Abstract

The application of heterostructure lasers to video disk systems is described. The buried heterostructure diode laser is used as a light source of the optical pickup for the optical video disks. This pickup enables video signals to be reproduced with a SNR of more than 40 dB. These lasers can be not only used as a light source to read out the signal from the disk but also as a detector of the reflected light.

© 1978 Optical Society of America

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References

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  1. W. B. Joyce et al., Appl. Phys. Lett, 28, 684, (1976).
    [CrossRef]
  2. I. Landy et al., Appl. Phys. Lett., 30, 87 (1977).
    [CrossRef]
  3. K. Compaan, P. Kramer, Philips Tech. Rev. 33, 178 (1973).
  4. T. Tsukada, J. Appl. Phys. 45, 4899 (1974).
    [CrossRef]
  5. Y. Tsunoda et al., IEEE Trans. Consumer Elect. CE-23, 479 (1977).
    [CrossRef]
  6. C. Bricot et al., IEEE Trans. Consumer Elect. 304 (November1976).
  7. Y. Mitsuhashi et al., Opt. Commun. 17, 95 (1976).
    [CrossRef]
  8. A. Seko et al., Appl. Phys. Lett. 27, 140 (1975).
    [CrossRef]
  9. H. Kressel, F. Z. Hawrylo, Appl. Phys. Lett. 28, 598 (1976).
    [CrossRef]
  10. K. Itoh et al., IEEE J. Quantum Electron. QE-11,426 (1975).
  11. K. Aiki et al., Appl. Phys. Lett. 30, 649 (1977).
    [CrossRef]
  12. H. Namizaki et al., J. Appl. Phys. 45, 2785 (1974).
    [CrossRef]

1977 (3)

I. Landy et al., Appl. Phys. Lett., 30, 87 (1977).
[CrossRef]

Y. Tsunoda et al., IEEE Trans. Consumer Elect. CE-23, 479 (1977).
[CrossRef]

K. Aiki et al., Appl. Phys. Lett. 30, 649 (1977).
[CrossRef]

1976 (4)

H. Kressel, F. Z. Hawrylo, Appl. Phys. Lett. 28, 598 (1976).
[CrossRef]

C. Bricot et al., IEEE Trans. Consumer Elect. 304 (November1976).

Y. Mitsuhashi et al., Opt. Commun. 17, 95 (1976).
[CrossRef]

W. B. Joyce et al., Appl. Phys. Lett, 28, 684, (1976).
[CrossRef]

1975 (2)

A. Seko et al., Appl. Phys. Lett. 27, 140 (1975).
[CrossRef]

K. Itoh et al., IEEE J. Quantum Electron. QE-11,426 (1975).

1974 (2)

H. Namizaki et al., J. Appl. Phys. 45, 2785 (1974).
[CrossRef]

T. Tsukada, J. Appl. Phys. 45, 4899 (1974).
[CrossRef]

1973 (1)

K. Compaan, P. Kramer, Philips Tech. Rev. 33, 178 (1973).

Aiki, K.

K. Aiki et al., Appl. Phys. Lett. 30, 649 (1977).
[CrossRef]

Bricot, C.

C. Bricot et al., IEEE Trans. Consumer Elect. 304 (November1976).

Compaan, K.

K. Compaan, P. Kramer, Philips Tech. Rev. 33, 178 (1973).

Hawrylo, F. Z.

H. Kressel, F. Z. Hawrylo, Appl. Phys. Lett. 28, 598 (1976).
[CrossRef]

Itoh, K.

K. Itoh et al., IEEE J. Quantum Electron. QE-11,426 (1975).

Joyce, W. B.

W. B. Joyce et al., Appl. Phys. Lett, 28, 684, (1976).
[CrossRef]

Kramer, P.

K. Compaan, P. Kramer, Philips Tech. Rev. 33, 178 (1973).

Kressel, H.

H. Kressel, F. Z. Hawrylo, Appl. Phys. Lett. 28, 598 (1976).
[CrossRef]

Landy, I.

I. Landy et al., Appl. Phys. Lett., 30, 87 (1977).
[CrossRef]

Mitsuhashi, Y.

Y. Mitsuhashi et al., Opt. Commun. 17, 95 (1976).
[CrossRef]

Namizaki, H.

H. Namizaki et al., J. Appl. Phys. 45, 2785 (1974).
[CrossRef]

Seko, A.

A. Seko et al., Appl. Phys. Lett. 27, 140 (1975).
[CrossRef]

Tsukada, T.

T. Tsukada, J. Appl. Phys. 45, 4899 (1974).
[CrossRef]

Tsunoda, Y.

Y. Tsunoda et al., IEEE Trans. Consumer Elect. CE-23, 479 (1977).
[CrossRef]

Appl. Phys. Lett (1)

W. B. Joyce et al., Appl. Phys. Lett, 28, 684, (1976).
[CrossRef]

Appl. Phys. Lett. (4)

I. Landy et al., Appl. Phys. Lett., 30, 87 (1977).
[CrossRef]

A. Seko et al., Appl. Phys. Lett. 27, 140 (1975).
[CrossRef]

H. Kressel, F. Z. Hawrylo, Appl. Phys. Lett. 28, 598 (1976).
[CrossRef]

K. Aiki et al., Appl. Phys. Lett. 30, 649 (1977).
[CrossRef]

IEEE J. Quantum Electron. (1)

K. Itoh et al., IEEE J. Quantum Electron. QE-11,426 (1975).

IEEE Trans. Consumer Elect. (2)

Y. Tsunoda et al., IEEE Trans. Consumer Elect. CE-23, 479 (1977).
[CrossRef]

C. Bricot et al., IEEE Trans. Consumer Elect. 304 (November1976).

J. Appl. Phys. (2)

H. Namizaki et al., J. Appl. Phys. 45, 2785 (1974).
[CrossRef]

T. Tsukada, J. Appl. Phys. 45, 4899 (1974).
[CrossRef]

Opt. Commun. (1)

Y. Mitsuhashi et al., Opt. Commun. 17, 95 (1976).
[CrossRef]

Philips Tech. Rev. (1)

K. Compaan, P. Kramer, Philips Tech. Rev. 33, 178 (1973).

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Figures (11)

Fig. 1
Fig. 1

Basic construction of the buried heterostructure laser.

Fig. 2
Fig. 2

Relation between the output laser power and the intensity distributions of the far-field laser pattern of the BH laser.

Fig. 3
Fig. 3

Near-field pattern of the BH laser: (a) spot pattern (displayed on the TV monitor) and (b) cross sections of the intensity distributions (left) parallel to the junction and (right) perpendicular to the junction.

Fig. 4
Fig. 4

Dependence of the relative noise power of the BH laser on the excitation current.

Fig. 5
Fig. 5

The BH laser and the power supply.

Fig. 6
Fig. 6

Basic configuration of the semiconductor laser pickup.

Fig. 7
Fig. 7

Appearance of the semiconductor laser pickup.

Fig. 8
Fig. 8

Focused laser spot pattern on the information pits.

Fig. 9
Fig. 9

Reconstructed image from the optical video disk by using the semiconductor laser pickup.

Fig. 10
Fig. 10

Transient responses of the voltage V across the laser electrodes and the laser output L to the turnon of the return beam R.7 Vertical scale: 5 mV/div. Horizontal scale: 0.2 μsec/div.

Fig. 11
Fig. 11

Experimental setup used in the SCOOP system.7

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