Abstract

We present a collimator design with a horizontal beam expander for a Blu-ray Disc pickup head. The design transforms the shape of a laser diode beam from an elliptical into circular which achieves higher efficiency in the pickup head system. In this research, we suggest two ways to do the beam expander. One way is to use two cylindrical lenses, and the other is to use two prisms.

© 2009 Optical Society of America

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References

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  1. W. S. Sun, T. X. Lee, C. C. Sun, C. H. Lin, and C. Y. Chen, "Design of miniature HD-DVD optical pick-up head using a Penta prism," J. Mod. Opt. 52, 775-789 (2005).
    [CrossRef]
  2. W. S. Sun, C. C. Sun, J. T. Chang, C. L. Tien, and S. H. Ma, "Triple-wavelength optical pickup head designs for compact disk, digital versatile disk and high-density digital versatile disk devices, " J. Mod. Opt. 52, 2523-2547 (2005).
    [CrossRef]
  3. N. Murao, H. Koyanagi, K. Koike, and S. Ohtaki, "Photo-Polymer objective lens for red blue lasers," Jpn. J. Appl. Phys. 39, 906-907 (2000).
    [CrossRef]
  4. Y. Tanaka, T. Watanabe, M. Shinoda, T. Shimouma, Y. Murakami, and A. Takahashi, "Applying an objective lens of 0.7-numerical aperture to a center-aperture-detection type of magnetically induced superresolution disk," Jpn. J. Appl. Phys. 39, 719-724 (2000).
    [CrossRef]
  5. R. Liang, J. Carriere, and M. Mansuripur, "Intensity, polarization, and phase information in optical disk systems," Appl. Opt. 41, 1565-1573 (2002).
    [CrossRef] [PubMed]
  6. W. H. Lee, "Holographic optical head for compact disk applications," Opt. Eng. 28, 650-653 (1989).
  7. Y. Komma, S. Kadowaki, Y. Hori, and M. Kato, "Holographic Optical element for an optical disk head with spot-size detection sevo optics," Appl. Opt. 29, 5127-5130 (1990).
    [CrossRef] [PubMed]
  8. I. Ichimura, F. Maeda, K Osato, K. Yamamoto, and Y. Kasamiet, "Optical Disk Recording Using a GaN Blu-Violet Laser Diode," Jpn. J. Appl. Phy. 39, 037-942 (2000).
    [CrossRef]
  9. W. H. Sun, U.S. Parent 20060209293 (Sep. 21, 2006).
  10. W. H. Sun, U.S. Parent 20060215530 (Sep. 28, 2006).
  11. W. H. Sun, U.S. Parent 7355798 (Apr. 8, 2008).
  12. M. Lakin, Lens Design (Marcel Dekker, New York, 1995) p. 148.
  13. R. Kingslake, Optical System Design (Academic Press, New York, 1983) p. 225.
  14. LightTools Core Module User′s Guide, Version 6.1, Optical Research Associates, 2008.
  15. Code V Reference Manual, Version 9.8, Optical Research Associates, 2007.

2005 (2)

W. S. Sun, T. X. Lee, C. C. Sun, C. H. Lin, and C. Y. Chen, "Design of miniature HD-DVD optical pick-up head using a Penta prism," J. Mod. Opt. 52, 775-789 (2005).
[CrossRef]

W. S. Sun, C. C. Sun, J. T. Chang, C. L. Tien, and S. H. Ma, "Triple-wavelength optical pickup head designs for compact disk, digital versatile disk and high-density digital versatile disk devices, " J. Mod. Opt. 52, 2523-2547 (2005).
[CrossRef]

2002 (1)

2000 (2)

N. Murao, H. Koyanagi, K. Koike, and S. Ohtaki, "Photo-Polymer objective lens for red blue lasers," Jpn. J. Appl. Phys. 39, 906-907 (2000).
[CrossRef]

Y. Tanaka, T. Watanabe, M. Shinoda, T. Shimouma, Y. Murakami, and A. Takahashi, "Applying an objective lens of 0.7-numerical aperture to a center-aperture-detection type of magnetically induced superresolution disk," Jpn. J. Appl. Phys. 39, 719-724 (2000).
[CrossRef]

1990 (1)

1989 (1)

W. H. Lee, "Holographic optical head for compact disk applications," Opt. Eng. 28, 650-653 (1989).

Carriere, J.

Chang, J. T.

W. S. Sun, C. C. Sun, J. T. Chang, C. L. Tien, and S. H. Ma, "Triple-wavelength optical pickup head designs for compact disk, digital versatile disk and high-density digital versatile disk devices, " J. Mod. Opt. 52, 2523-2547 (2005).
[CrossRef]

Chen, C. Y.

W. S. Sun, T. X. Lee, C. C. Sun, C. H. Lin, and C. Y. Chen, "Design of miniature HD-DVD optical pick-up head using a Penta prism," J. Mod. Opt. 52, 775-789 (2005).
[CrossRef]

Hori, Y.

Kadowaki, S.

Kato, M.

Koike, K.

N. Murao, H. Koyanagi, K. Koike, and S. Ohtaki, "Photo-Polymer objective lens for red blue lasers," Jpn. J. Appl. Phys. 39, 906-907 (2000).
[CrossRef]

Komma, Y.

Koyanagi, H.

N. Murao, H. Koyanagi, K. Koike, and S. Ohtaki, "Photo-Polymer objective lens for red blue lasers," Jpn. J. Appl. Phys. 39, 906-907 (2000).
[CrossRef]

Lee, T. X.

W. S. Sun, T. X. Lee, C. C. Sun, C. H. Lin, and C. Y. Chen, "Design of miniature HD-DVD optical pick-up head using a Penta prism," J. Mod. Opt. 52, 775-789 (2005).
[CrossRef]

Lee, W. H.

W. H. Lee, "Holographic optical head for compact disk applications," Opt. Eng. 28, 650-653 (1989).

Liang, R.

Lin, C. H.

W. S. Sun, T. X. Lee, C. C. Sun, C. H. Lin, and C. Y. Chen, "Design of miniature HD-DVD optical pick-up head using a Penta prism," J. Mod. Opt. 52, 775-789 (2005).
[CrossRef]

Ma, S. H.

W. S. Sun, C. C. Sun, J. T. Chang, C. L. Tien, and S. H. Ma, "Triple-wavelength optical pickup head designs for compact disk, digital versatile disk and high-density digital versatile disk devices, " J. Mod. Opt. 52, 2523-2547 (2005).
[CrossRef]

Mansuripur, M.

Murakami, Y.

Y. Tanaka, T. Watanabe, M. Shinoda, T. Shimouma, Y. Murakami, and A. Takahashi, "Applying an objective lens of 0.7-numerical aperture to a center-aperture-detection type of magnetically induced superresolution disk," Jpn. J. Appl. Phys. 39, 719-724 (2000).
[CrossRef]

Murao, N.

N. Murao, H. Koyanagi, K. Koike, and S. Ohtaki, "Photo-Polymer objective lens for red blue lasers," Jpn. J. Appl. Phys. 39, 906-907 (2000).
[CrossRef]

Ohtaki, S.

N. Murao, H. Koyanagi, K. Koike, and S. Ohtaki, "Photo-Polymer objective lens for red blue lasers," Jpn. J. Appl. Phys. 39, 906-907 (2000).
[CrossRef]

Shimouma, T.

Y. Tanaka, T. Watanabe, M. Shinoda, T. Shimouma, Y. Murakami, and A. Takahashi, "Applying an objective lens of 0.7-numerical aperture to a center-aperture-detection type of magnetically induced superresolution disk," Jpn. J. Appl. Phys. 39, 719-724 (2000).
[CrossRef]

Shinoda, M.

Y. Tanaka, T. Watanabe, M. Shinoda, T. Shimouma, Y. Murakami, and A. Takahashi, "Applying an objective lens of 0.7-numerical aperture to a center-aperture-detection type of magnetically induced superresolution disk," Jpn. J. Appl. Phys. 39, 719-724 (2000).
[CrossRef]

Sun, C. C.

W. S. Sun, T. X. Lee, C. C. Sun, C. H. Lin, and C. Y. Chen, "Design of miniature HD-DVD optical pick-up head using a Penta prism," J. Mod. Opt. 52, 775-789 (2005).
[CrossRef]

W. S. Sun, C. C. Sun, J. T. Chang, C. L. Tien, and S. H. Ma, "Triple-wavelength optical pickup head designs for compact disk, digital versatile disk and high-density digital versatile disk devices, " J. Mod. Opt. 52, 2523-2547 (2005).
[CrossRef]

Sun, W. S.

W. S. Sun, C. C. Sun, J. T. Chang, C. L. Tien, and S. H. Ma, "Triple-wavelength optical pickup head designs for compact disk, digital versatile disk and high-density digital versatile disk devices, " J. Mod. Opt. 52, 2523-2547 (2005).
[CrossRef]

W. S. Sun, T. X. Lee, C. C. Sun, C. H. Lin, and C. Y. Chen, "Design of miniature HD-DVD optical pick-up head using a Penta prism," J. Mod. Opt. 52, 775-789 (2005).
[CrossRef]

Takahashi, A.

Y. Tanaka, T. Watanabe, M. Shinoda, T. Shimouma, Y. Murakami, and A. Takahashi, "Applying an objective lens of 0.7-numerical aperture to a center-aperture-detection type of magnetically induced superresolution disk," Jpn. J. Appl. Phys. 39, 719-724 (2000).
[CrossRef]

Tanaka, Y.

Y. Tanaka, T. Watanabe, M. Shinoda, T. Shimouma, Y. Murakami, and A. Takahashi, "Applying an objective lens of 0.7-numerical aperture to a center-aperture-detection type of magnetically induced superresolution disk," Jpn. J. Appl. Phys. 39, 719-724 (2000).
[CrossRef]

Tien, C. L.

W. S. Sun, C. C. Sun, J. T. Chang, C. L. Tien, and S. H. Ma, "Triple-wavelength optical pickup head designs for compact disk, digital versatile disk and high-density digital versatile disk devices, " J. Mod. Opt. 52, 2523-2547 (2005).
[CrossRef]

Watanabe, T.

Y. Tanaka, T. Watanabe, M. Shinoda, T. Shimouma, Y. Murakami, and A. Takahashi, "Applying an objective lens of 0.7-numerical aperture to a center-aperture-detection type of magnetically induced superresolution disk," Jpn. J. Appl. Phys. 39, 719-724 (2000).
[CrossRef]

Appl. Opt. (2)

J. Mod. Opt. (2)

W. S. Sun, T. X. Lee, C. C. Sun, C. H. Lin, and C. Y. Chen, "Design of miniature HD-DVD optical pick-up head using a Penta prism," J. Mod. Opt. 52, 775-789 (2005).
[CrossRef]

W. S. Sun, C. C. Sun, J. T. Chang, C. L. Tien, and S. H. Ma, "Triple-wavelength optical pickup head designs for compact disk, digital versatile disk and high-density digital versatile disk devices, " J. Mod. Opt. 52, 2523-2547 (2005).
[CrossRef]

Jpn. J. Appl. Phys. (2)

N. Murao, H. Koyanagi, K. Koike, and S. Ohtaki, "Photo-Polymer objective lens for red blue lasers," Jpn. J. Appl. Phys. 39, 906-907 (2000).
[CrossRef]

Y. Tanaka, T. Watanabe, M. Shinoda, T. Shimouma, Y. Murakami, and A. Takahashi, "Applying an objective lens of 0.7-numerical aperture to a center-aperture-detection type of magnetically induced superresolution disk," Jpn. J. Appl. Phys. 39, 719-724 (2000).
[CrossRef]

Opt. Eng. (1)

W. H. Lee, "Holographic optical head for compact disk applications," Opt. Eng. 28, 650-653 (1989).

Other (8)

I. Ichimura, F. Maeda, K Osato, K. Yamamoto, and Y. Kasamiet, "Optical Disk Recording Using a GaN Blu-Violet Laser Diode," Jpn. J. Appl. Phy. 39, 037-942 (2000).
[CrossRef]

W. H. Sun, U.S. Parent 20060209293 (Sep. 21, 2006).

W. H. Sun, U.S. Parent 20060215530 (Sep. 28, 2006).

W. H. Sun, U.S. Parent 7355798 (Apr. 8, 2008).

M. Lakin, Lens Design (Marcel Dekker, New York, 1995) p. 148.

R. Kingslake, Optical System Design (Academic Press, New York, 1983) p. 225.

LightTools Core Module User′s Guide, Version 6.1, Optical Research Associates, 2008.

Code V Reference Manual, Version 9.8, Optical Research Associates, 2007.

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Figures (18)

Fig. 1.
Fig. 1.

Layout of the traditional optical pickup head.

Fig. 2.
Fig. 2.

Relative intensity distribution of the laser diode for the traditional optical pickup head.

Fig. 3.
Fig. 3.

Horizontal beam expander with two cylindrical lenses.

Fig. 4.
Fig. 4.

Horizontal beam expander with two prisms.

Fig. 5.
Fig. 5.

Layout of quadrant photo detector.

Fig. 6.
Fig. 6.

Beam shape measurements by astigmatism method (a) the Blu-ray Disc in front of the focal point. (b) the Blu-ray Disc on the focal point. (c) the Blu-ray Disc in behind of the focal point.

Fig. 7.
Fig. 7.

Plot of the S-Curve.

Fig. 8.
Fig. 8.

Relative intensity distribution of the horizontal beam expander for an optical pickup head.

Fig. 9.
Fig. 9.

Layout of the horizontal beam expander with two cylindrical lenses.

Fig. 10.
Fig. 10.

Optical efficiency of the un-polarized horizontal beam expander with two cylindrical lenses.

Fig. 11.
Fig. 11.

Optical efficiency of the polarized horizontal beam expander with two cylindrical lenses, a PBS and a 1/4λ wave plate.

Fig. 12.
Fig. 12.

Layout of the horizontal beam expander with two prisms.

Fig. 13.
Fig. 13.

Optical efficiency of the un-polarized horizontal beam expander with two prisms.

Fig. 14.
Fig. 14.

Optical efficiency of the polarized horizontal beam expander with two prisms, a PBS and a 1/4λ wave plate.

Fig. 15.
Fig. 15.

Tolerance analysis of the horizontal beam expander system with two cylindrical lenses.

Fig. 16.
Fig. 16.

Comparison of optical efficiency for different optical pickup head designs.

Fig. 17.
Fig. 17.

Traditional design with un-polarization by the beam shape changes at different focusing position on the photo detector.

Fig. 18.
Fig. 18.

Horizontal beam expander design with un-polarization by the beam shape changes at different focusing position on the photo detector.

Tables (1)

Tables Icon

Table 1. Specifications of the HD-DVD system.

Equations (10)

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N A o = n o sin θ o = D o 2 f o ,
N A c = sin 19.372 ° = D c 2 f c = 0.332 ,
m = f 2 f 1 = D 2 D 1 ,
m 1 = d 2 d 1 = cos θ 1 cos θ 2 cos θ 1 cos θ 2 = cos α cos ( α + α 1 ) .
m 2 = d 3 d 2 = cos θ 3 cos θ 4 cos θ 3 cos θ 4 = cos α cos ( α + α 1 ) .
m = m 1 m 2 = d 3 d 1 = cos 2 α cos 2 ( α + α 1 ) .
δ = δ 1 + δ 2 = 0 .
d = f 1 + f 2 = 3.323 mm .
sin ( α + α 1 ) = n sin α ,
sin 2 α = m 1 m n 2 1 ,

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