Abstract

A new technique for combining low-power laser beams has been demonstrated by use of semiconductor diode lasers. The technique, which is appropriate for any single-longitudinal-mode laser, is based on stimulated Brillouin scattering (SBS) in long multimode optical fibers. It produces a clean Gaussian-like beam that corresponds to the fundamental fiber mode, irrespective of the profile of the pump. Coherent as well as incoherent combining was demonstrated, and conversion slope efficiencies as high as 67% and 83% were shown to be achievable for the single-pass and ring-cavity SBS geometries, respectively.

© 1999 Optical Society of America

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References

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    [CrossRef]
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  10. T. Salvi, Logicon RDA, 2600 Yale Boulevard, S.E., Albuquerque, New Mexico 87119 (personal communication, 1999).

1990 (1)

1988 (1)

1986 (1)

1985 (1)

1982 (1)

D. Cotter, Electron. Lett. 18, 495 (1982).
[CrossRef]

Agrawal, G. P.

See, for example, G. P. Agrawal, Nonlinear Fiber Optics (Academic, New York, 1989), Chap. 9.

Bar-Joseph, I.

Bruesselbach, H.

H. Bruesselbach, in Conference on Lasers and Electro-Optics, Vol. 11 of 1993 OSA Technical Digest Series (Optical Society of America, Washington, D. C., 1993), p. 424.

Chomsky, D.

Cimolino, M. C.

Cotter, D.

D. Cotter, Electron. Lett. 18, 495 (1982).
[CrossRef]

Fotiadi, A. A.

E. A. Kuzin, M. P. Petrov, and A. A. Fotiadi, in Optical Phase Conjugation, M. Gower and D. Proch, eds. (Springer-Verlag, Berlin, 1994), pp. 74–96.

Frisem, A. A.

Giuliano, C. R.

Jackel, S.

Kuzin, E. A.

E. A. Kuzin, M. P. Petrov, and A. A. Fotiadi, in Optical Phase Conjugation, M. Gower and D. Proch, eds. (Springer-Verlag, Berlin, 1994), pp. 74–96.

Lightman, E.

Moyer, R. H.

Petrov, M. P.

E. A. Kuzin, M. P. Petrov, and A. A. Fotiadi, in Optical Phase Conjugation, M. Gower and D. Proch, eds. (Springer-Verlag, Berlin, 1994), pp. 74–96.

Pilipetsky, N. F.

B. Y. Zeldovich, N. F. Pilipetsky, and V. V. Shkunov, Principles of Phase Conjugation (Springer-Verlag, Berlin, 1985), p. 64.

Rockwell, D. A.

Salvi, T.

T. Salvi, Logicon RDA, 2600 Yale Boulevard, S.E., Albuquerque, New Mexico 87119 (personal communication, 1999).

Shkunov, V. V.

B. Y. Zeldovich, N. F. Pilipetsky, and V. V. Shkunov, Principles of Phase Conjugation (Springer-Verlag, Berlin, 1985), p. 64.

Sternklar, S.

Valley, M.

Waarts, R. G.

Zeldovich, B. Y.

B. Y. Zeldovich, N. F. Pilipetsky, and V. V. Shkunov, Principles of Phase Conjugation (Springer-Verlag, Berlin, 1985), p. 64.

Zigler, A.

Electron. Lett. (1)

D. Cotter, Electron. Lett. 18, 495 (1982).
[CrossRef]

J. Opt. Soc. Am. B (2)

Opt. Lett. (2)

Other (5)

E. A. Kuzin, M. P. Petrov, and A. A. Fotiadi, in Optical Phase Conjugation, M. Gower and D. Proch, eds. (Springer-Verlag, Berlin, 1994), pp. 74–96.

H. Bruesselbach, in Conference on Lasers and Electro-Optics, Vol. 11 of 1993 OSA Technical Digest Series (Optical Society of America, Washington, D. C., 1993), p. 424.

See, for example, G. P. Agrawal, Nonlinear Fiber Optics (Academic, New York, 1989), Chap. 9.

B. Y. Zeldovich, N. F. Pilipetsky, and V. V. Shkunov, Principles of Phase Conjugation (Springer-Verlag, Berlin, 1985), p. 64.

T. Salvi, Logicon RDA, 2600 Yale Boulevard, S.E., Albuquerque, New Mexico 87119 (personal communication, 1999).

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Figures (2)

Fig. 1
Fig. 1

Schematic diagram of the experimental system. The two input beams may come from either a single laser or two separate lasers, depending on the experiment. D1, D2, detectors; PBS, polarizing beam splitter.

Fig. 2
Fig. 2

Frame grabber contour plots of the beam profile: (a) Fresnel reflection of the pump beams, (b) SBS beam and Fresnel reflection of the pump beams, (c) SBS beam and Fresnel reflection of the pump beams at maximum pump power, (d) Fresnel reflection of the aberrated pump beams, (d) SBS beam and Fresnel reflection of the aberrated pump beams.

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