Abstract

A simple beam-shaping technique is described whereby the output from a highly asymmetric non-diffraction-limited laser source, such as a high-power diode bar, can be reconfigured with nearly equal beam-quality factors in orthogonal planes and without a significant reduction in brightness. Using this technique, in conjunction with conventional lenses, we have focused the output from a 20-W cw diode bar to a very intense, nearly circular spot with a 1/e2 beam diameter of ~100 μm and a far-field beam divergence (half-angle) of ~0.2 rad.

© 1996 Optical Society of America

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References

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    [CrossRef] [PubMed]
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    [CrossRef] [PubMed]
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    [CrossRef]
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    [CrossRef] [PubMed]
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1995

1993

1992

J. R. Leger, W. C. Goltsos, IEEE J. Quantum Electron. 28, 1088 (1992).
[CrossRef]

1990

Baer, T. M.

M. S. Kierstead, T. M. Baer, in Conference on Lasers and Electro-Optics, Vol. 10 of 1991 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1991), p. 490.

Balmer, J. E.

Chiba, K.

Clarkson, W. A.

W. A. Clarkson, A. B. Neilson, D. C. Hanna, UK patent application9324589.2 (1993).

Goltsos, W. C.

J. R. Leger, W. C. Goltsos, IEEE J. Quantum Electron. 28, 1088 (1992).
[CrossRef]

Graf, Th.

Hanna, D. C.

W. A. Clarkson, A. B. Neilson, D. C. Hanna, UK patent application9324589.2 (1993).

Kierstead, M. S.

M. S. Kierstead, T. M. Baer, in Conference on Lasers and Electro-Optics, Vol. 10 of 1991 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1991), p. 490.

Kobayashi, T.

Leger, J. R.

J. R. Leger, W. C. Goltsos, IEEE J. Quantum Electron. 28, 1088 (1992).
[CrossRef]

Neilson, A. B.

W. A. Clarkson, A. B. Neilson, D. C. Hanna, UK patent application9324589.2 (1993).

Saito, Y.

Yamaguchi, S.

Zbinden, H.

IEEE J. Quantum Electron.

J. R. Leger, W. C. Goltsos, IEEE J. Quantum Electron. 28, 1088 (1992).
[CrossRef]

Opt. Lett.

Other

W. A. Clarkson, A. B. Neilson, D. C. Hanna, UK patent application9324589.2 (1993).

M. S. Kierstead, T. M. Baer, in Conference on Lasers and Electro-Optics, Vol. 10 of 1991 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1991), p. 490.

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Figures (3)

Fig. 1
Fig. 1

Two-mirror beam shaper: (a) plan view, (b) side view.

Fig. 2
Fig. 2

Focusing arrangement for a 20-W diode bar.

Fig. 3
Fig. 3

Transverse intensity profiles at the beam focus (a) perpendicular to the array (y direction) and (b) parallel to the array (x direction).

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