Abstract

We report on a Q-switched, cladding-pumped, ytterbium-doped large-mode-area fiber laser operating at 1090 nm that is capable of generating 2.3 mJ of output pulse energy at a 500-Hz repetition rate and more than 5 W of average output power at higher repetition rates in a high-brightness beam M2=3. Using a similar fiber with a smaller core, we generated >0.5mJ pulses in a diffraction-limited beam. Our results represent a threefold increase in pulse energy over previously published values for Q-switched fiber lasers and firmly establish fiber lasers as compact, multiwatt, multimillijoule pulse sources with large scope for both industrial and scientific applications.

© 2000 Optical Society of America

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  1. V. Dominic, S. MacCormack, R. Waarts, S. Stevens, S. Bicknese, R. Dohle, E. Wolak, P. S. Yeh, and E. Zucker, in Conference on Lasers and Electro Optics (CLEO/US) (Optical Society of America, Washington, D.C., 1999), postdeadline paper CPD11.
  2. D. Taverner, D. J. Richardson, L. Dong, and J. E. Caplen, Opt. Lett. 22, 378 (1997).
    [CrossRef] [PubMed]
  3. H. L. Offerhaus, N. G. R. Broderick, R. S. Sammut, L. Dong, J. E. Caplen, and D. J. Richardson, Opt. Lett. 23, 1683 (1998).
    [CrossRef]
  4. J. M. Sousa and O. G. Okhotnikov, Appl. Phys. Lett. 74, 1528 (1999).
    [CrossRef]
  5. M. E. Fermann, Opt. Lett. 23, 52 (1998).
    [CrossRef]
  6. N. G. R. Broderick, H. L. Offerhaus, D. J. Richardson, R. A. Sammut, J. Caplen, and L. Dong, Opt. Fiber Technol. 5, 185 (1999).
    [CrossRef]
  7. J. Nilsson, J. A. Alvarez-Chavez, P. W. Turner, W. A. Clarkson, C. C. Renaud, and A. B. Grudinin, in Advanced Solid State Lasers, M. M. Fejer, H. Injeyan, and U. Keller, eds. Vol. 26 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1999), paper WA2.
  8. L. Goldberg, J. P. Koplow, and D. A. V. Kliner, Opt. Lett. 24, 673 (1999).
    [CrossRef]
  9. M. Muendel, in Conference on Lasers and Electro-Optics, Vol. 9 of 1996 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1996), paper CTuU2.
  10. W. A. Clarkson and D. C. Hanna, Opt. Lett. 21, 375 (1996).
    [CrossRef] [PubMed]
  11. R. Paschotta, J. Nilsson, A. C. Tropper, and D. C. Hanna, IEEE J. Quantum Electron. 33, 1049 (1997).
    [CrossRef]
  12. J. Nilsson, S. Y. Yun, S. T. Hwang, J. M. Kim, and S. J. Kim, IEEE Photon. Technol. Lett. 10, 1551 (1998).
    [CrossRef]

1999

J. M. Sousa and O. G. Okhotnikov, Appl. Phys. Lett. 74, 1528 (1999).
[CrossRef]

N. G. R. Broderick, H. L. Offerhaus, D. J. Richardson, R. A. Sammut, J. Caplen, and L. Dong, Opt. Fiber Technol. 5, 185 (1999).
[CrossRef]

L. Goldberg, J. P. Koplow, and D. A. V. Kliner, Opt. Lett. 24, 673 (1999).
[CrossRef]

1998

1997

D. Taverner, D. J. Richardson, L. Dong, and J. E. Caplen, Opt. Lett. 22, 378 (1997).
[CrossRef] [PubMed]

R. Paschotta, J. Nilsson, A. C. Tropper, and D. C. Hanna, IEEE J. Quantum Electron. 33, 1049 (1997).
[CrossRef]

1996

Alvarez-Chavez, J. A.

J. Nilsson, J. A. Alvarez-Chavez, P. W. Turner, W. A. Clarkson, C. C. Renaud, and A. B. Grudinin, in Advanced Solid State Lasers, M. M. Fejer, H. Injeyan, and U. Keller, eds. Vol. 26 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1999), paper WA2.

Bicknese, S.

V. Dominic, S. MacCormack, R. Waarts, S. Stevens, S. Bicknese, R. Dohle, E. Wolak, P. S. Yeh, and E. Zucker, in Conference on Lasers and Electro Optics (CLEO/US) (Optical Society of America, Washington, D.C., 1999), postdeadline paper CPD11.

Broderick, N. G. R.

N. G. R. Broderick, H. L. Offerhaus, D. J. Richardson, R. A. Sammut, J. Caplen, and L. Dong, Opt. Fiber Technol. 5, 185 (1999).
[CrossRef]

H. L. Offerhaus, N. G. R. Broderick, R. S. Sammut, L. Dong, J. E. Caplen, and D. J. Richardson, Opt. Lett. 23, 1683 (1998).
[CrossRef]

Caplen, J.

N. G. R. Broderick, H. L. Offerhaus, D. J. Richardson, R. A. Sammut, J. Caplen, and L. Dong, Opt. Fiber Technol. 5, 185 (1999).
[CrossRef]

Caplen, J. E.

Clarkson, W. A.

W. A. Clarkson and D. C. Hanna, Opt. Lett. 21, 375 (1996).
[CrossRef] [PubMed]

J. Nilsson, J. A. Alvarez-Chavez, P. W. Turner, W. A. Clarkson, C. C. Renaud, and A. B. Grudinin, in Advanced Solid State Lasers, M. M. Fejer, H. Injeyan, and U. Keller, eds. Vol. 26 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1999), paper WA2.

Dohle, R.

V. Dominic, S. MacCormack, R. Waarts, S. Stevens, S. Bicknese, R. Dohle, E. Wolak, P. S. Yeh, and E. Zucker, in Conference on Lasers and Electro Optics (CLEO/US) (Optical Society of America, Washington, D.C., 1999), postdeadline paper CPD11.

Dominic, V.

V. Dominic, S. MacCormack, R. Waarts, S. Stevens, S. Bicknese, R. Dohle, E. Wolak, P. S. Yeh, and E. Zucker, in Conference on Lasers and Electro Optics (CLEO/US) (Optical Society of America, Washington, D.C., 1999), postdeadline paper CPD11.

Dong, L.

Fermann, M. E.

Goldberg, L.

Grudinin, A. B.

J. Nilsson, J. A. Alvarez-Chavez, P. W. Turner, W. A. Clarkson, C. C. Renaud, and A. B. Grudinin, in Advanced Solid State Lasers, M. M. Fejer, H. Injeyan, and U. Keller, eds. Vol. 26 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1999), paper WA2.

Hanna, D. C.

R. Paschotta, J. Nilsson, A. C. Tropper, and D. C. Hanna, IEEE J. Quantum Electron. 33, 1049 (1997).
[CrossRef]

W. A. Clarkson and D. C. Hanna, Opt. Lett. 21, 375 (1996).
[CrossRef] [PubMed]

Hwang, S. T.

J. Nilsson, S. Y. Yun, S. T. Hwang, J. M. Kim, and S. J. Kim, IEEE Photon. Technol. Lett. 10, 1551 (1998).
[CrossRef]

Kim, J. M.

J. Nilsson, S. Y. Yun, S. T. Hwang, J. M. Kim, and S. J. Kim, IEEE Photon. Technol. Lett. 10, 1551 (1998).
[CrossRef]

Kim, S. J.

J. Nilsson, S. Y. Yun, S. T. Hwang, J. M. Kim, and S. J. Kim, IEEE Photon. Technol. Lett. 10, 1551 (1998).
[CrossRef]

Kliner, D. A. V.

Koplow, J. P.

MacCormack, S.

V. Dominic, S. MacCormack, R. Waarts, S. Stevens, S. Bicknese, R. Dohle, E. Wolak, P. S. Yeh, and E. Zucker, in Conference on Lasers and Electro Optics (CLEO/US) (Optical Society of America, Washington, D.C., 1999), postdeadline paper CPD11.

Muendel, M.

M. Muendel, in Conference on Lasers and Electro-Optics, Vol. 9 of 1996 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1996), paper CTuU2.

Nilsson, J.

J. Nilsson, S. Y. Yun, S. T. Hwang, J. M. Kim, and S. J. Kim, IEEE Photon. Technol. Lett. 10, 1551 (1998).
[CrossRef]

R. Paschotta, J. Nilsson, A. C. Tropper, and D. C. Hanna, IEEE J. Quantum Electron. 33, 1049 (1997).
[CrossRef]

J. Nilsson, J. A. Alvarez-Chavez, P. W. Turner, W. A. Clarkson, C. C. Renaud, and A. B. Grudinin, in Advanced Solid State Lasers, M. M. Fejer, H. Injeyan, and U. Keller, eds. Vol. 26 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1999), paper WA2.

Offerhaus, H. L.

N. G. R. Broderick, H. L. Offerhaus, D. J. Richardson, R. A. Sammut, J. Caplen, and L. Dong, Opt. Fiber Technol. 5, 185 (1999).
[CrossRef]

H. L. Offerhaus, N. G. R. Broderick, R. S. Sammut, L. Dong, J. E. Caplen, and D. J. Richardson, Opt. Lett. 23, 1683 (1998).
[CrossRef]

Okhotnikov, O. G.

J. M. Sousa and O. G. Okhotnikov, Appl. Phys. Lett. 74, 1528 (1999).
[CrossRef]

Paschotta, R.

R. Paschotta, J. Nilsson, A. C. Tropper, and D. C. Hanna, IEEE J. Quantum Electron. 33, 1049 (1997).
[CrossRef]

Renaud, C. C.

J. Nilsson, J. A. Alvarez-Chavez, P. W. Turner, W. A. Clarkson, C. C. Renaud, and A. B. Grudinin, in Advanced Solid State Lasers, M. M. Fejer, H. Injeyan, and U. Keller, eds. Vol. 26 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1999), paper WA2.

Richardson, D. J.

Sammut, R. A.

N. G. R. Broderick, H. L. Offerhaus, D. J. Richardson, R. A. Sammut, J. Caplen, and L. Dong, Opt. Fiber Technol. 5, 185 (1999).
[CrossRef]

Sammut, R. S.

Sousa, J. M.

J. M. Sousa and O. G. Okhotnikov, Appl. Phys. Lett. 74, 1528 (1999).
[CrossRef]

Stevens, S.

V. Dominic, S. MacCormack, R. Waarts, S. Stevens, S. Bicknese, R. Dohle, E. Wolak, P. S. Yeh, and E. Zucker, in Conference on Lasers and Electro Optics (CLEO/US) (Optical Society of America, Washington, D.C., 1999), postdeadline paper CPD11.

Taverner, D.

Tropper, A. C.

R. Paschotta, J. Nilsson, A. C. Tropper, and D. C. Hanna, IEEE J. Quantum Electron. 33, 1049 (1997).
[CrossRef]

Turner, P. W.

J. Nilsson, J. A. Alvarez-Chavez, P. W. Turner, W. A. Clarkson, C. C. Renaud, and A. B. Grudinin, in Advanced Solid State Lasers, M. M. Fejer, H. Injeyan, and U. Keller, eds. Vol. 26 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1999), paper WA2.

Waarts, R.

V. Dominic, S. MacCormack, R. Waarts, S. Stevens, S. Bicknese, R. Dohle, E. Wolak, P. S. Yeh, and E. Zucker, in Conference on Lasers and Electro Optics (CLEO/US) (Optical Society of America, Washington, D.C., 1999), postdeadline paper CPD11.

Wolak, E.

V. Dominic, S. MacCormack, R. Waarts, S. Stevens, S. Bicknese, R. Dohle, E. Wolak, P. S. Yeh, and E. Zucker, in Conference on Lasers and Electro Optics (CLEO/US) (Optical Society of America, Washington, D.C., 1999), postdeadline paper CPD11.

Yeh, P. S.

V. Dominic, S. MacCormack, R. Waarts, S. Stevens, S. Bicknese, R. Dohle, E. Wolak, P. S. Yeh, and E. Zucker, in Conference on Lasers and Electro Optics (CLEO/US) (Optical Society of America, Washington, D.C., 1999), postdeadline paper CPD11.

Yun, S. Y.

J. Nilsson, S. Y. Yun, S. T. Hwang, J. M. Kim, and S. J. Kim, IEEE Photon. Technol. Lett. 10, 1551 (1998).
[CrossRef]

Zucker, E.

V. Dominic, S. MacCormack, R. Waarts, S. Stevens, S. Bicknese, R. Dohle, E. Wolak, P. S. Yeh, and E. Zucker, in Conference on Lasers and Electro Optics (CLEO/US) (Optical Society of America, Washington, D.C., 1999), postdeadline paper CPD11.

Appl. Phys. Lett.

J. M. Sousa and O. G. Okhotnikov, Appl. Phys. Lett. 74, 1528 (1999).
[CrossRef]

IEEE J. Quantum Electron.

R. Paschotta, J. Nilsson, A. C. Tropper, and D. C. Hanna, IEEE J. Quantum Electron. 33, 1049 (1997).
[CrossRef]

IEEE Photon. Technol. Lett.

J. Nilsson, S. Y. Yun, S. T. Hwang, J. M. Kim, and S. J. Kim, IEEE Photon. Technol. Lett. 10, 1551 (1998).
[CrossRef]

Opt. Fiber Technol.

N. G. R. Broderick, H. L. Offerhaus, D. J. Richardson, R. A. Sammut, J. Caplen, and L. Dong, Opt. Fiber Technol. 5, 185 (1999).
[CrossRef]

Opt. Lett.

Other

V. Dominic, S. MacCormack, R. Waarts, S. Stevens, S. Bicknese, R. Dohle, E. Wolak, P. S. Yeh, and E. Zucker, in Conference on Lasers and Electro Optics (CLEO/US) (Optical Society of America, Washington, D.C., 1999), postdeadline paper CPD11.

M. Muendel, in Conference on Lasers and Electro-Optics, Vol. 9 of 1996 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1996), paper CTuU2.

J. Nilsson, J. A. Alvarez-Chavez, P. W. Turner, W. A. Clarkson, C. C. Renaud, and A. B. Grudinin, in Advanced Solid State Lasers, M. M. Fejer, H. Injeyan, and U. Keller, eds. Vol. 26 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1999), paper WA2.

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Figures (3)

Fig. 1
Fig. 1

Core index profile, as evaluated in the preform and scaled to the fiber dimension 350 µm. The outer ring of raised index increases the mode area and reduces the bend loss of the fundamental mode. During the preform fabrication ytterbium is incorporated into the inner ring only. Dashed lines, width of the outer cladding in the milled 175µm direction.

Fig. 2
Fig. 2

Experimental configuration. We used two different outcoupling arrangements, either simply a perpendicularly polished fiber facet or the arrangement inside the dashed rectangle, with a slightly angled fiber end, a 5-nm-wide bandpass filter operating at 1035 nm, and a highly reflective mirror.

Fig. 3
Fig. 3

Pulse energy and average power as a function of repetition frequency for several incident powers: A, without ASE feedback; B, with ASE feedback. Note that the average power measurements in A also include a contribution from ASE emitted between pulses. This contribution was negligible at repetition rates of 10 kHz and above.

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