Abstract

Simultaneous generation of helical beams with linear and radial polarization is demonstrated by use of a segmented half-wave plate in a Ti:sapphire laser cavity. A linearly polarized Laguerre–Gaussian beam is converted to a radially polarized beam with a spiral phase shift and vice versa. In addition, these two beams coexist in the cavity, and the cavity emits one of these two beams from an output coupler.

© 2008 Optical Society of America

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References

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2007 (4)

2006 (1)

2005 (4)

I. J. Cooper, M. Roy, and C. J. R. Sheppard, Opt. Express 13, 1066 (2005).
[CrossRef] [PubMed]

Y. Kozawa and S. Sato, Opt. Lett. 30, 3063 (2005).
[CrossRef] [PubMed]

J.-F. Bisson, Yu. Senatsky, and K. Ueda, Laser Phys. Lett. 2, 327 (2005).
[CrossRef]

V. Garbin, D. Cojoc, E. Ferrari, R. Z. Proietti, S. Cabrini, and E. D. Fabrizio, Jpn. J. Appl. Phys. Part 1 44, 5773 (2005).
[CrossRef]

2004 (1)

N. Hayazawa, Y. Saito, and S. Kawata, Appl. Phys. Lett. 85, 6239 (2004).
[CrossRef]

2003 (1)

2002 (2)

2001 (1)

Y. F. Chen and Y. P. Lan, Phys. Rev. A 63, 063807 (2001).
[CrossRef]

2000 (1)

1999 (1)

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

1993 (1)

M. W. Beijersbergen, L. Allen, H. Vanderveen, and J. P. Woerdman, Opt. Commun. 96, 123 (1993).
[CrossRef]

1991 (1)

A. G. White, C. P. Smith, N. R. Heckenberg, H. Rubinsztein-Dunlop, R. McDuff, C. O. Weiss, and C. H. R. Tamm, J. Mod. Opt. 38, 2531 (1991).
[CrossRef]

Appl. Phys. Lett. (1)

N. Hayazawa, Y. Saito, and S. Kawata, Appl. Phys. Lett. 85, 6239 (2004).
[CrossRef]

J. Mod. Opt. (1)

A. G. White, C. P. Smith, N. R. Heckenberg, H. Rubinsztein-Dunlop, R. McDuff, C. O. Weiss, and C. H. R. Tamm, J. Mod. Opt. 38, 2531 (1991).
[CrossRef]

Jpn. J. Appl. Phys. (1)

V. Garbin, D. Cojoc, E. Ferrari, R. Z. Proietti, S. Cabrini, and E. D. Fabrizio, Jpn. J. Appl. Phys. Part 1 44, 5773 (2005).
[CrossRef]

Laser Phys. Lett. (1)

J.-F. Bisson, Yu. Senatsky, and K. Ueda, Laser Phys. Lett. 2, 327 (2005).
[CrossRef]

Opt. Commun. (3)

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

M. W. Beijersbergen, L. Allen, H. Vanderveen, and J. P. Woerdman, Opt. Commun. 96, 123 (1993).
[CrossRef]

G. Machavariani, Y. Lumer, I. Moshe, and S. Jackel, Opt. Commun. 271, 190 (2007).
[CrossRef]

Opt. Express (3)

Opt. Lett. (7)

Phys. Rev. A (1)

Y. F. Chen and Y. P. Lan, Phys. Rev. A 63, 063807 (2001).
[CrossRef]

Other (1)

L. Allen, S. M. Barnett, and M. J. Padgett, Optical Angular Momentum (Institute of Physics Publishing, 2003).
[CrossRef]

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Figures (4)

Fig. 1
Fig. 1

(a) Schematic of a Ti:sapphire laser with a segmented half-wave plate and (b) structure of a duodecimally segmented half-wave plate fabricated by an autocloning technique. An arrow indicates the direction of the fast axis.

Fig. 2
Fig. 2

Intensity patterns of an output beam just after an output coupler when a segmented half-wave plate is placed near the output coupler; (a) total intensity pattern, (b) to (e) intensity patterns after passing through a linear polarizer, and (f) measured intensity profile of (a) (dotted curve) and theoretical profile of a TEM 01 mode beam (solid curve). Each arrow indicates the direction of the polarizer.

Fig. 3
Fig. 3

Theoretical and measured intensity patterns of the beam shown in Fig. 2 in the far field. (a) and (b) are theoretical intensity patterns of radial and azimuthal electric fields, respectively; (c) and (d) are the phase argument of (a) and (b), respectively; (e)–(h) and (i)–(l) are theoretical and measured intensity patterns, respectively; (e) and (i) are total intensity patterns; (f)–(h) and (j)–(l) are intensity patterns after passing through a linear polarizer; and (m)–(p) are corresponding theoretical (solid curve) and measured (dotted curve) intensity profiles. Each arrow indicates the direction of the polarizer.

Fig. 4
Fig. 4

(a) Intensity pattern of the output beam after passing through a linear polarizer when a segmented half-wave plate is placed near the rear mirror, (b) interference pattern between the output beam and a part of the expanded output beam, and (c) measured intensity profile of (a) (dotted curve) and theoretical profile of a TEM 01 mode beam (solid curve). An arrow indicates the direction of the polarizer.

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