Abstract

We demonstrate a high peak power, Q-switched pulsed, intracavity coherently combined fiber laser system. The system is based on two Yb-doped, rod-type, photonic crystal fibers which are passively phase-locked and combined into the single output beam in a power oscillator configuration. Experimental evidence indicate that this oscillator system provides record high peak power of ∼ 0.7 MW with pulse duration of ∼ 10 ns at 1 kHz repetition rate. The measured beam quality shows near-diffraction-limited operation of the coherently combined system.

© 2014 Optical Society of America

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2012 (1)

J. Limpert, F. Stutzki, F. Jansen, H.-J. Otto, T. Eidam, C. Jauregui, A. Tünnermann, “Yb-doped large-pitch fibers: effective single-mode operation based on higher-order mode delocalization,” Light: Sci. App. 1, 1–5 (2012).
[CrossRef]

2011 (3)

2010 (1)

2009 (1)

A. A. Ishaaya, N. Davidson, A. A. Friesem, “Passive laser beam combining with intracavity interferometric combiners,” IEEE J. Sel. Top. Quantum Electron. 15, 301–311 (2009).
[CrossRef]

2008 (1)

K. Duan, J. Wang, J. Li, Y. Wang, Z. Zhao, W. Zhao, “Experimental study of phase-locking of two photonic crystal fiber lasers,” Opt. Commun. 281, 2557–2560 (2008).
[CrossRef]

2005 (2)

D. Kouznetsov, J.-F. Bisson, A. Shirakawa, K.-I. Ueda, “Limits of coherent addition of lasers: Simple estimate,” Opt. Rev. 12, 445–447 (2005).
[CrossRef]

T. Fan, “Laser beam combining for high-power, high-radiance sources,” IEEE J. Sel. Top. Quantum Electron. 11, 567–577 (2005).
[CrossRef]

2004 (2)

A. Ishaaya, N. Davidson, L. Shimshi, A. Friesem, “Intracavity coherent addition of gaussian beam distributions using a planar interferometric coupler,” Appl. Phys. Lett. 85, 2187–2189 (2004).
[CrossRef]

D. Sabourdy, A. Desfarges-Berthelemot, V. Kermene, A. Barthélémy, “Coherent combining of q-switched fibre lasers,” Electron. Lett. 40, 1254–1255 (2004).
[CrossRef]

2003 (1)

2000 (1)

1999 (1)

1987 (1)

Barthélémy, A.

J. Guillot, A. Desfarges-Berthelemot, V. Kermène, A. Barthélémy, “Experimental study of cophasing dynamics in passive coherent combining of fiber lasers,” Opt. Lett. 36, 2907–2909 (2011).
[CrossRef] [PubMed]

D. Sabourdy, A. Desfarges-Berthelemot, V. Kermene, A. Barthélémy, “Coherent combining of q-switched fibre lasers,” Electron. Lett. 40, 1254–1255 (2004).
[CrossRef]

Bellanger, C.

Bisson, J.-F.

D. Kouznetsov, J.-F. Bisson, A. Shirakawa, K.-I. Ueda, “Limits of coherent addition of lasers: Simple estimate,” Opt. Rev. 12, 445–447 (2005).
[CrossRef]

Bourderionnet, J.

Bouwmans, G.

Brignon, A.

Bromage, J.

Clarkson, W.

Davidson, N.

A. A. Ishaaya, N. Davidson, A. A. Friesem, “Passive laser beam combining with intracavity interferometric combiners,” IEEE J. Sel. Top. Quantum Electron. 15, 301–311 (2009).
[CrossRef]

A. Ishaaya, N. Davidson, L. Shimshi, A. Friesem, “Intracavity coherent addition of gaussian beam distributions using a planar interferometric coupler,” Appl. Phys. Lett. 85, 2187–2189 (2004).
[CrossRef]

Desfarges-Berthelemot, A.

J. Guillot, A. Desfarges-Berthelemot, V. Kermène, A. Barthélémy, “Experimental study of cophasing dynamics in passive coherent combining of fiber lasers,” Opt. Lett. 36, 2907–2909 (2011).
[CrossRef] [PubMed]

D. Sabourdy, A. Desfarges-Berthelemot, V. Kermene, A. Barthélémy, “Coherent combining of q-switched fibre lasers,” Electron. Lett. 40, 1254–1255 (2004).
[CrossRef]

Dorrer, C.

Duan, K.

K. Duan, J. Wang, J. Li, Y. Wang, Z. Zhao, W. Zhao, “Experimental study of phase-locking of two photonic crystal fiber lasers,” Opt. Commun. 281, 2557–2560 (2008).
[CrossRef]

Eidam, T.

J. Limpert, F. Stutzki, F. Jansen, H.-J. Otto, T. Eidam, C. Jauregui, A. Tünnermann, “Yb-doped large-pitch fibers: effective single-mode operation based on higher-order mode delocalization,” Light: Sci. App. 1, 1–5 (2012).
[CrossRef]

Fan, T.

T. Fan, “Laser beam combining for high-power, high-radiance sources,” IEEE J. Sel. Top. Quantum Electron. 11, 567–577 (2005).
[CrossRef]

Fini, J. M.

Friesem, A.

A. Ishaaya, N. Davidson, L. Shimshi, A. Friesem, “Intracavity coherent addition of gaussian beam distributions using a planar interferometric coupler,” Appl. Phys. Lett. 85, 2187–2189 (2004).
[CrossRef]

Friesem, A. A.

A. A. Ishaaya, N. Davidson, A. A. Friesem, “Passive laser beam combining with intracavity interferometric combiners,” IEEE J. Sel. Top. Quantum Electron. 15, 301–311 (2009).
[CrossRef]

Galvanauskas, A.

I. Hu, X. Ma, A. Galvanauskas et al., “Single mode 9.1 mJ and 10ns pulses from 55μm core yb-doped CCC fiber mopa,” in “CLEO: Science and Innovations,” (OSA, 2013), pp. CTu1K–5.

Goldberg, L.

Guillot, J.

Hernandez-Cordero, J.

Hu, I.

I. Hu, X. Ma, A. Galvanauskas et al., “Single mode 9.1 mJ and 10ns pulses from 55μm core yb-doped CCC fiber mopa,” in “CLEO: Science and Innovations,” (OSA, 2013), pp. CTu1K–5.

Ishaaya, A.

A. Ishaaya, N. Davidson, L. Shimshi, A. Friesem, “Intracavity coherent addition of gaussian beam distributions using a planar interferometric coupler,” Appl. Phys. Lett. 85, 2187–2189 (2004).
[CrossRef]

Ishaaya, A. A.

A. A. Ishaaya, N. Davidson, A. A. Friesem, “Passive laser beam combining with intracavity interferometric combiners,” IEEE J. Sel. Top. Quantum Electron. 15, 301–311 (2009).
[CrossRef]

B. Shulga, A. A. Ishaaya, “Imposing temporal and frequency characteristics in a system of coherently combined high peak power photonic crystal fiber lasers,” in “CLEO/EUROPE - IQEC,” (OSA, 2013).

Jansen, F.

J. Limpert, F. Stutzki, F. Jansen, H.-J. Otto, T. Eidam, C. Jauregui, A. Tünnermann, “Yb-doped large-pitch fibers: effective single-mode operation based on higher-order mode delocalization,” Light: Sci. App. 1, 1–5 (2012).
[CrossRef]

Jauregui, C.

J. Limpert, F. Stutzki, F. Jansen, H.-J. Otto, T. Eidam, C. Jauregui, A. Tünnermann, “Yb-doped large-pitch fibers: effective single-mode operation based on higher-order mode delocalization,” Light: Sci. App. 1, 1–5 (2012).
[CrossRef]

Kermene, V.

D. Sabourdy, A. Desfarges-Berthelemot, V. Kermene, A. Barthélémy, “Coherent combining of q-switched fibre lasers,” Electron. Lett. 40, 1254–1255 (2004).
[CrossRef]

Kermène, V.

Kliner, D. A.

Knight, J.

Koplow, J. P.

Kouznetsov, D.

D. Kouznetsov, J.-F. Bisson, A. Shirakawa, K.-I. Ueda, “Limits of coherent addition of lasers: Simple estimate,” Opt. Rev. 12, 445–447 (2005).
[CrossRef]

Kozlov, V.

Leger, J. R.

Li, J.

K. Duan, J. Wang, J. Li, Y. Wang, Z. Zhao, W. Zhao, “Experimental study of phase-locking of two photonic crystal fiber lasers,” Opt. Commun. 281, 2557–2560 (2008).
[CrossRef]

Limpert, J.

J. Limpert, F. Stutzki, F. Jansen, H.-J. Otto, T. Eidam, C. Jauregui, A. Tünnermann, “Yb-doped large-pitch fibers: effective single-mode operation based on higher-order mode delocalization,” Light: Sci. App. 1, 1–5 (2012).
[CrossRef]

Ma, X.

I. Hu, X. Ma, A. Galvanauskas et al., “Single mode 9.1 mJ and 10ns pulses from 55μm core yb-doped CCC fiber mopa,” in “CLEO: Science and Innovations,” (OSA, 2013), pp. CTu1K–5.

Morse, T.

Nilsson, J.

Otto, H.-J.

J. Limpert, F. Stutzki, F. Jansen, H.-J. Otto, T. Eidam, C. Jauregui, A. Tünnermann, “Yb-doped large-pitch fibers: effective single-mode operation based on higher-order mode delocalization,” Light: Sci. App. 1, 1–5 (2012).
[CrossRef]

Percival, R.

Primot, J.

Richardson, D.

Russell, P.

Sabourdy, D.

D. Sabourdy, A. Desfarges-Berthelemot, V. Kermene, A. Barthélémy, “Coherent combining of q-switched fibre lasers,” Electron. Lett. 40, 1254–1255 (2004).
[CrossRef]

Shimshi, L.

A. Ishaaya, N. Davidson, L. Shimshi, A. Friesem, “Intracavity coherent addition of gaussian beam distributions using a planar interferometric coupler,” Appl. Phys. Lett. 85, 2187–2189 (2004).
[CrossRef]

Shirakawa, A.

D. Kouznetsov, J.-F. Bisson, A. Shirakawa, K.-I. Ueda, “Limits of coherent addition of lasers: Simple estimate,” Opt. Rev. 12, 445–447 (2005).
[CrossRef]

Shulga, B.

B. Shulga, A. A. Ishaaya, “Imposing temporal and frequency characteristics in a system of coherently combined high peak power photonic crystal fiber lasers,” in “CLEO/EUROPE - IQEC,” (OSA, 2013).

Stutzki, F.

J. Limpert, F. Stutzki, F. Jansen, H.-J. Otto, T. Eidam, C. Jauregui, A. Tünnermann, “Yb-doped large-pitch fibers: effective single-mode operation based on higher-order mode delocalization,” Light: Sci. App. 1, 1–5 (2012).
[CrossRef]

Swanson, G. J.

Tünnermann, A.

J. Limpert, F. Stutzki, F. Jansen, H.-J. Otto, T. Eidam, C. Jauregui, A. Tünnermann, “Yb-doped large-pitch fibers: effective single-mode operation based on higher-order mode delocalization,” Light: Sci. App. 1, 1–5 (2012).
[CrossRef]

Ueda, K.-I.

D. Kouznetsov, J.-F. Bisson, A. Shirakawa, K.-I. Ueda, “Limits of coherent addition of lasers: Simple estimate,” Opt. Rev. 12, 445–447 (2005).
[CrossRef]

Veldkamp, W. B.

Wadsworth, W.

Wang, J.

K. Duan, J. Wang, J. Li, Y. Wang, Z. Zhao, W. Zhao, “Experimental study of phase-locking of two photonic crystal fiber lasers,” Opt. Commun. 281, 2557–2560 (2008).
[CrossRef]

Wang, Y.

K. Duan, J. Wang, J. Li, Y. Wang, Z. Zhao, W. Zhao, “Experimental study of phase-locking of two photonic crystal fiber lasers,” Opt. Commun. 281, 2557–2560 (2008).
[CrossRef]

Zhao, W.

K. Duan, J. Wang, J. Li, Y. Wang, Z. Zhao, W. Zhao, “Experimental study of phase-locking of two photonic crystal fiber lasers,” Opt. Commun. 281, 2557–2560 (2008).
[CrossRef]

Zhao, Z.

K. Duan, J. Wang, J. Li, Y. Wang, Z. Zhao, W. Zhao, “Experimental study of phase-locking of two photonic crystal fiber lasers,” Opt. Commun. 281, 2557–2560 (2008).
[CrossRef]

Zuegel, J. D.

Appl. Opt. (2)

Appl. Phys. Lett. (1)

A. Ishaaya, N. Davidson, L. Shimshi, A. Friesem, “Intracavity coherent addition of gaussian beam distributions using a planar interferometric coupler,” Appl. Phys. Lett. 85, 2187–2189 (2004).
[CrossRef]

Electron. Lett. (1)

D. Sabourdy, A. Desfarges-Berthelemot, V. Kermene, A. Barthélémy, “Coherent combining of q-switched fibre lasers,” Electron. Lett. 40, 1254–1255 (2004).
[CrossRef]

IEEE J. Sel. Top. Quantum Electron. (2)

A. A. Ishaaya, N. Davidson, A. A. Friesem, “Passive laser beam combining with intracavity interferometric combiners,” IEEE J. Sel. Top. Quantum Electron. 15, 301–311 (2009).
[CrossRef]

T. Fan, “Laser beam combining for high-power, high-radiance sources,” IEEE J. Sel. Top. Quantum Electron. 11, 567–577 (2005).
[CrossRef]

J. Opt. Soc. Am. B (1)

Light: Sci. App. (1)

J. Limpert, F. Stutzki, F. Jansen, H.-J. Otto, T. Eidam, C. Jauregui, A. Tünnermann, “Yb-doped large-pitch fibers: effective single-mode operation based on higher-order mode delocalization,” Light: Sci. App. 1, 1–5 (2012).
[CrossRef]

Opt. Commun. (1)

K. Duan, J. Wang, J. Li, Y. Wang, Z. Zhao, W. Zhao, “Experimental study of phase-locking of two photonic crystal fiber lasers,” Opt. Commun. 281, 2557–2560 (2008).
[CrossRef]

Opt. Express (2)

Opt. Lett. (3)

Opt. Rev. (1)

D. Kouznetsov, J.-F. Bisson, A. Shirakawa, K.-I. Ueda, “Limits of coherent addition of lasers: Simple estimate,” Opt. Rev. 12, 445–447 (2005).
[CrossRef]

Other (2)

I. Hu, X. Ma, A. Galvanauskas et al., “Single mode 9.1 mJ and 10ns pulses from 55μm core yb-doped CCC fiber mopa,” in “CLEO: Science and Innovations,” (OSA, 2013), pp. CTu1K–5.

B. Shulga, A. A. Ishaaya, “Imposing temporal and frequency characteristics in a system of coherently combined high peak power photonic crystal fiber lasers,” in “CLEO/EUROPE - IQEC,” (OSA, 2013).

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Figures (5)

Fig. 1
Fig. 1

Schematic configuration of the Q-switched intracavity coherently combined fiber laser.

Fig. 2
Fig. 2

Schematic configuration of the single fiber laser channel setup. The same setup is used for both channels.

Fig. 3
Fig. 3

Laser output power as function of the single channel launched pump power, as measured for the upper and lower channels operated separately (blue triangles and green down triangles, respectively) and for the coherently combined system (black squares). Purple circles represent the combining efficiency as function of the launched pump power (values shown on the right y-axis). The dotted lines indicate a linear fit between the measured values. Panel (a) shows the CW mode; panels (b–d) show pulsed cases with repetition rates of 100 kHz (b), 10 kHz (c), and 1 kHz (d).

Fig. 4
Fig. 4

Measured peak power (green dots) and pulse duration (blue squares) as function of the single channel launched pump power from the coherently combined laser system at 1 kHz repetition rate (lines represent connections between the points).

Fig. 5
Fig. 5

Measured intensity distributions of the output laser beam. (a, b) show the near- and far-field, respectively, of a single laser channel operated separately. (c, d) show the near-and far-field, respectively, of the coherently combined laser configuration.

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