Abstract

We present a new, compact, and practical optical mode converter that efficiently transforms a high-order Hermite–Gaussian (HG) laser beam into a nearly Gaussian beam. The mode converter is based on coherently adding different transverse parts of the high-order mode beam by use of a single planar interferometric element. The method, configuration, and experimental results obtained with a pulsed Nd:YAG HG TEM10 laser beam are presented. The results reveal that the efficiency of conversion of a HG beam to a nearly Gaussian beam can be as high as 90%.

© 2003 Optical Society of America

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  1. R. Oron, Y. Danziger, N. Davidson, A. A. Friesem, and E. Hasman, Appl. Phys. Lett. 74, 1373 (1999).
    [CrossRef]
  2. R. Oron, Y. Danziger, N. Davidson, A. A. Friesem, and E. Hasman, Opt. Commun. 169, 115 (1999).
    [CrossRef]
  3. A. A. Ishaaya, N. Davidson, G. Machavariani, E. Hasman, and A. A. Friesem, IEEE J. Quantum Electron. 39, 74 (2003).
    [CrossRef]
  4. T. Graf and J. E. Balmer, Opt. Commun. 131, 77 (1996).
    [CrossRef]
  5. R. Oron, N. Davidson, E. Hasman, and A. A. Friesem, Progr. Opt. 42, 325 (2001).
    [CrossRef]
  6. N. Davidson, A. A. Friesem, and E. Hasman, Appl. Phys. Lett. 61, 381 (1992).
    [CrossRef]
  7. R. Oron, N. Davidson, A. A. Friesem, and E. Hasman, Opt. Lett. 25, 939 (2000).
    [CrossRef]
  8. G. Machavariani, N. Davidson, A. A. Ishaaya, A. A. Friesem, and E. Hasman, Opt. Lett. 27, 1501 (2002).
    [CrossRef]
  9. A. E. Siegman, Proc. SPIE 1224, 2 (1990).
    [CrossRef]

2003

A. A. Ishaaya, N. Davidson, G. Machavariani, E. Hasman, and A. A. Friesem, IEEE J. Quantum Electron. 39, 74 (2003).
[CrossRef]

2002

2001

R. Oron, N. Davidson, E. Hasman, and A. A. Friesem, Progr. Opt. 42, 325 (2001).
[CrossRef]

2000

1999

R. Oron, Y. Danziger, N. Davidson, A. A. Friesem, and E. Hasman, Appl. Phys. Lett. 74, 1373 (1999).
[CrossRef]

R. Oron, Y. Danziger, N. Davidson, A. A. Friesem, and E. Hasman, Opt. Commun. 169, 115 (1999).
[CrossRef]

1996

T. Graf and J. E. Balmer, Opt. Commun. 131, 77 (1996).
[CrossRef]

1992

N. Davidson, A. A. Friesem, and E. Hasman, Appl. Phys. Lett. 61, 381 (1992).
[CrossRef]

1990

A. E. Siegman, Proc. SPIE 1224, 2 (1990).
[CrossRef]

Balmer, J. E.

T. Graf and J. E. Balmer, Opt. Commun. 131, 77 (1996).
[CrossRef]

Danziger, Y.

R. Oron, Y. Danziger, N. Davidson, A. A. Friesem, and E. Hasman, Appl. Phys. Lett. 74, 1373 (1999).
[CrossRef]

R. Oron, Y. Danziger, N. Davidson, A. A. Friesem, and E. Hasman, Opt. Commun. 169, 115 (1999).
[CrossRef]

Davidson, N.

A. A. Ishaaya, N. Davidson, G. Machavariani, E. Hasman, and A. A. Friesem, IEEE J. Quantum Electron. 39, 74 (2003).
[CrossRef]

G. Machavariani, N. Davidson, A. A. Ishaaya, A. A. Friesem, and E. Hasman, Opt. Lett. 27, 1501 (2002).
[CrossRef]

R. Oron, N. Davidson, E. Hasman, and A. A. Friesem, Progr. Opt. 42, 325 (2001).
[CrossRef]

R. Oron, N. Davidson, A. A. Friesem, and E. Hasman, Opt. Lett. 25, 939 (2000).
[CrossRef]

R. Oron, Y. Danziger, N. Davidson, A. A. Friesem, and E. Hasman, Opt. Commun. 169, 115 (1999).
[CrossRef]

R. Oron, Y. Danziger, N. Davidson, A. A. Friesem, and E. Hasman, Appl. Phys. Lett. 74, 1373 (1999).
[CrossRef]

N. Davidson, A. A. Friesem, and E. Hasman, Appl. Phys. Lett. 61, 381 (1992).
[CrossRef]

Friesem, A. A.

A. A. Ishaaya, N. Davidson, G. Machavariani, E. Hasman, and A. A. Friesem, IEEE J. Quantum Electron. 39, 74 (2003).
[CrossRef]

G. Machavariani, N. Davidson, A. A. Ishaaya, A. A. Friesem, and E. Hasman, Opt. Lett. 27, 1501 (2002).
[CrossRef]

R. Oron, N. Davidson, E. Hasman, and A. A. Friesem, Progr. Opt. 42, 325 (2001).
[CrossRef]

R. Oron, N. Davidson, A. A. Friesem, and E. Hasman, Opt. Lett. 25, 939 (2000).
[CrossRef]

R. Oron, Y. Danziger, N. Davidson, A. A. Friesem, and E. Hasman, Appl. Phys. Lett. 74, 1373 (1999).
[CrossRef]

R. Oron, Y. Danziger, N. Davidson, A. A. Friesem, and E. Hasman, Opt. Commun. 169, 115 (1999).
[CrossRef]

N. Davidson, A. A. Friesem, and E. Hasman, Appl. Phys. Lett. 61, 381 (1992).
[CrossRef]

Graf, T.

T. Graf and J. E. Balmer, Opt. Commun. 131, 77 (1996).
[CrossRef]

Hasman, E.

A. A. Ishaaya, N. Davidson, G. Machavariani, E. Hasman, and A. A. Friesem, IEEE J. Quantum Electron. 39, 74 (2003).
[CrossRef]

G. Machavariani, N. Davidson, A. A. Ishaaya, A. A. Friesem, and E. Hasman, Opt. Lett. 27, 1501 (2002).
[CrossRef]

R. Oron, N. Davidson, E. Hasman, and A. A. Friesem, Progr. Opt. 42, 325 (2001).
[CrossRef]

R. Oron, N. Davidson, A. A. Friesem, and E. Hasman, Opt. Lett. 25, 939 (2000).
[CrossRef]

R. Oron, Y. Danziger, N. Davidson, A. A. Friesem, and E. Hasman, Opt. Commun. 169, 115 (1999).
[CrossRef]

R. Oron, Y. Danziger, N. Davidson, A. A. Friesem, and E. Hasman, Appl. Phys. Lett. 74, 1373 (1999).
[CrossRef]

N. Davidson, A. A. Friesem, and E. Hasman, Appl. Phys. Lett. 61, 381 (1992).
[CrossRef]

Ishaaya, A. A.

A. A. Ishaaya, N. Davidson, G. Machavariani, E. Hasman, and A. A. Friesem, IEEE J. Quantum Electron. 39, 74 (2003).
[CrossRef]

G. Machavariani, N. Davidson, A. A. Ishaaya, A. A. Friesem, and E. Hasman, Opt. Lett. 27, 1501 (2002).
[CrossRef]

Machavariani, G.

A. A. Ishaaya, N. Davidson, G. Machavariani, E. Hasman, and A. A. Friesem, IEEE J. Quantum Electron. 39, 74 (2003).
[CrossRef]

G. Machavariani, N. Davidson, A. A. Ishaaya, A. A. Friesem, and E. Hasman, Opt. Lett. 27, 1501 (2002).
[CrossRef]

Oron, R.

R. Oron, N. Davidson, E. Hasman, and A. A. Friesem, Progr. Opt. 42, 325 (2001).
[CrossRef]

R. Oron, N. Davidson, A. A. Friesem, and E. Hasman, Opt. Lett. 25, 939 (2000).
[CrossRef]

R. Oron, Y. Danziger, N. Davidson, A. A. Friesem, and E. Hasman, Appl. Phys. Lett. 74, 1373 (1999).
[CrossRef]

R. Oron, Y. Danziger, N. Davidson, A. A. Friesem, and E. Hasman, Opt. Commun. 169, 115 (1999).
[CrossRef]

Siegman, A. E.

A. E. Siegman, Proc. SPIE 1224, 2 (1990).
[CrossRef]

Appl. Phys. Lett.

R. Oron, Y. Danziger, N. Davidson, A. A. Friesem, and E. Hasman, Appl. Phys. Lett. 74, 1373 (1999).
[CrossRef]

N. Davidson, A. A. Friesem, and E. Hasman, Appl. Phys. Lett. 61, 381 (1992).
[CrossRef]

IEEE J. Quantum Electron.

A. A. Ishaaya, N. Davidson, G. Machavariani, E. Hasman, and A. A. Friesem, IEEE J. Quantum Electron. 39, 74 (2003).
[CrossRef]

Opt. Commun.

T. Graf and J. E. Balmer, Opt. Commun. 131, 77 (1996).
[CrossRef]

R. Oron, Y. Danziger, N. Davidson, A. A. Friesem, and E. Hasman, Opt. Commun. 169, 115 (1999).
[CrossRef]

Opt. Lett.

Proc. SPIE

A. E. Siegman, Proc. SPIE 1224, 2 (1990).
[CrossRef]

Progr. Opt.

R. Oron, N. Davidson, E. Hasman, and A. A. Friesem, Progr. Opt. 42, 325 (2001).
[CrossRef]

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Figures (4)

Fig. 1
Fig. 1

(a) Configuration of the laser resonator designed for generating a HG10 mode beam. (b) Configuration of a compact and practical optical mode converter for efficiently transforming the high-order HG10 mode beam into a nearly Gaussian beam.

Fig. 2
Fig. 2

Calculated power loss and Mx2 as functions of the relative shift between the lobes when the two lobes of a HG10 beam are coherently added with the single interferometric element. It is assumed that part of the tail of the transmitted lobe emerges from the element through the AR-coated region.

Fig. 3
Fig. 3

Experimental intensity distributions of the HG10 mode beam and the combined output beam. (a), (b) Near- and far-field intensity distributions of the input HG10 beam; (c), (d) near- and far-field intensity distributions of the combined output beam; (e), (f) normalized near- and far-field intensity cross-section traces in the x direction, where the dashed curves represent the input beam and the solid curve represents the output beam.

Fig. 4
Fig. 4

Mode-converting element for transforming a HG30 beam into a nearly Gaussian beam.

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