Abstract

We report on a large-core, Er-doped fiber amplifier that generates pulses of ~1.1ns duration and maximum pulse energy/peak power ~1.4 mJ/1.2 MW, at 1567nm wavelength, while concurrently providing optical gain in excess of 25 dB, in a multi-mode output beam (M2 ~8.5).

©2008 Optical Society of America

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  1. C. D. Brooks and F. Di Teodoro, “1-mJ energy, 1-MW peak-power, 10-W average-power, spectrally narrow, diffraction-limited pulses from a photonic-crystal fiber amplifier,” Opt. Express 13, 8999–9002 (2005), http://www.opticsinfobase.org/abstract.cfm?URI=oe-13-22-8999.
    [Crossref] [PubMed]
  2. R. L. Farrow, D. A. V. Kliner, P. E. Schrader, A. A. Hoops, S. W. Moore, G. R. Hadley, and R. L. Schmitt, “High-peak-power (>1.2MW) pulsed fiber amplifier,” Proc. SPIE 6102, 61020L (2006).
    [Crossref]
  3. W. E. Torruellas, Y. Chen, B. McIntosh, J. Farroni, K. Tankala, S. Webster, D. J. Hagan, and M. J. Soileau, “High peak power ytterbium doped fiber amplifiers,” Proc. SPIE 6102, 61020N (2006).
    [Crossref]
  4. M.-Y. Cheng, Y-C. Chang, A. Galvanauskas, P. Mamidipudi, R. Changkakoti, and P. Gatchell, “Highenergy and high-peak-power nanosecond pulse generation with beam quality control in 200-µm core highly multimode Yb-doped fiberamplifiers,” Opt. Lett. 30, 358–360 (2005).
    [Crossref] [PubMed]
  5. C. D. Brooks and F. Di Teodoro, “Multi-megawatt peak-power, single-transverse-mode operation of a 100µm core diameter, Yb-doped rod-like photonic crystal fiber amplifier,” Appl. Phys. Lett. 89, 111119–111122 (2006).
    [Crossref]
  6. F. Di Teodoro, M. Savage-Leuchs, and M. Norsen, “High-power pulsed fiber source at 1567nm,” Electron. Lett. 40, 1525–1526 (2004).
    [Crossref]
  7. B. Desthieux, R. I. Laming, and D. N. Payne, “111 kW (0.5 mJ) pulse amplification at 1.5 µm using a gated cascade of three erbium-doped fiber amplifiers,” Appl. Phys. Lett. 63, 586–588 (1993).
    [Crossref]
  8. M. Savage-Leuchs, E. Eisenberg, A. Liu, J. Henrie, M. Bowers, and A. J. W. Brown, “High pulse energy extraction with high peak power from short-pulse, eye-safe all-fiber laser system,” Proc. SPIE 6102, 610207 (2006).
    [Crossref]
  9. B. C. Dickinson, S. D. Jackson, and T. A. King, “10mJ total output from a gain-switched Tm-doped fiber laser,” Opt. Commun. 182, 199–203 (2000).
    [Crossref]
  10. V. N. Philippov, J. K. Sahu, C. A. Codemard, W. A. Clarkson, J.-N. Jang, J. Nilsson, and G. N. Pearson, “All-fiber 1.15-mJ pulsed eye-safe optical source,” Proc. SPIE 5335, 1 (2004).
    [Crossref]
  11. Y. Zhang, B. -Q. Yao, Y. -L. Ju, and Y. -Z. Wang, “Gain-switched Tm3+-doped double-clad silica fiber laser,” Opt. Express 13, 1085–1089 (2005), http://www.opticsinfobase.org/abstract.cfm?URI=oe-13-4-1085.
    [Crossref] [PubMed]
  12. Y. Jeong, J. K. Sahu, D. B. S. Soh, C. A. Codemard, and J. Nilsson, “High-power tunable single-frequency single-mode erbium: ytterbium codoped large-core fiber master-oscillator power amplifier source,” Opt. Lett. 30, 2997–2999 (2005).
    [Crossref] [PubMed]
  13. D. Taverner, D. J. Richardson, L. Dong, J. E. Caplen, K. Williams, and R. V. Penty, “158-µJ pulses from a single-transverse-mode, large-mode-area erbium-doped fiber amplifier,” Opt. Lett. 22, 378–380 (1997).
    [Crossref] [PubMed]
  14. J. Minelly, F. Di Teodoro, M. Savage-Leuchs, D. Alterman, S. Desmoulins, C. Brooks, and E Eisenberg, “High peak power and high energy fiber amplifiers,” Proc. SPIE 6453, 645302-1(2007).
    [Crossref]
  15. S. Desmoulins and F. Di Teodoro, “Watt-level, high-repetition-rate, mid-infrared pulses generated by wavelength conversion of an eye-safe fiber source,” Opt. Lett. 32, 56–58 (2007).
    [Crossref]
  16. G. P. Agrawal, Nonlinear Fiber Optics (Academic Press, 2001, Third Edition), Chap. 4.1.4.
  17. J.C. Jasapara, M. J. Andrejco, A. D. Yablon, J. W. Nicholson, C. Headley, and D. DiGiovanni, “Picosecond pulse amplification in a core-pumped large-mode-area erbium fiber,” Opt. Lett. 32, 2429–2431(2007).
    [Crossref] [PubMed]

2007 (3)

2006 (4)

R. L. Farrow, D. A. V. Kliner, P. E. Schrader, A. A. Hoops, S. W. Moore, G. R. Hadley, and R. L. Schmitt, “High-peak-power (>1.2MW) pulsed fiber amplifier,” Proc. SPIE 6102, 61020L (2006).
[Crossref]

W. E. Torruellas, Y. Chen, B. McIntosh, J. Farroni, K. Tankala, S. Webster, D. J. Hagan, and M. J. Soileau, “High peak power ytterbium doped fiber amplifiers,” Proc. SPIE 6102, 61020N (2006).
[Crossref]

C. D. Brooks and F. Di Teodoro, “Multi-megawatt peak-power, single-transverse-mode operation of a 100µm core diameter, Yb-doped rod-like photonic crystal fiber amplifier,” Appl. Phys. Lett. 89, 111119–111122 (2006).
[Crossref]

M. Savage-Leuchs, E. Eisenberg, A. Liu, J. Henrie, M. Bowers, and A. J. W. Brown, “High pulse energy extraction with high peak power from short-pulse, eye-safe all-fiber laser system,” Proc. SPIE 6102, 610207 (2006).
[Crossref]

2005 (4)

2004 (2)

F. Di Teodoro, M. Savage-Leuchs, and M. Norsen, “High-power pulsed fiber source at 1567nm,” Electron. Lett. 40, 1525–1526 (2004).
[Crossref]

V. N. Philippov, J. K. Sahu, C. A. Codemard, W. A. Clarkson, J.-N. Jang, J. Nilsson, and G. N. Pearson, “All-fiber 1.15-mJ pulsed eye-safe optical source,” Proc. SPIE 5335, 1 (2004).
[Crossref]

2000 (1)

B. C. Dickinson, S. D. Jackson, and T. A. King, “10mJ total output from a gain-switched Tm-doped fiber laser,” Opt. Commun. 182, 199–203 (2000).
[Crossref]

1997 (1)

1993 (1)

B. Desthieux, R. I. Laming, and D. N. Payne, “111 kW (0.5 mJ) pulse amplification at 1.5 µm using a gated cascade of three erbium-doped fiber amplifiers,” Appl. Phys. Lett. 63, 586–588 (1993).
[Crossref]

Agrawal, G. P.

G. P. Agrawal, Nonlinear Fiber Optics (Academic Press, 2001, Third Edition), Chap. 4.1.4.

Alterman, D.

J. Minelly, F. Di Teodoro, M. Savage-Leuchs, D. Alterman, S. Desmoulins, C. Brooks, and E Eisenberg, “High peak power and high energy fiber amplifiers,” Proc. SPIE 6453, 645302-1(2007).
[Crossref]

Andrejco, M. J.

Bowers, M.

M. Savage-Leuchs, E. Eisenberg, A. Liu, J. Henrie, M. Bowers, and A. J. W. Brown, “High pulse energy extraction with high peak power from short-pulse, eye-safe all-fiber laser system,” Proc. SPIE 6102, 610207 (2006).
[Crossref]

Brooks, C.

J. Minelly, F. Di Teodoro, M. Savage-Leuchs, D. Alterman, S. Desmoulins, C. Brooks, and E Eisenberg, “High peak power and high energy fiber amplifiers,” Proc. SPIE 6453, 645302-1(2007).
[Crossref]

Brooks, C. D.

C. D. Brooks and F. Di Teodoro, “Multi-megawatt peak-power, single-transverse-mode operation of a 100µm core diameter, Yb-doped rod-like photonic crystal fiber amplifier,” Appl. Phys. Lett. 89, 111119–111122 (2006).
[Crossref]

C. D. Brooks and F. Di Teodoro, “1-mJ energy, 1-MW peak-power, 10-W average-power, spectrally narrow, diffraction-limited pulses from a photonic-crystal fiber amplifier,” Opt. Express 13, 8999–9002 (2005), http://www.opticsinfobase.org/abstract.cfm?URI=oe-13-22-8999.
[Crossref] [PubMed]

Brown, A. J. W.

M. Savage-Leuchs, E. Eisenberg, A. Liu, J. Henrie, M. Bowers, and A. J. W. Brown, “High pulse energy extraction with high peak power from short-pulse, eye-safe all-fiber laser system,” Proc. SPIE 6102, 610207 (2006).
[Crossref]

Caplen, J. E.

Chang, Y-C.

Changkakoti, R.

Chen, Y.

W. E. Torruellas, Y. Chen, B. McIntosh, J. Farroni, K. Tankala, S. Webster, D. J. Hagan, and M. J. Soileau, “High peak power ytterbium doped fiber amplifiers,” Proc. SPIE 6102, 61020N (2006).
[Crossref]

Cheng, M.-Y.

Clarkson, W. A.

V. N. Philippov, J. K. Sahu, C. A. Codemard, W. A. Clarkson, J.-N. Jang, J. Nilsson, and G. N. Pearson, “All-fiber 1.15-mJ pulsed eye-safe optical source,” Proc. SPIE 5335, 1 (2004).
[Crossref]

Codemard, C. A.

Y. Jeong, J. K. Sahu, D. B. S. Soh, C. A. Codemard, and J. Nilsson, “High-power tunable single-frequency single-mode erbium: ytterbium codoped large-core fiber master-oscillator power amplifier source,” Opt. Lett. 30, 2997–2999 (2005).
[Crossref] [PubMed]

V. N. Philippov, J. K. Sahu, C. A. Codemard, W. A. Clarkson, J.-N. Jang, J. Nilsson, and G. N. Pearson, “All-fiber 1.15-mJ pulsed eye-safe optical source,” Proc. SPIE 5335, 1 (2004).
[Crossref]

Desmoulins, S.

J. Minelly, F. Di Teodoro, M. Savage-Leuchs, D. Alterman, S. Desmoulins, C. Brooks, and E Eisenberg, “High peak power and high energy fiber amplifiers,” Proc. SPIE 6453, 645302-1(2007).
[Crossref]

S. Desmoulins and F. Di Teodoro, “Watt-level, high-repetition-rate, mid-infrared pulses generated by wavelength conversion of an eye-safe fiber source,” Opt. Lett. 32, 56–58 (2007).
[Crossref]

Desthieux, B.

B. Desthieux, R. I. Laming, and D. N. Payne, “111 kW (0.5 mJ) pulse amplification at 1.5 µm using a gated cascade of three erbium-doped fiber amplifiers,” Appl. Phys. Lett. 63, 586–588 (1993).
[Crossref]

Di Teodoro, F.

S. Desmoulins and F. Di Teodoro, “Watt-level, high-repetition-rate, mid-infrared pulses generated by wavelength conversion of an eye-safe fiber source,” Opt. Lett. 32, 56–58 (2007).
[Crossref]

J. Minelly, F. Di Teodoro, M. Savage-Leuchs, D. Alterman, S. Desmoulins, C. Brooks, and E Eisenberg, “High peak power and high energy fiber amplifiers,” Proc. SPIE 6453, 645302-1(2007).
[Crossref]

C. D. Brooks and F. Di Teodoro, “Multi-megawatt peak-power, single-transverse-mode operation of a 100µm core diameter, Yb-doped rod-like photonic crystal fiber amplifier,” Appl. Phys. Lett. 89, 111119–111122 (2006).
[Crossref]

C. D. Brooks and F. Di Teodoro, “1-mJ energy, 1-MW peak-power, 10-W average-power, spectrally narrow, diffraction-limited pulses from a photonic-crystal fiber amplifier,” Opt. Express 13, 8999–9002 (2005), http://www.opticsinfobase.org/abstract.cfm?URI=oe-13-22-8999.
[Crossref] [PubMed]

F. Di Teodoro, M. Savage-Leuchs, and M. Norsen, “High-power pulsed fiber source at 1567nm,” Electron. Lett. 40, 1525–1526 (2004).
[Crossref]

Dickinson, B. C.

B. C. Dickinson, S. D. Jackson, and T. A. King, “10mJ total output from a gain-switched Tm-doped fiber laser,” Opt. Commun. 182, 199–203 (2000).
[Crossref]

DiGiovanni, D.

Dong, L.

Eisenberg, E

J. Minelly, F. Di Teodoro, M. Savage-Leuchs, D. Alterman, S. Desmoulins, C. Brooks, and E Eisenberg, “High peak power and high energy fiber amplifiers,” Proc. SPIE 6453, 645302-1(2007).
[Crossref]

Eisenberg, E.

M. Savage-Leuchs, E. Eisenberg, A. Liu, J. Henrie, M. Bowers, and A. J. W. Brown, “High pulse energy extraction with high peak power from short-pulse, eye-safe all-fiber laser system,” Proc. SPIE 6102, 610207 (2006).
[Crossref]

Farroni, J.

W. E. Torruellas, Y. Chen, B. McIntosh, J. Farroni, K. Tankala, S. Webster, D. J. Hagan, and M. J. Soileau, “High peak power ytterbium doped fiber amplifiers,” Proc. SPIE 6102, 61020N (2006).
[Crossref]

Farrow, R. L.

R. L. Farrow, D. A. V. Kliner, P. E. Schrader, A. A. Hoops, S. W. Moore, G. R. Hadley, and R. L. Schmitt, “High-peak-power (>1.2MW) pulsed fiber amplifier,” Proc. SPIE 6102, 61020L (2006).
[Crossref]

Galvanauskas, A.

Gatchell, P.

Hadley, G. R.

R. L. Farrow, D. A. V. Kliner, P. E. Schrader, A. A. Hoops, S. W. Moore, G. R. Hadley, and R. L. Schmitt, “High-peak-power (>1.2MW) pulsed fiber amplifier,” Proc. SPIE 6102, 61020L (2006).
[Crossref]

Hagan, D. J.

W. E. Torruellas, Y. Chen, B. McIntosh, J. Farroni, K. Tankala, S. Webster, D. J. Hagan, and M. J. Soileau, “High peak power ytterbium doped fiber amplifiers,” Proc. SPIE 6102, 61020N (2006).
[Crossref]

Headley, C.

Henrie, J.

M. Savage-Leuchs, E. Eisenberg, A. Liu, J. Henrie, M. Bowers, and A. J. W. Brown, “High pulse energy extraction with high peak power from short-pulse, eye-safe all-fiber laser system,” Proc. SPIE 6102, 610207 (2006).
[Crossref]

Hoops, A. A.

R. L. Farrow, D. A. V. Kliner, P. E. Schrader, A. A. Hoops, S. W. Moore, G. R. Hadley, and R. L. Schmitt, “High-peak-power (>1.2MW) pulsed fiber amplifier,” Proc. SPIE 6102, 61020L (2006).
[Crossref]

Jackson, S. D.

B. C. Dickinson, S. D. Jackson, and T. A. King, “10mJ total output from a gain-switched Tm-doped fiber laser,” Opt. Commun. 182, 199–203 (2000).
[Crossref]

Jang, J.-N.

V. N. Philippov, J. K. Sahu, C. A. Codemard, W. A. Clarkson, J.-N. Jang, J. Nilsson, and G. N. Pearson, “All-fiber 1.15-mJ pulsed eye-safe optical source,” Proc. SPIE 5335, 1 (2004).
[Crossref]

Jasapara, J.C.

Jeong, Y.

Ju, Y. -L.

King, T. A.

B. C. Dickinson, S. D. Jackson, and T. A. King, “10mJ total output from a gain-switched Tm-doped fiber laser,” Opt. Commun. 182, 199–203 (2000).
[Crossref]

Kliner, D. A. V.

R. L. Farrow, D. A. V. Kliner, P. E. Schrader, A. A. Hoops, S. W. Moore, G. R. Hadley, and R. L. Schmitt, “High-peak-power (>1.2MW) pulsed fiber amplifier,” Proc. SPIE 6102, 61020L (2006).
[Crossref]

Laming, R. I.

B. Desthieux, R. I. Laming, and D. N. Payne, “111 kW (0.5 mJ) pulse amplification at 1.5 µm using a gated cascade of three erbium-doped fiber amplifiers,” Appl. Phys. Lett. 63, 586–588 (1993).
[Crossref]

Liu, A.

M. Savage-Leuchs, E. Eisenberg, A. Liu, J. Henrie, M. Bowers, and A. J. W. Brown, “High pulse energy extraction with high peak power from short-pulse, eye-safe all-fiber laser system,” Proc. SPIE 6102, 610207 (2006).
[Crossref]

Mamidipudi, P.

McIntosh, B.

W. E. Torruellas, Y. Chen, B. McIntosh, J. Farroni, K. Tankala, S. Webster, D. J. Hagan, and M. J. Soileau, “High peak power ytterbium doped fiber amplifiers,” Proc. SPIE 6102, 61020N (2006).
[Crossref]

Minelly, J.

J. Minelly, F. Di Teodoro, M. Savage-Leuchs, D. Alterman, S. Desmoulins, C. Brooks, and E Eisenberg, “High peak power and high energy fiber amplifiers,” Proc. SPIE 6453, 645302-1(2007).
[Crossref]

Moore, S. W.

R. L. Farrow, D. A. V. Kliner, P. E. Schrader, A. A. Hoops, S. W. Moore, G. R. Hadley, and R. L. Schmitt, “High-peak-power (>1.2MW) pulsed fiber amplifier,” Proc. SPIE 6102, 61020L (2006).
[Crossref]

Nicholson, J. W.

Nilsson, J.

Y. Jeong, J. K. Sahu, D. B. S. Soh, C. A. Codemard, and J. Nilsson, “High-power tunable single-frequency single-mode erbium: ytterbium codoped large-core fiber master-oscillator power amplifier source,” Opt. Lett. 30, 2997–2999 (2005).
[Crossref] [PubMed]

V. N. Philippov, J. K. Sahu, C. A. Codemard, W. A. Clarkson, J.-N. Jang, J. Nilsson, and G. N. Pearson, “All-fiber 1.15-mJ pulsed eye-safe optical source,” Proc. SPIE 5335, 1 (2004).
[Crossref]

Norsen, M.

F. Di Teodoro, M. Savage-Leuchs, and M. Norsen, “High-power pulsed fiber source at 1567nm,” Electron. Lett. 40, 1525–1526 (2004).
[Crossref]

Payne, D. N.

B. Desthieux, R. I. Laming, and D. N. Payne, “111 kW (0.5 mJ) pulse amplification at 1.5 µm using a gated cascade of three erbium-doped fiber amplifiers,” Appl. Phys. Lett. 63, 586–588 (1993).
[Crossref]

Pearson, G. N.

V. N. Philippov, J. K. Sahu, C. A. Codemard, W. A. Clarkson, J.-N. Jang, J. Nilsson, and G. N. Pearson, “All-fiber 1.15-mJ pulsed eye-safe optical source,” Proc. SPIE 5335, 1 (2004).
[Crossref]

Penty, R. V.

Philippov, V. N.

V. N. Philippov, J. K. Sahu, C. A. Codemard, W. A. Clarkson, J.-N. Jang, J. Nilsson, and G. N. Pearson, “All-fiber 1.15-mJ pulsed eye-safe optical source,” Proc. SPIE 5335, 1 (2004).
[Crossref]

Richardson, D. J.

Sahu, J. K.

Y. Jeong, J. K. Sahu, D. B. S. Soh, C. A. Codemard, and J. Nilsson, “High-power tunable single-frequency single-mode erbium: ytterbium codoped large-core fiber master-oscillator power amplifier source,” Opt. Lett. 30, 2997–2999 (2005).
[Crossref] [PubMed]

V. N. Philippov, J. K. Sahu, C. A. Codemard, W. A. Clarkson, J.-N. Jang, J. Nilsson, and G. N. Pearson, “All-fiber 1.15-mJ pulsed eye-safe optical source,” Proc. SPIE 5335, 1 (2004).
[Crossref]

Savage-Leuchs, M.

J. Minelly, F. Di Teodoro, M. Savage-Leuchs, D. Alterman, S. Desmoulins, C. Brooks, and E Eisenberg, “High peak power and high energy fiber amplifiers,” Proc. SPIE 6453, 645302-1(2007).
[Crossref]

M. Savage-Leuchs, E. Eisenberg, A. Liu, J. Henrie, M. Bowers, and A. J. W. Brown, “High pulse energy extraction with high peak power from short-pulse, eye-safe all-fiber laser system,” Proc. SPIE 6102, 610207 (2006).
[Crossref]

F. Di Teodoro, M. Savage-Leuchs, and M. Norsen, “High-power pulsed fiber source at 1567nm,” Electron. Lett. 40, 1525–1526 (2004).
[Crossref]

Schmitt, R. L.

R. L. Farrow, D. A. V. Kliner, P. E. Schrader, A. A. Hoops, S. W. Moore, G. R. Hadley, and R. L. Schmitt, “High-peak-power (>1.2MW) pulsed fiber amplifier,” Proc. SPIE 6102, 61020L (2006).
[Crossref]

Schrader, P. E.

R. L. Farrow, D. A. V. Kliner, P. E. Schrader, A. A. Hoops, S. W. Moore, G. R. Hadley, and R. L. Schmitt, “High-peak-power (>1.2MW) pulsed fiber amplifier,” Proc. SPIE 6102, 61020L (2006).
[Crossref]

Soh, D. B. S.

Soileau, M. J.

W. E. Torruellas, Y. Chen, B. McIntosh, J. Farroni, K. Tankala, S. Webster, D. J. Hagan, and M. J. Soileau, “High peak power ytterbium doped fiber amplifiers,” Proc. SPIE 6102, 61020N (2006).
[Crossref]

Tankala, K.

W. E. Torruellas, Y. Chen, B. McIntosh, J. Farroni, K. Tankala, S. Webster, D. J. Hagan, and M. J. Soileau, “High peak power ytterbium doped fiber amplifiers,” Proc. SPIE 6102, 61020N (2006).
[Crossref]

Taverner, D.

Torruellas, W. E.

W. E. Torruellas, Y. Chen, B. McIntosh, J. Farroni, K. Tankala, S. Webster, D. J. Hagan, and M. J. Soileau, “High peak power ytterbium doped fiber amplifiers,” Proc. SPIE 6102, 61020N (2006).
[Crossref]

Wang, Y. -Z.

Webster, S.

W. E. Torruellas, Y. Chen, B. McIntosh, J. Farroni, K. Tankala, S. Webster, D. J. Hagan, and M. J. Soileau, “High peak power ytterbium doped fiber amplifiers,” Proc. SPIE 6102, 61020N (2006).
[Crossref]

Williams, K.

Yablon, A. D.

Yao, B. -Q.

Zhang, Y.

Appl. Phys. Lett. (2)

C. D. Brooks and F. Di Teodoro, “Multi-megawatt peak-power, single-transverse-mode operation of a 100µm core diameter, Yb-doped rod-like photonic crystal fiber amplifier,” Appl. Phys. Lett. 89, 111119–111122 (2006).
[Crossref]

B. Desthieux, R. I. Laming, and D. N. Payne, “111 kW (0.5 mJ) pulse amplification at 1.5 µm using a gated cascade of three erbium-doped fiber amplifiers,” Appl. Phys. Lett. 63, 586–588 (1993).
[Crossref]

Electron. Lett. (1)

F. Di Teodoro, M. Savage-Leuchs, and M. Norsen, “High-power pulsed fiber source at 1567nm,” Electron. Lett. 40, 1525–1526 (2004).
[Crossref]

Opt. Commun. (1)

B. C. Dickinson, S. D. Jackson, and T. A. King, “10mJ total output from a gain-switched Tm-doped fiber laser,” Opt. Commun. 182, 199–203 (2000).
[Crossref]

Opt. Express (2)

Opt. Lett. (5)

Proc. SPIE (5)

J. Minelly, F. Di Teodoro, M. Savage-Leuchs, D. Alterman, S. Desmoulins, C. Brooks, and E Eisenberg, “High peak power and high energy fiber amplifiers,” Proc. SPIE 6453, 645302-1(2007).
[Crossref]

R. L. Farrow, D. A. V. Kliner, P. E. Schrader, A. A. Hoops, S. W. Moore, G. R. Hadley, and R. L. Schmitt, “High-peak-power (>1.2MW) pulsed fiber amplifier,” Proc. SPIE 6102, 61020L (2006).
[Crossref]

W. E. Torruellas, Y. Chen, B. McIntosh, J. Farroni, K. Tankala, S. Webster, D. J. Hagan, and M. J. Soileau, “High peak power ytterbium doped fiber amplifiers,” Proc. SPIE 6102, 61020N (2006).
[Crossref]

V. N. Philippov, J. K. Sahu, C. A. Codemard, W. A. Clarkson, J.-N. Jang, J. Nilsson, and G. N. Pearson, “All-fiber 1.15-mJ pulsed eye-safe optical source,” Proc. SPIE 5335, 1 (2004).
[Crossref]

M. Savage-Leuchs, E. Eisenberg, A. Liu, J. Henrie, M. Bowers, and A. J. W. Brown, “High pulse energy extraction with high peak power from short-pulse, eye-safe all-fiber laser system,” Proc. SPIE 6102, 610207 (2006).
[Crossref]

Other (1)

G. P. Agrawal, Nonlinear Fiber Optics (Academic Press, 2001, Third Edition), Chap. 4.1.4.

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Figures (7)

Fig. 1.
Fig. 1. Schematic view of the eye-safe fiber-based source architecture described in this article. FBG: Fiber Bragg grating; IP: In-line (fiber-coupled) polarizer; PD: ~980nm pump diode; EDF: Erbium doped fiber; IOI: In-line optical isolator; IBPF: In-line band-pass filter; SOA: Fiber coupled semiconductor optical amplifier; EYDF: Er/Yb-co-doped fiber; DM: Dichroic mirror; BPF: Bulk band-pass filter; OI: Bulk optical isolator; LC-EDF: Large-core Er-doped fiber.

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Fig. 2.
Fig. 2. Pulse energy (directly measured with a pyroelectric joulemeter) and corresponding average power (calculated as pulse energy × PRF) emitted by the 65µm core-diameter Erdoped fiber amplifier as a function of pump power incident on its output facet. Blue dots: data; Red line: linear fit.

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Fig. 3.
Fig. 3. Pulse energy (blue) and corresponding average power (red) emitted by the 65µm corediameter Er-doped fiber amplifier as a function of pulse repetition frequency.

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Fig. 4.
Fig. 4. (a) Temporal profiles of the pulses emitted by the Er-doped power fiber amplifier at maximum pulse energy for three distinct PRF values (7.5, 10, and 20 kHz). The vertical scale has been calibrated in power units by equating the integral under the recorded profiles to the directly measured pulse energy. (b) Maximum peak power vs. PRF.

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Fig. 5.
Fig. 5. Peak-normalized spectrum (logarithmic scale) of the Er-doped power fiber amplifier output, recorded at PRF=7.5kHz, maximum energy (1.4 mJ). Inset: Amplified output (black) and seeder (red) spectrum (linear scale) plotted vs. distance from the pulses central wavelength (λ0).

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Fig. 6.
Fig. 6. Spectral linewidth vs. pulse energy emitted by the Er-doped power fiber amplifier (PRF = 10kHz). Three types of linewidth are considered, each defined by the fraction of the total pulse energy contained in it: 90% (black solid circles), 80% (red hollow circles), and 70% (green solid triangles).

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Fig. 7.
Fig. 7. Solid circles and hollow squares: Beam radius measured along perpendicular directions (Rx and Ry, respectively) as a function of distance from the waist location. Solid lines: Hyperbolic fits to the data.

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