1–1.2 µm Region,” IEEE J. Sel. Top. Quantum Electron. 1, 2–13 (1995).
[CrossRef]

Fallnich, C.

P. Weßels, M. Auerbach, and C. Fallnich, “Narrow-linewidth master oscillator fiber power amplifier system with very low amplified spontaneous emission,” Opt. Commun. 205, 215–219 (2002).
[CrossRef]

I. Zawischa, K. Plamann, C. Fallnich, H. Welling, H. Zellmer, and A. Tünnermann, “All-solid-state neodymium-based single-frequency master-oscillator fiber power-amplifier system emitting 5.5 W of radiation at 1064 nm,” Opt. Lett. 24, 469–471 (1999).
[CrossRef]

Goldberg, L.

Gustafson, E.K.

Hammons, D.

D. Hammons, J. Anderegg, S. Brosnan, H. Komini, and M. Wickham, “High power fiber amplifiers for kilowatt fiber arrays,” in Conference on Lasers and Electro-Optics 2003, Technical Digest (Optical Society of America, Washington, D.C., 2003), Postdeadline paper CThPDB10.

Hanna, D.C.

H.M. Pask, R.J. Carman, D.C. Hanna, A.C. Tropper, C.J. Mackechnie, P.R. Barber, and J.M. Dawes, “Ytterbium-Doped Silica Fiber Lasers: Versatile Sources for the 1–1.2 µm Region,” IEEE J. Sel. Top. Quantum Electron. 1, 2–13 (1995).
[CrossRef]

Kiner, D.A.V.

King, P.J.

Komini, H.

D. Hammons, J. Anderegg, S. Brosnan, H. Komini, and M. Wickham, “High power fiber amplifiers for kilowatt fiber arrays,” in Conference on Lasers and Electro-Optics 2003, Technical Digest (Optical Society of America, Washington, D.C., 2003), Postdeadline paper CThPDB10.

Koplow, J.P.

Liem, A.

Limpert, J.

Mackechnie, C.J.

H.M. Pask, R.J. Carman, D.C. Hanna, A.C. Tropper, C.J. Mackechnie, P.R. Barber, and J.M. Dawes, “Ytterbium-Doped Silica Fiber Lasers: Versatile Sources for the 1–1.2 µm Region,” IEEE J. Sel. Top. Quantum Electron. 1, 2–13 (1995).
[CrossRef]

Pask, H.M.

H.M. Pask, R.J. Carman, D.C. Hanna, A.C. Tropper, C.J. Mackechnie, P.R. Barber, and J.M. Dawes, “Ytterbium-Doped Silica Fiber Lasers: Versatile Sources for the 1–1.2 µm Region,” IEEE J. Sel. Top. Quantum Electron. 1, 2–13 (1995).
[CrossRef]

Plamann, K.

Savage, Jr., R.L.

Seel, S.U.

Tropper, A.C.

H.M. Pask, R.J. Carman, D.C. Hanna, A.C. Tropper, C.J. Mackechnie, P.R. Barber, and J.M. Dawes, “Ytterbium-Doped Silica Fiber Lasers: Versatile Sources for the 1–1.2 µm Region,” IEEE J. Sel. Top. Quantum Electron. 1, 2–13 (1995).
[CrossRef]

Tünnermann, A.

Uehara, N.

Welling, H.

Weßels, P.

P. Weßels, M. Auerbach, and C. Fallnich, “Narrow-linewidth master oscillator fiber power amplifier system with very low amplified spontaneous emission,” Opt. Commun. 205, 215–219 (2002).
[CrossRef]

Wickham, M.

D. Hammons, J. Anderegg, S. Brosnan, H. Komini, and M. Wickham, “High power fiber amplifiers for kilowatt fiber arrays,” in Conference on Lasers and Electro-Optics 2003, Technical Digest (Optical Society of America, Washington, D.C., 2003), Postdeadline paper CThPDB10.

Willke, B.

Zawischa, I.

Zellmer, H.

IEEE J. Sel. Top. Quantum Electron. (1)

H.M. Pask, R.J. Carman, D.C. Hanna, A.C. Tropper, C.J. Mackechnie, P.R. Barber, and J.M. Dawes, “Ytterbium-Doped Silica Fiber Lasers: Versatile Sources for the 1–1.2 µm Region,” IEEE J. Sel. Top. Quantum Electron. 1, 2–13 (1995).
[CrossRef]

Opt. Commun. (1)

P. Weßels, M. Auerbach, and C. Fallnich, “Narrow-linewidth master oscillator fiber power amplifier system with very low amplified spontaneous emission,” Opt. Commun. 205, 215–219 (2002).
[CrossRef]

Opt. Lett. (4)

Other (1)

D. Hammons, J. Anderegg, S. Brosnan, H. Komini, and M. Wickham, “High power fiber amplifiers for kilowatt fiber arrays,” in Conference on Lasers and Electro-Optics 2003, Technical Digest (Optical Society of America, Washington, D.C., 2003), Postdeadline paper CThPDB10.

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (4)

Fig. 1.
Fig. 1.

Setup of the fiber amplifier and the ring cavity. NPRO: nonplanar ring oscillator, DM: dichroic mirror, PBS: polarizing beam splitter, PR: partially reflecting mirror, MMO: mode-matching optics, RC: ring cavity, PD1/2: photodetectors, CCD: CCD-camera.

Fig. 2.
Fig. 2.

Polarized emission spectra of the Ytterbium-doped fiber amplifiers recorded with an effective resolution bandwidth of 0.55 nm. Blue: 4 µm-amplifier, red: 10 µm-amplifier, black: 29 µm large-mode-area amplifier with 21 cm coiling diameter. The spectra are normalized to the relative output power of the respective amplifiers.

Fig. 3.
Fig. 3.

Polarization ratio of the large-mode-area fiber amplifier for (a) 62 cm coiling diameter and (b) 21 cm coiling diameter. Dashed lines: 3rd order polynomial fits to guide the reader’s eye.

Fig. 4.
Fig. 4.

Reflected (a) and transmitted (b) power at the ring cavity for the large-mode-area fiber amplifier (coiling diameter: 21 cm). In the insets the respective full-scale scanning-signals are shown.

Metrics