Abstract

We demonstrate a simplified approach toward active polarization control in coherently combined laser architectures. By leveraging optical phase dithers applied by a phase controller, polarization error signals are generated for an entire laser array from a single beam sample of the combined output, enabling closed-loop polarization locking of non-polarization-maintaining fibers. The concept is shown to be compatible with both hill-climbing and synchronous multidither phase control methods. Simultaneous phase locking and polarization locking was demonstrated for a five-fiber array with >99% phasing efficiency and >20dB polarization extinction ratio.

© 2012 Optical Society of America

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References

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  1. C. X. Yu and T. Y. Fan, “Beam combining,” in High Power Laser Handbook, H. Injeyan and G. D. Goodno, eds. (McGraw-Hill, 2011), pp. 533–571.
  2. G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, and M. Wickham, IEEE J. Sel. Top. Quantum Electron. 13, 460 (2007).
    [CrossRef]
  3. G. D. Goodno, S. J. McNaught, J. E. Rothenberg, T. McComb, P. A. Thielen, M. G. Wickham, and M. E. Weber, Opt. Lett. 35, 1542 (2010).
    [CrossRef]
  4. T. M. Shay, Opt. Express 14, 12188 (2006).
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  7. G. D. Goodno, and S. B. Weiss, Opt. Express 20, 14945 (2012).
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  8. S. B. Weiss, M. E. Weber, and G. D. Goodno, Opt. Lett. 37, 455 (2012).
    [CrossRef]
  9. R. Noé, H. Heidrich, and D. Hoffmann, J. Lightwave Technol. 6, 1199 (1988).
    [CrossRef]
  10. E. C. Cheung, J. G. Ho, G. D. Goodno, R. R. Rice, J. Rothenberg, P. Thielen, M. Weber, and M. Wickham, Opt. Lett. 33, 354 (2008).
    [CrossRef]
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  12. F. E. Churchill, G. W. Ogar, and B. J. Thompson, IEEE Trans. Aerosp. Electron. Syst. AES-17, 131 (1981).
    [CrossRef]
  13. B. N. Pulford, “LOCSET phase locking: operation, diagnostics, and applications,” Ph.D. dissertation (University of New Mexico, 2011).

2012 (2)

2010 (2)

2008 (1)

2007 (1)

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, and M. Wickham, IEEE J. Sel. Top. Quantum Electron. 13, 460 (2007).
[CrossRef]

2006 (1)

1998 (1)

1988 (1)

R. Noé, H. Heidrich, and D. Hoffmann, J. Lightwave Technol. 6, 1199 (1988).
[CrossRef]

1987 (1)

1981 (1)

F. E. Churchill, G. W. Ogar, and B. J. Thompson, IEEE Trans. Aerosp. Electron. Syst. AES-17, 131 (1981).
[CrossRef]

Anderegg, J.

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, and M. Wickham, IEEE J. Sel. Top. Quantum Electron. 13, 460 (2007).
[CrossRef]

Asman, C. P.

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, and M. Wickham, IEEE J. Sel. Top. Quantum Electron. 13, 460 (2007).
[CrossRef]

Brosnan, S.

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, and M. Wickham, IEEE J. Sel. Top. Quantum Electron. 13, 460 (2007).
[CrossRef]

Cheung, E. C.

E. C. Cheung, J. G. Ho, G. D. Goodno, R. R. Rice, J. Rothenberg, P. Thielen, M. Weber, and M. Wickham, Opt. Lett. 33, 354 (2008).
[CrossRef]

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, and M. Wickham, IEEE J. Sel. Top. Quantum Electron. 13, 460 (2007).
[CrossRef]

Cheung, N. K.

Churchill, F. E.

F. E. Churchill, G. W. Ogar, and B. J. Thompson, IEEE Trans. Aerosp. Electron. Syst. AES-17, 131 (1981).
[CrossRef]

Curtis, L.

Fan, T. Y.

C. X. Yu and T. Y. Fan, “Beam combining,” in High Power Laser Handbook, H. Injeyan and G. D. Goodno, eds. (McGraw-Hill, 2011), pp. 533–571.

Goodno, G. D.

Hammons, D.

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, and M. Wickham, IEEE J. Sel. Top. Quantum Electron. 13, 460 (2007).
[CrossRef]

Heidrich, H.

R. Noé, H. Heidrich, and D. Hoffmann, J. Lightwave Technol. 6, 1199 (1988).
[CrossRef]

Ho, J. G.

Hoffmann, D.

R. Noé, H. Heidrich, and D. Hoffmann, J. Lightwave Technol. 6, 1199 (1988).
[CrossRef]

Injeyan, H.

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, and M. Wickham, IEEE J. Sel. Top. Quantum Electron. 13, 460 (2007).
[CrossRef]

Kazovsky, L. G.

Komine, H.

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, and M. Wickham, IEEE J. Sel. Top. Quantum Electron. 13, 460 (2007).
[CrossRef]

Long, W.

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, and M. Wickham, IEEE J. Sel. Top. Quantum Electron. 13, 460 (2007).
[CrossRef]

McClellan, M.

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, and M. Wickham, IEEE J. Sel. Top. Quantum Electron. 13, 460 (2007).
[CrossRef]

McComb, T.

McNaught, S. J.

G. D. Goodno, S. J. McNaught, J. E. Rothenberg, T. McComb, P. A. Thielen, M. G. Wickham, and M. E. Weber, Opt. Lett. 35, 1542 (2010).
[CrossRef]

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, and M. Wickham, IEEE J. Sel. Top. Quantum Electron. 13, 460 (2007).
[CrossRef]

Noé, R.

R. Noé, H. Heidrich, and D. Hoffmann, J. Lightwave Technol. 6, 1199 (1988).
[CrossRef]

Ogar, G. W.

F. E. Churchill, G. W. Ogar, and B. J. Thompson, IEEE Trans. Aerosp. Electron. Syst. AES-17, 131 (1981).
[CrossRef]

Pulford, B. N.

B. N. Pulford, “LOCSET phase locking: operation, diagnostics, and applications,” Ph.D. dissertation (University of New Mexico, 2011).

Redmond, S.

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, and M. Wickham, IEEE J. Sel. Top. Quantum Electron. 13, 460 (2007).
[CrossRef]

Rice, R. R.

Rothenberg, J.

Rothenberg, J. E.

Shay, T. M.

Shih, C. C.

Simpson, R.

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, and M. Wickham, IEEE J. Sel. Top. Quantum Electron. 13, 460 (2007).
[CrossRef]

Sivokon, V. P.

Sollee, J.

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, and M. Wickham, IEEE J. Sel. Top. Quantum Electron. 13, 460 (2007).
[CrossRef]

Thielen, P.

Thielen, P. A.

Thompson, B. J.

F. E. Churchill, G. W. Ogar, and B. J. Thompson, IEEE Trans. Aerosp. Electron. Syst. AES-17, 131 (1981).
[CrossRef]

Vorontsov, M. A.

Weber, M.

E. C. Cheung, J. G. Ho, G. D. Goodno, R. R. Rice, J. Rothenberg, P. Thielen, M. Weber, and M. Wickham, Opt. Lett. 33, 354 (2008).
[CrossRef]

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, and M. Wickham, IEEE J. Sel. Top. Quantum Electron. 13, 460 (2007).
[CrossRef]

Weber, M. E.

Weiss, S. B.

G. D. Goodno, and S. B. Weiss, Opt. Express 20, 14945 (2012).
[CrossRef]

S. B. Weiss, M. E. Weber, and G. D. Goodno, Opt. Lett. 37, 455 (2012).
[CrossRef]

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, and M. Wickham, IEEE J. Sel. Top. Quantum Electron. 13, 460 (2007).
[CrossRef]

Wickham, M.

E. C. Cheung, J. G. Ho, G. D. Goodno, R. R. Rice, J. Rothenberg, P. Thielen, M. Weber, and M. Wickham, Opt. Lett. 33, 354 (2008).
[CrossRef]

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, and M. Wickham, IEEE J. Sel. Top. Quantum Electron. 13, 460 (2007).
[CrossRef]

Wickham, M. G.

Young, W. C.

Yu, C. X.

C. X. Yu and T. Y. Fan, “Beam combining,” in High Power Laser Handbook, H. Injeyan and G. D. Goodno, eds. (McGraw-Hill, 2011), pp. 533–571.

Appl. Opt. (1)

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

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, and M. Wickham, IEEE J. Sel. Top. Quantum Electron. 13, 460 (2007).
[CrossRef]

IEEE Trans. Aerosp. Electron. Syst. (1)

F. E. Churchill, G. W. Ogar, and B. J. Thompson, IEEE Trans. Aerosp. Electron. Syst. AES-17, 131 (1981).
[CrossRef]

J. Lightwave Technol. (1)

R. Noé, H. Heidrich, and D. Hoffmann, J. Lightwave Technol. 6, 1199 (1988).
[CrossRef]

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

Opt. Express (3)

Opt. Lett. (3)

Other (2)

B. N. Pulford, “LOCSET phase locking: operation, diagnostics, and applications,” Ph.D. dissertation (University of New Mexico, 2011).

C. X. Yu and T. Y. Fan, “Beam combining,” in High Power Laser Handbook, H. Injeyan and G. D. Goodno, eds. (McGraw-Hill, 2011), pp. 533–571.

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Figures (3)

Fig. 1.
Fig. 1.

Schematic of active phase- and polarization-locking experiment with N = 5 fibers.

Fig. 2.
Fig. 2.

In-phase I ( t ) and in-quadrature Q ( t ) signals for N = 1 5 . The Q ( t ) signals were AC coupled and are offset for clarity to overlap with the associated I ( t ) signal. The quadrature amplitudes q 1 demodulated from Q ( t ) are also shown to be near-constant with N .

Fig. 3.
Fig. 3.

Five-beam CBC output power upon engagement of coherent phase and polarization controls.

Tables (1)

Tables Icon

Table 1. Loss Contributions for Five-Beam CBC Experiment

Equations (10)

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1 T T δ ϕ k ( t ) d t = 0 ,
1 T T δ ϕ j ( t ) δ ϕ k ( t ) d t = δ ϕ 2 δ j k .
E ( t ) = k A k e i ϕ k + i δ ϕ k ( t ) .
V ( t ) = | E ( t ) | 2 = j , k A j A k e i ( ϕ j ϕ k ) + i ( δ ϕ j ( t ) δ ϕ k ( t ) ) .
V ( t ) = j , k A j A k [ cos ( ϕ j ϕ k ) sin ( ϕ j ϕ k ) ( δ ϕ j ( t ) δ ϕ k ( t ) ) ] .
q k = 1 T T V ( t ) · δ ϕ k ( t ) / δ ϕ d t .
q k = 2 δ ϕ A k j A j sin ( ϕ k ϕ j ) .
I ( t ) = | A ref + E ( t ) | 2 ,
Q ( t ) = | A ref + i E ( t ) | 2 .
q k = 2 δ ϕ A k · [ A ref sin ( ϕ k ϕ ref + π / 2 ) + j = 1 N A j sin ( ϕ k ϕ j ) ] 2 δ ϕ A k A ref .

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