Abstract

Lens designs are developed for parallel readout of data stored on optical disks. Optimizations of a single aspheric objective with standard wavelengths and numerical apertures are performed. These designs are evaluated for degree of parallelism achieved, improvement in aggregate data rate, source power requirements, and effect on head mass. We find that more than 225 channels and data rates of ~4 Gbits/s can be supported with low-cost readout optics.

© 1995 Optical Society of America

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References

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  1. A. Marchant, Optical Recording: A Technical Overview (Addison-Wesley, Reading, Mass., 1990), Chap. 1, pp. 10–19; Chap. 11, p. 282.
  2. D. Psaltis, M. A. Neifeld, A. A. Yamamura, S. Kobayashi, “Optical memory disk in optical information processing,” Appl. Opt. 29, 2038–2057 (1990).
    [CrossRef] [PubMed]
  3. P. J. Marchand, A. V. Krishnamoorthy, P. Ambs, J. Gresser, S. C. Essner, S. H. Lee, “Design of a motionless head for parallel readout optical disk,” in Optics for Computers: Architectures and Technologies, G. J. Lebreton, ed., Proc. Soc. Photo-Opt. Instrum. Eng.1505, 38–49 (1991).
  4. C. Reno, “Optical disk recording techniques for data rates beyond 100 Mbps,” in Optical Disks Systems and Applications, E. V. LaBudde, ed., Proc. Soc. Photo-Opt. Instrum. Eng.421, 156–162 (1983).
  5. J. L. Jewell, W. S. Fu, R. P. Bryan, S. E. Swirhan, N. E. Quinn, G. R. Olbright, “Surface-emitting laser diode arrays (Lase-Arrays™)—multi-channel applications in optical storage,” in Optical Data Storage, Vol. 10 of 1994 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1994), pp. 28–29.
  6. W. J. Smith, Modern Optical Engineering, 2nd ed. (McGraw-Hill, New York, 1992), Chap. 10, p. 292.
  7. J. M. Senior, Optical Fiber Communication Principles and Practices (Prentice-Hall, Englewood Cliffs, N.J., 1985), Chap. 10, pp. 428–433.
  8. S. E. Miller, I. P. Kaminow, Optical Fiber Telecommunications II (Academic, Boston, Mass., 1988), Chap. 18, pp. 698–708.
  9. 2.6 GB Cartridge Standard, ISO/IEC/JTC1/SC23/WG2-14517, 5th draft (IBM Corporation, Armonk, New York).

1990

Ambs, P.

P. J. Marchand, A. V. Krishnamoorthy, P. Ambs, J. Gresser, S. C. Essner, S. H. Lee, “Design of a motionless head for parallel readout optical disk,” in Optics for Computers: Architectures and Technologies, G. J. Lebreton, ed., Proc. Soc. Photo-Opt. Instrum. Eng.1505, 38–49 (1991).

Bryan, R. P.

J. L. Jewell, W. S. Fu, R. P. Bryan, S. E. Swirhan, N. E. Quinn, G. R. Olbright, “Surface-emitting laser diode arrays (Lase-Arrays™)—multi-channel applications in optical storage,” in Optical Data Storage, Vol. 10 of 1994 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1994), pp. 28–29.

Essner, S. C.

P. J. Marchand, A. V. Krishnamoorthy, P. Ambs, J. Gresser, S. C. Essner, S. H. Lee, “Design of a motionless head for parallel readout optical disk,” in Optics for Computers: Architectures and Technologies, G. J. Lebreton, ed., Proc. Soc. Photo-Opt. Instrum. Eng.1505, 38–49 (1991).

Fu, W. S.

J. L. Jewell, W. S. Fu, R. P. Bryan, S. E. Swirhan, N. E. Quinn, G. R. Olbright, “Surface-emitting laser diode arrays (Lase-Arrays™)—multi-channel applications in optical storage,” in Optical Data Storage, Vol. 10 of 1994 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1994), pp. 28–29.

Gresser, J.

P. J. Marchand, A. V. Krishnamoorthy, P. Ambs, J. Gresser, S. C. Essner, S. H. Lee, “Design of a motionless head for parallel readout optical disk,” in Optics for Computers: Architectures and Technologies, G. J. Lebreton, ed., Proc. Soc. Photo-Opt. Instrum. Eng.1505, 38–49 (1991).

Jewell, J. L.

J. L. Jewell, W. S. Fu, R. P. Bryan, S. E. Swirhan, N. E. Quinn, G. R. Olbright, “Surface-emitting laser diode arrays (Lase-Arrays™)—multi-channel applications in optical storage,” in Optical Data Storage, Vol. 10 of 1994 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1994), pp. 28–29.

Kaminow, I. P.

S. E. Miller, I. P. Kaminow, Optical Fiber Telecommunications II (Academic, Boston, Mass., 1988), Chap. 18, pp. 698–708.

Kobayashi, S.

Krishnamoorthy, A. V.

P. J. Marchand, A. V. Krishnamoorthy, P. Ambs, J. Gresser, S. C. Essner, S. H. Lee, “Design of a motionless head for parallel readout optical disk,” in Optics for Computers: Architectures and Technologies, G. J. Lebreton, ed., Proc. Soc. Photo-Opt. Instrum. Eng.1505, 38–49 (1991).

Lee, S. H.

P. J. Marchand, A. V. Krishnamoorthy, P. Ambs, J. Gresser, S. C. Essner, S. H. Lee, “Design of a motionless head for parallel readout optical disk,” in Optics for Computers: Architectures and Technologies, G. J. Lebreton, ed., Proc. Soc. Photo-Opt. Instrum. Eng.1505, 38–49 (1991).

Marchand, P. J.

P. J. Marchand, A. V. Krishnamoorthy, P. Ambs, J. Gresser, S. C. Essner, S. H. Lee, “Design of a motionless head for parallel readout optical disk,” in Optics for Computers: Architectures and Technologies, G. J. Lebreton, ed., Proc. Soc. Photo-Opt. Instrum. Eng.1505, 38–49 (1991).

Marchant, A.

A. Marchant, Optical Recording: A Technical Overview (Addison-Wesley, Reading, Mass., 1990), Chap. 1, pp. 10–19; Chap. 11, p. 282.

Miller, S. E.

S. E. Miller, I. P. Kaminow, Optical Fiber Telecommunications II (Academic, Boston, Mass., 1988), Chap. 18, pp. 698–708.

Neifeld, M. A.

Olbright, G. R.

J. L. Jewell, W. S. Fu, R. P. Bryan, S. E. Swirhan, N. E. Quinn, G. R. Olbright, “Surface-emitting laser diode arrays (Lase-Arrays™)—multi-channel applications in optical storage,” in Optical Data Storage, Vol. 10 of 1994 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1994), pp. 28–29.

Psaltis, D.

Quinn, N. E.

J. L. Jewell, W. S. Fu, R. P. Bryan, S. E. Swirhan, N. E. Quinn, G. R. Olbright, “Surface-emitting laser diode arrays (Lase-Arrays™)—multi-channel applications in optical storage,” in Optical Data Storage, Vol. 10 of 1994 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1994), pp. 28–29.

Reno, C.

C. Reno, “Optical disk recording techniques for data rates beyond 100 Mbps,” in Optical Disks Systems and Applications, E. V. LaBudde, ed., Proc. Soc. Photo-Opt. Instrum. Eng.421, 156–162 (1983).

Senior, J. M.

J. M. Senior, Optical Fiber Communication Principles and Practices (Prentice-Hall, Englewood Cliffs, N.J., 1985), Chap. 10, pp. 428–433.

Smith, W. J.

W. J. Smith, Modern Optical Engineering, 2nd ed. (McGraw-Hill, New York, 1992), Chap. 10, p. 292.

Swirhan, S. E.

J. L. Jewell, W. S. Fu, R. P. Bryan, S. E. Swirhan, N. E. Quinn, G. R. Olbright, “Surface-emitting laser diode arrays (Lase-Arrays™)—multi-channel applications in optical storage,” in Optical Data Storage, Vol. 10 of 1994 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1994), pp. 28–29.

Yamamura, A. A.

Appl. Opt.

Other

P. J. Marchand, A. V. Krishnamoorthy, P. Ambs, J. Gresser, S. C. Essner, S. H. Lee, “Design of a motionless head for parallel readout optical disk,” in Optics for Computers: Architectures and Technologies, G. J. Lebreton, ed., Proc. Soc. Photo-Opt. Instrum. Eng.1505, 38–49 (1991).

C. Reno, “Optical disk recording techniques for data rates beyond 100 Mbps,” in Optical Disks Systems and Applications, E. V. LaBudde, ed., Proc. Soc. Photo-Opt. Instrum. Eng.421, 156–162 (1983).

J. L. Jewell, W. S. Fu, R. P. Bryan, S. E. Swirhan, N. E. Quinn, G. R. Olbright, “Surface-emitting laser diode arrays (Lase-Arrays™)—multi-channel applications in optical storage,” in Optical Data Storage, Vol. 10 of 1994 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1994), pp. 28–29.

W. J. Smith, Modern Optical Engineering, 2nd ed. (McGraw-Hill, New York, 1992), Chap. 10, p. 292.

J. M. Senior, Optical Fiber Communication Principles and Practices (Prentice-Hall, Englewood Cliffs, N.J., 1985), Chap. 10, pp. 428–433.

S. E. Miller, I. P. Kaminow, Optical Fiber Telecommunications II (Academic, Boston, Mass., 1988), Chap. 18, pp. 698–708.

2.6 GB Cartridge Standard, ISO/IEC/JTC1/SC23/WG2-14517, 5th draft (IBM Corporation, Armonk, New York).

A. Marchant, Optical Recording: A Technical Overview (Addison-Wesley, Reading, Mass., 1990), Chap. 1, pp. 10–19; Chap. 11, p. 282.

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Figures (10)

Fig. 1
Fig. 1

Optical head with 1-D parallel readout.

Fig. 2
Fig. 2

Intersymbol interference versus duty cycle.

Fig. 3
Fig. 3

Normalized SNR versus duty cycle.

Fig. 4
Fig. 4

Optimized spot radius at each maximum field for 5-mm focal length.

Fig. 5
Fig. 5

SBP at each maximum field: (a) NA = 0.45, λ = 820 nm; (b) NA = 0.55, λ = 780 nm; (c) NA = 0.60, λ = 670 nm.

Fig. 6
Fig. 6

Minimum source power at each maximum field: (a) NA = 0.45, λ = 820 nm; (b) NA = 0.55, λ = 780 nm; (c) NA = 0.60, λ = 670 nm.

Fig. 7
Fig. 7

(a) Side view of vignetting; (b) dectector-plane irradiance in the presence of vignetting.

Fig. 8
Fig. 8

Vignetted transmission for systems of maximum parallelism.

Fig. 9
Fig. 9

(a) Maximum parallelism; (b) minimum source power versus lens focal length.

Fig. 10
Fig. 10

Aggregate data rate at various lens focal lengths with (a) no mass constraint and (b) mass constraint.

Equations (7)

Equations on this page are rendered with MathJax. Learn more.

z = c r 2 { 1 + [ 1 + ( 1 + κ ) c 2 r 2 ] 1 / 2 } + a 2 r 2 + a 4 r 4 + a 6 r 6 .
S P η min [ M l T , 1 ] min [ M l T , 1 ] [ 1 - ISI ( Δ ) ] ,
N k B ,
SNR norm ( 1 ) min [ Δ 2 , 1 ] × [ 1 - ISI ( Δ ) ] ,
SNR norm ( 2 ) min [ Δ 2 , 1 ] × [ 1 - ISI ( Δ ) ] × 1 Δ ,
W 220 P 1 4 E 2 ϕ n ,
W 222 1 2 E 2 ϕ .

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