Abstract

We report what is to our knowledge the first demonstration of pulse amplification in a cw-pumped fiber in which the doped gain medium has a ring shape surrounding a single-mode core. For a given pump power, ring doping reduces the gain and hence the power lost to amplified spontaneous emission. Thereby, a significantly larger amount of energy can be stored in the amplifier. Using an Yb3+-doped fiber pumped by 540  mW of power at 1000  nm, we measured 69 µJ of extracted pulse energy at 1047  nm, the highest value reported to date from a single-mode Yb3+-doped fiber. We predict that a fiber cladding pumped by a diode bar can produce pulse energies in excess of 1  mJ.

© 1997 Optical Society of America

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References

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  1. M. P. Petrov, R. V. Kiyan, E. A. Kuzin, E. A. Rogacheva, and V. V. Spirin, Opt. Commun. 109, 499 (1994).
    [CrossRef]
  2. A. E. Siegman, Lasers (University Science, Mill Valley, Calif., 1986).
  3. J. Nilsson and B. Jaskorzynska, Opt. Lett. 18, 2099 (1993).
    [CrossRef]
  4. C. R. Giles and E. Desurvire, J. Lighwave Technol. 9, 271 (1991).
    [CrossRef]
  5. H. M. Pask, R. J. Carman, D. C. Hanna, A. C. Tropper, C. J. MacKechnie, P. R. Barber, and J. M. Dawes, IEEE J. Sel. Topics Quantum Electron. 1, 2 (1995).
    [CrossRef]
  6. D. E. McCumber, Phys. Rev. 134A, 299 (1964).
    [CrossRef]
  7. R. Paschotta, J. Nilsson, P. R. Barber, A. C. Tropper, and D. C. Hanna, Opt. Commun. 136, 375 (1997).
    [CrossRef]
  8. D. T. Walton, J. Nees, and G. Mourou, Opt. Lett. 21, 1061 (1996).
    [CrossRef] [PubMed]
  9. Desthieux, R. I. Laming, and D. N. Payne, Appl. Phys. Lett. 63, 586 (1993).
    [CrossRef]
  10. H. M. Pask, J. L. Archambault, D. C. Hanna, L. Reekie, P. St. J. Russell, J. E. Townsend, and A. C. Tropper, Electron. Lett. 30, 863 (1994).
    [CrossRef]

1997 (1)

R. Paschotta, J. Nilsson, P. R. Barber, A. C. Tropper, and D. C. Hanna, Opt. Commun. 136, 375 (1997).
[CrossRef]

1996 (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, IEEE J. Sel. Topics Quantum Electron. 1, 2 (1995).
[CrossRef]

1994 (2)

M. P. Petrov, R. V. Kiyan, E. A. Kuzin, E. A. Rogacheva, and V. V. Spirin, Opt. Commun. 109, 499 (1994).
[CrossRef]

H. M. Pask, J. L. Archambault, D. C. Hanna, L. Reekie, P. St. J. Russell, J. E. Townsend, and A. C. Tropper, Electron. Lett. 30, 863 (1994).
[CrossRef]

1993 (2)

J. Nilsson and B. Jaskorzynska, Opt. Lett. 18, 2099 (1993).
[CrossRef]

Desthieux, R. I. Laming, and D. N. Payne, Appl. Phys. Lett. 63, 586 (1993).
[CrossRef]

1991 (1)

C. R. Giles and E. Desurvire, J. Lighwave Technol. 9, 271 (1991).
[CrossRef]

1964 (1)

D. E. McCumber, Phys. Rev. 134A, 299 (1964).
[CrossRef]

Archambault, J. L.

H. M. Pask, J. L. Archambault, D. C. Hanna, L. Reekie, P. St. J. Russell, J. E. Townsend, and A. C. Tropper, Electron. Lett. 30, 863 (1994).
[CrossRef]

Barber, P. R.

R. Paschotta, J. Nilsson, P. R. Barber, A. C. Tropper, and D. C. Hanna, Opt. Commun. 136, 375 (1997).
[CrossRef]

H. M. Pask, R. J. Carman, D. C. Hanna, A. C. Tropper, C. J. MacKechnie, P. R. Barber, and J. M. Dawes, IEEE J. Sel. Topics Quantum Electron. 1, 2 (1995).
[CrossRef]

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, IEEE J. Sel. Topics Quantum Electron. 1, 2 (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, IEEE J. Sel. Topics Quantum Electron. 1, 2 (1995).
[CrossRef]

Desthieux,

Desthieux, R. I. Laming, and D. N. Payne, Appl. Phys. Lett. 63, 586 (1993).
[CrossRef]

Desurvire, E.

C. R. Giles and E. Desurvire, J. Lighwave Technol. 9, 271 (1991).
[CrossRef]

Giles, C. R.

C. R. Giles and E. Desurvire, J. Lighwave Technol. 9, 271 (1991).
[CrossRef]

Hanna, D. C.

R. Paschotta, J. Nilsson, P. R. Barber, A. C. Tropper, and D. C. Hanna, Opt. Commun. 136, 375 (1997).
[CrossRef]

H. M. Pask, R. J. Carman, D. C. Hanna, A. C. Tropper, C. J. MacKechnie, P. R. Barber, and J. M. Dawes, IEEE J. Sel. Topics Quantum Electron. 1, 2 (1995).
[CrossRef]

H. M. Pask, J. L. Archambault, D. C. Hanna, L. Reekie, P. St. J. Russell, J. E. Townsend, and A. C. Tropper, Electron. Lett. 30, 863 (1994).
[CrossRef]

Jaskorzynska, B.

Kiyan, R. V.

M. P. Petrov, R. V. Kiyan, E. A. Kuzin, E. A. Rogacheva, and V. V. Spirin, Opt. Commun. 109, 499 (1994).
[CrossRef]

Kuzin, E. A.

M. P. Petrov, R. V. Kiyan, E. A. Kuzin, E. A. Rogacheva, and V. V. Spirin, Opt. Commun. 109, 499 (1994).
[CrossRef]

Laming, R. I.

Desthieux, R. I. Laming, and D. N. Payne, Appl. Phys. Lett. 63, 586 (1993).
[CrossRef]

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, IEEE J. Sel. Topics Quantum Electron. 1, 2 (1995).
[CrossRef]

McCumber, D. E.

D. E. McCumber, Phys. Rev. 134A, 299 (1964).
[CrossRef]

Mourou, G.

Nees, J.

Nilsson, J.

R. Paschotta, J. Nilsson, P. R. Barber, A. C. Tropper, and D. C. Hanna, Opt. Commun. 136, 375 (1997).
[CrossRef]

J. Nilsson and B. Jaskorzynska, Opt. Lett. 18, 2099 (1993).
[CrossRef]

Paschotta, R.

R. Paschotta, J. Nilsson, P. R. Barber, A. C. Tropper, and D. C. Hanna, Opt. Commun. 136, 375 (1997).
[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, IEEE J. Sel. Topics Quantum Electron. 1, 2 (1995).
[CrossRef]

H. M. Pask, J. L. Archambault, D. C. Hanna, L. Reekie, P. St. J. Russell, J. E. Townsend, and A. C. Tropper, Electron. Lett. 30, 863 (1994).
[CrossRef]

Payne, D. N.

Desthieux, R. I. Laming, and D. N. Payne, Appl. Phys. Lett. 63, 586 (1993).
[CrossRef]

Petrov, M. P.

M. P. Petrov, R. V. Kiyan, E. A. Kuzin, E. A. Rogacheva, and V. V. Spirin, Opt. Commun. 109, 499 (1994).
[CrossRef]

Reekie, L.

H. M. Pask, J. L. Archambault, D. C. Hanna, L. Reekie, P. St. J. Russell, J. E. Townsend, and A. C. Tropper, Electron. Lett. 30, 863 (1994).
[CrossRef]

Rogacheva, E. A.

M. P. Petrov, R. V. Kiyan, E. A. Kuzin, E. A. Rogacheva, and V. V. Spirin, Opt. Commun. 109, 499 (1994).
[CrossRef]

Russell, P. St. J.

H. M. Pask, J. L. Archambault, D. C. Hanna, L. Reekie, P. St. J. Russell, J. E. Townsend, and A. C. Tropper, Electron. Lett. 30, 863 (1994).
[CrossRef]

Siegman, A. E.

A. E. Siegman, Lasers (University Science, Mill Valley, Calif., 1986).

Spirin, V. V.

M. P. Petrov, R. V. Kiyan, E. A. Kuzin, E. A. Rogacheva, and V. V. Spirin, Opt. Commun. 109, 499 (1994).
[CrossRef]

Townsend, J. E.

H. M. Pask, J. L. Archambault, D. C. Hanna, L. Reekie, P. St. J. Russell, J. E. Townsend, and A. C. Tropper, Electron. Lett. 30, 863 (1994).
[CrossRef]

Tropper, A. C.

R. Paschotta, J. Nilsson, P. R. Barber, A. C. Tropper, and D. C. Hanna, Opt. Commun. 136, 375 (1997).
[CrossRef]

H. M. Pask, R. J. Carman, D. C. Hanna, A. C. Tropper, C. J. MacKechnie, P. R. Barber, and J. M. Dawes, IEEE J. Sel. Topics Quantum Electron. 1, 2 (1995).
[CrossRef]

H. M. Pask, J. L. Archambault, D. C. Hanna, L. Reekie, P. St. J. Russell, J. E. Townsend, and A. C. Tropper, Electron. Lett. 30, 863 (1994).
[CrossRef]

Walton, D. T.

Appl. Phys. Lett. (1)

Desthieux, R. I. Laming, and D. N. Payne, Appl. Phys. Lett. 63, 586 (1993).
[CrossRef]

Electron. Lett. (1)

H. M. Pask, J. L. Archambault, D. C. Hanna, L. Reekie, P. St. J. Russell, J. E. Townsend, and A. C. Tropper, Electron. Lett. 30, 863 (1994).
[CrossRef]

IEEE J. Sel. Topics 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, IEEE J. Sel. Topics Quantum Electron. 1, 2 (1995).
[CrossRef]

J. Lighwave Technol. (1)

C. R. Giles and E. Desurvire, J. Lighwave Technol. 9, 271 (1991).
[CrossRef]

Opt. Commun. (2)

R. Paschotta, J. Nilsson, P. R. Barber, A. C. Tropper, and D. C. Hanna, Opt. Commun. 136, 375 (1997).
[CrossRef]

M. P. Petrov, R. V. Kiyan, E. A. Kuzin, E. A. Rogacheva, and V. V. Spirin, Opt. Commun. 109, 499 (1994).
[CrossRef]

Opt. Lett. (2)

Phys. Rev. (1)

D. E. McCumber, Phys. Rev. 134A, 299 (1964).
[CrossRef]

Other (1)

A. E. Siegman, Lasers (University Science, Mill Valley, Calif., 1986).

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Figures (3)

Fig. 1
Fig. 1

Refractive-index profile (dashed curve) and normalized modal intensity at 1047  nm (dotted curve) of the fiber used. Also, the Yb3+-doped ring is indicated (solid curve). Inset: Schematic cross-sectional view of the ring-doped fiber.

Fig. 2
Fig. 2

Output pulse power, extracted energy, and instantaneous gain compression relative to the peak gain versus time. The area between the output pulse power and the saturated output power represents the extracted energy. The curves for the instantaneous gain compression and the extracted energy virtually coincide.

Fig. 3
Fig. 3

Measured remaining (saturated) gain (squares), extracted pulse energy (triangles), and remaining extractable energy (circles) versus launched pump power. The calculated remaining gain (dashed curve) and extracted energy (solid curve) are also shown.

Equations (3)

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G=4.343Ψdopedσesn2-σas1-n2N0Adoped-αbgsL=4.343Ψdopedσes+σasn2-n2bleachN0Adoped-αbgsL,
G+αbgsL=4.343ΨdopedEextract/Usat=4.343Eextract/Esat.
Emax=LeffdEextract/dz=αsss/αbgs×hνn2-n2bleach/σas/Ψdoped,

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