Abstract

A method for calculating focal positions in a multibeam optical head by use of a multibeam laser diode, in which conditions for misalignment of the light source are taken into consideration, is introduced. One calculates the focal positions by using the practical characteristics of a monolithic four-beam laser diode and the practical specifications of the optics in an optical head. The results show that each focal position is defocused mainly as a result of curvature of the fields of the lenses. The adaptability of focal positions for various calculated conditions is discussed from the standpoint of depth of focus.

© 2001 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. A. Watabe, T. Tanabe, S. Murata, K. Katoh, “Multi-beam read-verifying optical head for parallel recording,” Jpn. J. Appl. Phys. 32, 5406–5410 (1993).
    [CrossRef]
  2. T. Maeda, H. Koyanagi, “Semiconfocal optical disk readout with one linear-spread beam,” Appl. Opt. 37, 8167–8172 (1998).
    [CrossRef]
  3. D. Botez, J. C. Connolly, D. B. Gilbert, M. G. Harvey, M. Ettenberg, “High-power individually addressable monolithic array of constricted double heterojunction large-optical-cavity lasers,” Appl. Phys. Lett. 41, 1040–1042 (1982).
    [CrossRef]
  4. D. B. Carlin, B. Goldstein, J. P. Bednarz, M. G. Harvey, N. A. Dinkel, “A ten-element array of individually addressable channeled-substrate planner AlGaAs diode lasers,” IEEE J. Quantum Electron. 23, 476–477 (1987).
    [CrossRef]
  5. K. Minakuchi, Y. Bessho, Y. Inoue, K. Komeda, N. Tabuchi, K. Tominaga, A. Tajiri, K. Yodoshi, T. Yamaguchi, “High-power, 790 nm, eight-beam AlGaAs laser array with a monitoring photodiode,” Jpn. J. Appl. Phys. 31, 508–512 (1992).
    [CrossRef]
  6. A. Shima, T. Kadowaki, H. Tada, T. Miura, T. Shiba, M. Miyashita, S. Kageyama, E. Omura, M. Aiga, K. Ikeda, “High-power multi-beam AlGaAs TQW lasers with buried-ridge, stripe structure fabricated by using novel etching stop technique,” 13th IEEE International Semiconductor Laser Conference (Institute of Electrical and Electronics Engineers, Piscataway, N.J., 1992), pp. 98–99.
    [CrossRef]
  7. A. Shima, T. Kadowaki, T. Miura, M. Miyashita, S. Kageyama, M. Aiga, K. Ikeda, “High-power and high-temperature operation of eight-element, monolithic, 780 nm MQW laser diode array on 50 µm centres,” Electron. Lett. 29, 1636–1637 (1993).
    [CrossRef]
  8. D. B. Carlin, J. P. Bednarz, C. J. Kaiser, J. C. Connolly, M. G. Harvey, “Multichannel optical recording using monolithic arrays of diode lasers,” Appl. Opt. 23, 3994–4000 (1984).
    [CrossRef] [PubMed]
  9. R. Katayama, K. Yoshihara, Y. Yamanaka, M. Tsunekane, K. Kayanuma, T. Iwanaga, O. Okada, Y. Ono, “Multi-beam optical disk drive for high data transfer rate systems,” Jpn. J. Appl. Phys. 31, 630–634 (1992).
    [CrossRef]
  10. R. Arai, M. Mizukami, T. Tanabe, K. Katoh, T. Yoshizawa, H. Yamazaki, S. Murata, Y. Tanaka, I. Sato, “Feasibility study on high data transfer rate of 300 Mbit/s with 8-beam laser diode array,” Jpn. J. Appl. Phys. 32, 5411–5416 (1993).
    [CrossRef]
  11. M. Shinoda, K. Kime, “Observation of dynamic wavelength shifts of a four-beam laser diode and study of its adaptability to optical heads,” Opt. Lett. 20, 728–730 (1995).
    [CrossRef] [PubMed]
  12. K. Nishimura, S. Murata, “5-channel magneto-optical recording using a laser diode array,” in Optical Data Storage, Vol. 1 of 1989 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1989), pp. 70–73.
  13. M. Shinoda, K. Kime, “Properties of a two-beam laser diode and focusing characteristics of a two-beam optical head,” Opt. Rev. 1, 188–190 (1994).
    [CrossRef]
  14. M. Shinoda, K. Kime, “Calculation of focal positions in an optical head using a four-beam laser diode,” in Optical Data Storage ’98, S. Kubota, T. D. Milster, P. J. Wehrenberg, eds., Proc. SPIE3401, 210–216 (1998).
    [CrossRef]
  15. T. Fujita, K. Kime, “Optical and mechanical design of magneto-optical disk heads,” in Optical Data Storage ’92, D. B. Carlin, D. B. Kay, eds., Proc. SPIE1663, 114–122 (1992).
    [CrossRef]
  16. K. Patorski, S. Yokozeki, T. Suzuki, “Collimation test by double grating shearing interferometer,” Appl. Opt. 15, 1234–1240 (1976).
    [CrossRef] [PubMed]
  17. A. Oudenhuysen, W. H. Lee, “Optical component inspection for data storage applications,” in Optical Mass Data Storage II, R. P. Freese, M. DeHaan, A. A. Jamberdino, eds., Proc. SPIE695, 206–214 (1986).
    [CrossRef]

1998 (1)

1995 (1)

1994 (1)

M. Shinoda, K. Kime, “Properties of a two-beam laser diode and focusing characteristics of a two-beam optical head,” Opt. Rev. 1, 188–190 (1994).
[CrossRef]

1993 (3)

R. Arai, M. Mizukami, T. Tanabe, K. Katoh, T. Yoshizawa, H. Yamazaki, S. Murata, Y. Tanaka, I. Sato, “Feasibility study on high data transfer rate of 300 Mbit/s with 8-beam laser diode array,” Jpn. J. Appl. Phys. 32, 5411–5416 (1993).
[CrossRef]

A. Shima, T. Kadowaki, T. Miura, M. Miyashita, S. Kageyama, M. Aiga, K. Ikeda, “High-power and high-temperature operation of eight-element, monolithic, 780 nm MQW laser diode array on 50 µm centres,” Electron. Lett. 29, 1636–1637 (1993).
[CrossRef]

A. Watabe, T. Tanabe, S. Murata, K. Katoh, “Multi-beam read-verifying optical head for parallel recording,” Jpn. J. Appl. Phys. 32, 5406–5410 (1993).
[CrossRef]

1992 (2)

R. Katayama, K. Yoshihara, Y. Yamanaka, M. Tsunekane, K. Kayanuma, T. Iwanaga, O. Okada, Y. Ono, “Multi-beam optical disk drive for high data transfer rate systems,” Jpn. J. Appl. Phys. 31, 630–634 (1992).
[CrossRef]

K. Minakuchi, Y. Bessho, Y. Inoue, K. Komeda, N. Tabuchi, K. Tominaga, A. Tajiri, K. Yodoshi, T. Yamaguchi, “High-power, 790 nm, eight-beam AlGaAs laser array with a monitoring photodiode,” Jpn. J. Appl. Phys. 31, 508–512 (1992).
[CrossRef]

1987 (1)

D. B. Carlin, B. Goldstein, J. P. Bednarz, M. G. Harvey, N. A. Dinkel, “A ten-element array of individually addressable channeled-substrate planner AlGaAs diode lasers,” IEEE J. Quantum Electron. 23, 476–477 (1987).
[CrossRef]

1984 (1)

1982 (1)

D. Botez, J. C. Connolly, D. B. Gilbert, M. G. Harvey, M. Ettenberg, “High-power individually addressable monolithic array of constricted double heterojunction large-optical-cavity lasers,” Appl. Phys. Lett. 41, 1040–1042 (1982).
[CrossRef]

1976 (1)

Aiga, M.

A. Shima, T. Kadowaki, T. Miura, M. Miyashita, S. Kageyama, M. Aiga, K. Ikeda, “High-power and high-temperature operation of eight-element, monolithic, 780 nm MQW laser diode array on 50 µm centres,” Electron. Lett. 29, 1636–1637 (1993).
[CrossRef]

A. Shima, T. Kadowaki, H. Tada, T. Miura, T. Shiba, M. Miyashita, S. Kageyama, E. Omura, M. Aiga, K. Ikeda, “High-power multi-beam AlGaAs TQW lasers with buried-ridge, stripe structure fabricated by using novel etching stop technique,” 13th IEEE International Semiconductor Laser Conference (Institute of Electrical and Electronics Engineers, Piscataway, N.J., 1992), pp. 98–99.
[CrossRef]

Arai, R.

R. Arai, M. Mizukami, T. Tanabe, K. Katoh, T. Yoshizawa, H. Yamazaki, S. Murata, Y. Tanaka, I. Sato, “Feasibility study on high data transfer rate of 300 Mbit/s with 8-beam laser diode array,” Jpn. J. Appl. Phys. 32, 5411–5416 (1993).
[CrossRef]

Bednarz, J. P.

D. B. Carlin, B. Goldstein, J. P. Bednarz, M. G. Harvey, N. A. Dinkel, “A ten-element array of individually addressable channeled-substrate planner AlGaAs diode lasers,” IEEE J. Quantum Electron. 23, 476–477 (1987).
[CrossRef]

D. B. Carlin, J. P. Bednarz, C. J. Kaiser, J. C. Connolly, M. G. Harvey, “Multichannel optical recording using monolithic arrays of diode lasers,” Appl. Opt. 23, 3994–4000 (1984).
[CrossRef] [PubMed]

Bessho, Y.

K. Minakuchi, Y. Bessho, Y. Inoue, K. Komeda, N. Tabuchi, K. Tominaga, A. Tajiri, K. Yodoshi, T. Yamaguchi, “High-power, 790 nm, eight-beam AlGaAs laser array with a monitoring photodiode,” Jpn. J. Appl. Phys. 31, 508–512 (1992).
[CrossRef]

Botez, D.

D. Botez, J. C. Connolly, D. B. Gilbert, M. G. Harvey, M. Ettenberg, “High-power individually addressable monolithic array of constricted double heterojunction large-optical-cavity lasers,” Appl. Phys. Lett. 41, 1040–1042 (1982).
[CrossRef]

Carlin, D. B.

D. B. Carlin, B. Goldstein, J. P. Bednarz, M. G. Harvey, N. A. Dinkel, “A ten-element array of individually addressable channeled-substrate planner AlGaAs diode lasers,” IEEE J. Quantum Electron. 23, 476–477 (1987).
[CrossRef]

D. B. Carlin, J. P. Bednarz, C. J. Kaiser, J. C. Connolly, M. G. Harvey, “Multichannel optical recording using monolithic arrays of diode lasers,” Appl. Opt. 23, 3994–4000 (1984).
[CrossRef] [PubMed]

Connolly, J. C.

D. B. Carlin, J. P. Bednarz, C. J. Kaiser, J. C. Connolly, M. G. Harvey, “Multichannel optical recording using monolithic arrays of diode lasers,” Appl. Opt. 23, 3994–4000 (1984).
[CrossRef] [PubMed]

D. Botez, J. C. Connolly, D. B. Gilbert, M. G. Harvey, M. Ettenberg, “High-power individually addressable monolithic array of constricted double heterojunction large-optical-cavity lasers,” Appl. Phys. Lett. 41, 1040–1042 (1982).
[CrossRef]

Dinkel, N. A.

D. B. Carlin, B. Goldstein, J. P. Bednarz, M. G. Harvey, N. A. Dinkel, “A ten-element array of individually addressable channeled-substrate planner AlGaAs diode lasers,” IEEE J. Quantum Electron. 23, 476–477 (1987).
[CrossRef]

Ettenberg, M.

D. Botez, J. C. Connolly, D. B. Gilbert, M. G. Harvey, M. Ettenberg, “High-power individually addressable monolithic array of constricted double heterojunction large-optical-cavity lasers,” Appl. Phys. Lett. 41, 1040–1042 (1982).
[CrossRef]

Fujita, T.

T. Fujita, K. Kime, “Optical and mechanical design of magneto-optical disk heads,” in Optical Data Storage ’92, D. B. Carlin, D. B. Kay, eds., Proc. SPIE1663, 114–122 (1992).
[CrossRef]

Gilbert, D. B.

D. Botez, J. C. Connolly, D. B. Gilbert, M. G. Harvey, M. Ettenberg, “High-power individually addressable monolithic array of constricted double heterojunction large-optical-cavity lasers,” Appl. Phys. Lett. 41, 1040–1042 (1982).
[CrossRef]

Goldstein, B.

D. B. Carlin, B. Goldstein, J. P. Bednarz, M. G. Harvey, N. A. Dinkel, “A ten-element array of individually addressable channeled-substrate planner AlGaAs diode lasers,” IEEE J. Quantum Electron. 23, 476–477 (1987).
[CrossRef]

Harvey, M. G.

D. B. Carlin, B. Goldstein, J. P. Bednarz, M. G. Harvey, N. A. Dinkel, “A ten-element array of individually addressable channeled-substrate planner AlGaAs diode lasers,” IEEE J. Quantum Electron. 23, 476–477 (1987).
[CrossRef]

D. B. Carlin, J. P. Bednarz, C. J. Kaiser, J. C. Connolly, M. G. Harvey, “Multichannel optical recording using monolithic arrays of diode lasers,” Appl. Opt. 23, 3994–4000 (1984).
[CrossRef] [PubMed]

D. Botez, J. C. Connolly, D. B. Gilbert, M. G. Harvey, M. Ettenberg, “High-power individually addressable monolithic array of constricted double heterojunction large-optical-cavity lasers,” Appl. Phys. Lett. 41, 1040–1042 (1982).
[CrossRef]

Ikeda, K.

A. Shima, T. Kadowaki, T. Miura, M. Miyashita, S. Kageyama, M. Aiga, K. Ikeda, “High-power and high-temperature operation of eight-element, monolithic, 780 nm MQW laser diode array on 50 µm centres,” Electron. Lett. 29, 1636–1637 (1993).
[CrossRef]

A. Shima, T. Kadowaki, H. Tada, T. Miura, T. Shiba, M. Miyashita, S. Kageyama, E. Omura, M. Aiga, K. Ikeda, “High-power multi-beam AlGaAs TQW lasers with buried-ridge, stripe structure fabricated by using novel etching stop technique,” 13th IEEE International Semiconductor Laser Conference (Institute of Electrical and Electronics Engineers, Piscataway, N.J., 1992), pp. 98–99.
[CrossRef]

Inoue, Y.

K. Minakuchi, Y. Bessho, Y. Inoue, K. Komeda, N. Tabuchi, K. Tominaga, A. Tajiri, K. Yodoshi, T. Yamaguchi, “High-power, 790 nm, eight-beam AlGaAs laser array with a monitoring photodiode,” Jpn. J. Appl. Phys. 31, 508–512 (1992).
[CrossRef]

Iwanaga, T.

R. Katayama, K. Yoshihara, Y. Yamanaka, M. Tsunekane, K. Kayanuma, T. Iwanaga, O. Okada, Y. Ono, “Multi-beam optical disk drive for high data transfer rate systems,” Jpn. J. Appl. Phys. 31, 630–634 (1992).
[CrossRef]

Kadowaki, T.

A. Shima, T. Kadowaki, T. Miura, M. Miyashita, S. Kageyama, M. Aiga, K. Ikeda, “High-power and high-temperature operation of eight-element, monolithic, 780 nm MQW laser diode array on 50 µm centres,” Electron. Lett. 29, 1636–1637 (1993).
[CrossRef]

A. Shima, T. Kadowaki, H. Tada, T. Miura, T. Shiba, M. Miyashita, S. Kageyama, E. Omura, M. Aiga, K. Ikeda, “High-power multi-beam AlGaAs TQW lasers with buried-ridge, stripe structure fabricated by using novel etching stop technique,” 13th IEEE International Semiconductor Laser Conference (Institute of Electrical and Electronics Engineers, Piscataway, N.J., 1992), pp. 98–99.
[CrossRef]

Kageyama, S.

A. Shima, T. Kadowaki, T. Miura, M. Miyashita, S. Kageyama, M. Aiga, K. Ikeda, “High-power and high-temperature operation of eight-element, monolithic, 780 nm MQW laser diode array on 50 µm centres,” Electron. Lett. 29, 1636–1637 (1993).
[CrossRef]

A. Shima, T. Kadowaki, H. Tada, T. Miura, T. Shiba, M. Miyashita, S. Kageyama, E. Omura, M. Aiga, K. Ikeda, “High-power multi-beam AlGaAs TQW lasers with buried-ridge, stripe structure fabricated by using novel etching stop technique,” 13th IEEE International Semiconductor Laser Conference (Institute of Electrical and Electronics Engineers, Piscataway, N.J., 1992), pp. 98–99.
[CrossRef]

Kaiser, C. J.

Katayama, R.

R. Katayama, K. Yoshihara, Y. Yamanaka, M. Tsunekane, K. Kayanuma, T. Iwanaga, O. Okada, Y. Ono, “Multi-beam optical disk drive for high data transfer rate systems,” Jpn. J. Appl. Phys. 31, 630–634 (1992).
[CrossRef]

Katoh, K.

R. Arai, M. Mizukami, T. Tanabe, K. Katoh, T. Yoshizawa, H. Yamazaki, S. Murata, Y. Tanaka, I. Sato, “Feasibility study on high data transfer rate of 300 Mbit/s with 8-beam laser diode array,” Jpn. J. Appl. Phys. 32, 5411–5416 (1993).
[CrossRef]

A. Watabe, T. Tanabe, S. Murata, K. Katoh, “Multi-beam read-verifying optical head for parallel recording,” Jpn. J. Appl. Phys. 32, 5406–5410 (1993).
[CrossRef]

Kayanuma, K.

R. Katayama, K. Yoshihara, Y. Yamanaka, M. Tsunekane, K. Kayanuma, T. Iwanaga, O. Okada, Y. Ono, “Multi-beam optical disk drive for high data transfer rate systems,” Jpn. J. Appl. Phys. 31, 630–634 (1992).
[CrossRef]

Kime, K.

M. Shinoda, K. Kime, “Observation of dynamic wavelength shifts of a four-beam laser diode and study of its adaptability to optical heads,” Opt. Lett. 20, 728–730 (1995).
[CrossRef] [PubMed]

M. Shinoda, K. Kime, “Properties of a two-beam laser diode and focusing characteristics of a two-beam optical head,” Opt. Rev. 1, 188–190 (1994).
[CrossRef]

M. Shinoda, K. Kime, “Calculation of focal positions in an optical head using a four-beam laser diode,” in Optical Data Storage ’98, S. Kubota, T. D. Milster, P. J. Wehrenberg, eds., Proc. SPIE3401, 210–216 (1998).
[CrossRef]

T. Fujita, K. Kime, “Optical and mechanical design of magneto-optical disk heads,” in Optical Data Storage ’92, D. B. Carlin, D. B. Kay, eds., Proc. SPIE1663, 114–122 (1992).
[CrossRef]

Komeda, K.

K. Minakuchi, Y. Bessho, Y. Inoue, K. Komeda, N. Tabuchi, K. Tominaga, A. Tajiri, K. Yodoshi, T. Yamaguchi, “High-power, 790 nm, eight-beam AlGaAs laser array with a monitoring photodiode,” Jpn. J. Appl. Phys. 31, 508–512 (1992).
[CrossRef]

Koyanagi, H.

Lee, W. H.

A. Oudenhuysen, W. H. Lee, “Optical component inspection for data storage applications,” in Optical Mass Data Storage II, R. P. Freese, M. DeHaan, A. A. Jamberdino, eds., Proc. SPIE695, 206–214 (1986).
[CrossRef]

Maeda, T.

Minakuchi, K.

K. Minakuchi, Y. Bessho, Y. Inoue, K. Komeda, N. Tabuchi, K. Tominaga, A. Tajiri, K. Yodoshi, T. Yamaguchi, “High-power, 790 nm, eight-beam AlGaAs laser array with a monitoring photodiode,” Jpn. J. Appl. Phys. 31, 508–512 (1992).
[CrossRef]

Miura, T.

A. Shima, T. Kadowaki, T. Miura, M. Miyashita, S. Kageyama, M. Aiga, K. Ikeda, “High-power and high-temperature operation of eight-element, monolithic, 780 nm MQW laser diode array on 50 µm centres,” Electron. Lett. 29, 1636–1637 (1993).
[CrossRef]

A. Shima, T. Kadowaki, H. Tada, T. Miura, T. Shiba, M. Miyashita, S. Kageyama, E. Omura, M. Aiga, K. Ikeda, “High-power multi-beam AlGaAs TQW lasers with buried-ridge, stripe structure fabricated by using novel etching stop technique,” 13th IEEE International Semiconductor Laser Conference (Institute of Electrical and Electronics Engineers, Piscataway, N.J., 1992), pp. 98–99.
[CrossRef]

Miyashita, M.

A. Shima, T. Kadowaki, T. Miura, M. Miyashita, S. Kageyama, M. Aiga, K. Ikeda, “High-power and high-temperature operation of eight-element, monolithic, 780 nm MQW laser diode array on 50 µm centres,” Electron. Lett. 29, 1636–1637 (1993).
[CrossRef]

A. Shima, T. Kadowaki, H. Tada, T. Miura, T. Shiba, M. Miyashita, S. Kageyama, E. Omura, M. Aiga, K. Ikeda, “High-power multi-beam AlGaAs TQW lasers with buried-ridge, stripe structure fabricated by using novel etching stop technique,” 13th IEEE International Semiconductor Laser Conference (Institute of Electrical and Electronics Engineers, Piscataway, N.J., 1992), pp. 98–99.
[CrossRef]

Mizukami, M.

R. Arai, M. Mizukami, T. Tanabe, K. Katoh, T. Yoshizawa, H. Yamazaki, S. Murata, Y. Tanaka, I. Sato, “Feasibility study on high data transfer rate of 300 Mbit/s with 8-beam laser diode array,” Jpn. J. Appl. Phys. 32, 5411–5416 (1993).
[CrossRef]

Murata, S.

R. Arai, M. Mizukami, T. Tanabe, K. Katoh, T. Yoshizawa, H. Yamazaki, S. Murata, Y. Tanaka, I. Sato, “Feasibility study on high data transfer rate of 300 Mbit/s with 8-beam laser diode array,” Jpn. J. Appl. Phys. 32, 5411–5416 (1993).
[CrossRef]

A. Watabe, T. Tanabe, S. Murata, K. Katoh, “Multi-beam read-verifying optical head for parallel recording,” Jpn. J. Appl. Phys. 32, 5406–5410 (1993).
[CrossRef]

K. Nishimura, S. Murata, “5-channel magneto-optical recording using a laser diode array,” in Optical Data Storage, Vol. 1 of 1989 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1989), pp. 70–73.

Nishimura, K.

K. Nishimura, S. Murata, “5-channel magneto-optical recording using a laser diode array,” in Optical Data Storage, Vol. 1 of 1989 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1989), pp. 70–73.

Okada, O.

R. Katayama, K. Yoshihara, Y. Yamanaka, M. Tsunekane, K. Kayanuma, T. Iwanaga, O. Okada, Y. Ono, “Multi-beam optical disk drive for high data transfer rate systems,” Jpn. J. Appl. Phys. 31, 630–634 (1992).
[CrossRef]

Omura, E.

A. Shima, T. Kadowaki, H. Tada, T. Miura, T. Shiba, M. Miyashita, S. Kageyama, E. Omura, M. Aiga, K. Ikeda, “High-power multi-beam AlGaAs TQW lasers with buried-ridge, stripe structure fabricated by using novel etching stop technique,” 13th IEEE International Semiconductor Laser Conference (Institute of Electrical and Electronics Engineers, Piscataway, N.J., 1992), pp. 98–99.
[CrossRef]

Ono, Y.

R. Katayama, K. Yoshihara, Y. Yamanaka, M. Tsunekane, K. Kayanuma, T. Iwanaga, O. Okada, Y. Ono, “Multi-beam optical disk drive for high data transfer rate systems,” Jpn. J. Appl. Phys. 31, 630–634 (1992).
[CrossRef]

Oudenhuysen, A.

A. Oudenhuysen, W. H. Lee, “Optical component inspection for data storage applications,” in Optical Mass Data Storage II, R. P. Freese, M. DeHaan, A. A. Jamberdino, eds., Proc. SPIE695, 206–214 (1986).
[CrossRef]

Patorski, K.

Sato, I.

R. Arai, M. Mizukami, T. Tanabe, K. Katoh, T. Yoshizawa, H. Yamazaki, S. Murata, Y. Tanaka, I. Sato, “Feasibility study on high data transfer rate of 300 Mbit/s with 8-beam laser diode array,” Jpn. J. Appl. Phys. 32, 5411–5416 (1993).
[CrossRef]

Shiba, T.

A. Shima, T. Kadowaki, H. Tada, T. Miura, T. Shiba, M. Miyashita, S. Kageyama, E. Omura, M. Aiga, K. Ikeda, “High-power multi-beam AlGaAs TQW lasers with buried-ridge, stripe structure fabricated by using novel etching stop technique,” 13th IEEE International Semiconductor Laser Conference (Institute of Electrical and Electronics Engineers, Piscataway, N.J., 1992), pp. 98–99.
[CrossRef]

Shima, A.

A. Shima, T. Kadowaki, T. Miura, M. Miyashita, S. Kageyama, M. Aiga, K. Ikeda, “High-power and high-temperature operation of eight-element, monolithic, 780 nm MQW laser diode array on 50 µm centres,” Electron. Lett. 29, 1636–1637 (1993).
[CrossRef]

A. Shima, T. Kadowaki, H. Tada, T. Miura, T. Shiba, M. Miyashita, S. Kageyama, E. Omura, M. Aiga, K. Ikeda, “High-power multi-beam AlGaAs TQW lasers with buried-ridge, stripe structure fabricated by using novel etching stop technique,” 13th IEEE International Semiconductor Laser Conference (Institute of Electrical and Electronics Engineers, Piscataway, N.J., 1992), pp. 98–99.
[CrossRef]

Shinoda, M.

M. Shinoda, K. Kime, “Observation of dynamic wavelength shifts of a four-beam laser diode and study of its adaptability to optical heads,” Opt. Lett. 20, 728–730 (1995).
[CrossRef] [PubMed]

M. Shinoda, K. Kime, “Properties of a two-beam laser diode and focusing characteristics of a two-beam optical head,” Opt. Rev. 1, 188–190 (1994).
[CrossRef]

M. Shinoda, K. Kime, “Calculation of focal positions in an optical head using a four-beam laser diode,” in Optical Data Storage ’98, S. Kubota, T. D. Milster, P. J. Wehrenberg, eds., Proc. SPIE3401, 210–216 (1998).
[CrossRef]

Suzuki, T.

Tabuchi, N.

K. Minakuchi, Y. Bessho, Y. Inoue, K. Komeda, N. Tabuchi, K. Tominaga, A. Tajiri, K. Yodoshi, T. Yamaguchi, “High-power, 790 nm, eight-beam AlGaAs laser array with a monitoring photodiode,” Jpn. J. Appl. Phys. 31, 508–512 (1992).
[CrossRef]

Tada, H.

A. Shima, T. Kadowaki, H. Tada, T. Miura, T. Shiba, M. Miyashita, S. Kageyama, E. Omura, M. Aiga, K. Ikeda, “High-power multi-beam AlGaAs TQW lasers with buried-ridge, stripe structure fabricated by using novel etching stop technique,” 13th IEEE International Semiconductor Laser Conference (Institute of Electrical and Electronics Engineers, Piscataway, N.J., 1992), pp. 98–99.
[CrossRef]

Tajiri, A.

K. Minakuchi, Y. Bessho, Y. Inoue, K. Komeda, N. Tabuchi, K. Tominaga, A. Tajiri, K. Yodoshi, T. Yamaguchi, “High-power, 790 nm, eight-beam AlGaAs laser array with a monitoring photodiode,” Jpn. J. Appl. Phys. 31, 508–512 (1992).
[CrossRef]

Tanabe, T.

R. Arai, M. Mizukami, T. Tanabe, K. Katoh, T. Yoshizawa, H. Yamazaki, S. Murata, Y. Tanaka, I. Sato, “Feasibility study on high data transfer rate of 300 Mbit/s with 8-beam laser diode array,” Jpn. J. Appl. Phys. 32, 5411–5416 (1993).
[CrossRef]

A. Watabe, T. Tanabe, S. Murata, K. Katoh, “Multi-beam read-verifying optical head for parallel recording,” Jpn. J. Appl. Phys. 32, 5406–5410 (1993).
[CrossRef]

Tanaka, Y.

R. Arai, M. Mizukami, T. Tanabe, K. Katoh, T. Yoshizawa, H. Yamazaki, S. Murata, Y. Tanaka, I. Sato, “Feasibility study on high data transfer rate of 300 Mbit/s with 8-beam laser diode array,” Jpn. J. Appl. Phys. 32, 5411–5416 (1993).
[CrossRef]

Tominaga, K.

K. Minakuchi, Y. Bessho, Y. Inoue, K. Komeda, N. Tabuchi, K. Tominaga, A. Tajiri, K. Yodoshi, T. Yamaguchi, “High-power, 790 nm, eight-beam AlGaAs laser array with a monitoring photodiode,” Jpn. J. Appl. Phys. 31, 508–512 (1992).
[CrossRef]

Tsunekane, M.

R. Katayama, K. Yoshihara, Y. Yamanaka, M. Tsunekane, K. Kayanuma, T. Iwanaga, O. Okada, Y. Ono, “Multi-beam optical disk drive for high data transfer rate systems,” Jpn. J. Appl. Phys. 31, 630–634 (1992).
[CrossRef]

Watabe, A.

A. Watabe, T. Tanabe, S. Murata, K. Katoh, “Multi-beam read-verifying optical head for parallel recording,” Jpn. J. Appl. Phys. 32, 5406–5410 (1993).
[CrossRef]

Yamaguchi, T.

K. Minakuchi, Y. Bessho, Y. Inoue, K. Komeda, N. Tabuchi, K. Tominaga, A. Tajiri, K. Yodoshi, T. Yamaguchi, “High-power, 790 nm, eight-beam AlGaAs laser array with a monitoring photodiode,” Jpn. J. Appl. Phys. 31, 508–512 (1992).
[CrossRef]

Yamanaka, Y.

R. Katayama, K. Yoshihara, Y. Yamanaka, M. Tsunekane, K. Kayanuma, T. Iwanaga, O. Okada, Y. Ono, “Multi-beam optical disk drive for high data transfer rate systems,” Jpn. J. Appl. Phys. 31, 630–634 (1992).
[CrossRef]

Yamazaki, H.

R. Arai, M. Mizukami, T. Tanabe, K. Katoh, T. Yoshizawa, H. Yamazaki, S. Murata, Y. Tanaka, I. Sato, “Feasibility study on high data transfer rate of 300 Mbit/s with 8-beam laser diode array,” Jpn. J. Appl. Phys. 32, 5411–5416 (1993).
[CrossRef]

Yodoshi, K.

K. Minakuchi, Y. Bessho, Y. Inoue, K. Komeda, N. Tabuchi, K. Tominaga, A. Tajiri, K. Yodoshi, T. Yamaguchi, “High-power, 790 nm, eight-beam AlGaAs laser array with a monitoring photodiode,” Jpn. J. Appl. Phys. 31, 508–512 (1992).
[CrossRef]

Yokozeki, S.

Yoshihara, K.

R. Katayama, K. Yoshihara, Y. Yamanaka, M. Tsunekane, K. Kayanuma, T. Iwanaga, O. Okada, Y. Ono, “Multi-beam optical disk drive for high data transfer rate systems,” Jpn. J. Appl. Phys. 31, 630–634 (1992).
[CrossRef]

Yoshizawa, T.

R. Arai, M. Mizukami, T. Tanabe, K. Katoh, T. Yoshizawa, H. Yamazaki, S. Murata, Y. Tanaka, I. Sato, “Feasibility study on high data transfer rate of 300 Mbit/s with 8-beam laser diode array,” Jpn. J. Appl. Phys. 32, 5411–5416 (1993).
[CrossRef]

Appl. Opt. (3)

Appl. Phys. Lett. (1)

D. Botez, J. C. Connolly, D. B. Gilbert, M. G. Harvey, M. Ettenberg, “High-power individually addressable monolithic array of constricted double heterojunction large-optical-cavity lasers,” Appl. Phys. Lett. 41, 1040–1042 (1982).
[CrossRef]

Electron. Lett. (1)

A. Shima, T. Kadowaki, T. Miura, M. Miyashita, S. Kageyama, M. Aiga, K. Ikeda, “High-power and high-temperature operation of eight-element, monolithic, 780 nm MQW laser diode array on 50 µm centres,” Electron. Lett. 29, 1636–1637 (1993).
[CrossRef]

IEEE J. Quantum Electron. (1)

D. B. Carlin, B. Goldstein, J. P. Bednarz, M. G. Harvey, N. A. Dinkel, “A ten-element array of individually addressable channeled-substrate planner AlGaAs diode lasers,” IEEE J. Quantum Electron. 23, 476–477 (1987).
[CrossRef]

Jpn. J. Appl. Phys. (4)

K. Minakuchi, Y. Bessho, Y. Inoue, K. Komeda, N. Tabuchi, K. Tominaga, A. Tajiri, K. Yodoshi, T. Yamaguchi, “High-power, 790 nm, eight-beam AlGaAs laser array with a monitoring photodiode,” Jpn. J. Appl. Phys. 31, 508–512 (1992).
[CrossRef]

A. Watabe, T. Tanabe, S. Murata, K. Katoh, “Multi-beam read-verifying optical head for parallel recording,” Jpn. J. Appl. Phys. 32, 5406–5410 (1993).
[CrossRef]

R. Katayama, K. Yoshihara, Y. Yamanaka, M. Tsunekane, K. Kayanuma, T. Iwanaga, O. Okada, Y. Ono, “Multi-beam optical disk drive for high data transfer rate systems,” Jpn. J. Appl. Phys. 31, 630–634 (1992).
[CrossRef]

R. Arai, M. Mizukami, T. Tanabe, K. Katoh, T. Yoshizawa, H. Yamazaki, S. Murata, Y. Tanaka, I. Sato, “Feasibility study on high data transfer rate of 300 Mbit/s with 8-beam laser diode array,” Jpn. J. Appl. Phys. 32, 5411–5416 (1993).
[CrossRef]

Opt. Lett. (1)

Opt. Rev. (1)

M. Shinoda, K. Kime, “Properties of a two-beam laser diode and focusing characteristics of a two-beam optical head,” Opt. Rev. 1, 188–190 (1994).
[CrossRef]

Other (5)

M. Shinoda, K. Kime, “Calculation of focal positions in an optical head using a four-beam laser diode,” in Optical Data Storage ’98, S. Kubota, T. D. Milster, P. J. Wehrenberg, eds., Proc. SPIE3401, 210–216 (1998).
[CrossRef]

T. Fujita, K. Kime, “Optical and mechanical design of magneto-optical disk heads,” in Optical Data Storage ’92, D. B. Carlin, D. B. Kay, eds., Proc. SPIE1663, 114–122 (1992).
[CrossRef]

A. Oudenhuysen, W. H. Lee, “Optical component inspection for data storage applications,” in Optical Mass Data Storage II, R. P. Freese, M. DeHaan, A. A. Jamberdino, eds., Proc. SPIE695, 206–214 (1986).
[CrossRef]

K. Nishimura, S. Murata, “5-channel magneto-optical recording using a laser diode array,” in Optical Data Storage, Vol. 1 of 1989 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1989), pp. 70–73.

A. Shima, T. Kadowaki, H. Tada, T. Miura, T. Shiba, M. Miyashita, S. Kageyama, E. Omura, M. Aiga, K. Ikeda, “High-power multi-beam AlGaAs TQW lasers with buried-ridge, stripe structure fabricated by using novel etching stop technique,” 13th IEEE International Semiconductor Laser Conference (Institute of Electrical and Electronics Engineers, Piscataway, N.J., 1992), pp. 98–99.
[CrossRef]

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (15)

Fig. 1
Fig. 1

Schematic diagram of image formation in a multibeam optical head: (a) ideal case, (b) with some imperfection in the optical parts, (c) with a tilt in the multibeam laser diode.

Fig. 2
Fig. 2

Schematic diagram of image formation with astigmatic difference a and source height h c in the laser diode. The focused spot has astigmatic difference Δz and image height h o .

Fig. 3
Fig. 3

Schematic diagram of the optical path layout for calculation of the focal positions.

Fig. 4
Fig. 4

Schematic diagram of the optics for the calculation of the focal positions. The two emission points, θ and θ, are projected to focal points, Pm and Ps, respectively.

Fig. 5
Fig. 5

Calculated results for focal positions in cases 1–4 listed in Table 2 below. Case numbers are given in parentheses. The four focal spots in case 1 are located at the image heights of -30, -10, +10, and +30 µm. In a similar manner, the four focal spots in case 2 are located at image heights of -40, -20, 0, and +20 µm. The results for cases 3 and 4 are shown in the same way. The lengths of the error bars indicate the approximate amounts of astigmatic differences Δz.

Fig. 6
Fig. 6

Calculated results for case 5. Open circles and squares, focal points of the meridional direction (Pm) and the sagittal direction (Ps), respectively. Filled diamonds, focal points after correction of axial displacement Δf s between the LD and the collimator lens to satisfy Eq. (7). Astigmatic difference Δz in the focused spot can be made negligible by correction of Δf s , even if the laser beam originally possessed an astigmatic difference.

Fig. 7
Fig. 7

Spot positions with astigmatic difference a in the laser beam after appropriate correction of Δf s .

Fig. 8
Fig. 8

Calculated results for case 6. Spots 1 and 4 with a wavelength shift of 4 nm move closer by 0.10 µm to spots 2 and 3 as a result of chromatic aberration of the collimator lens and the objective lens.

Fig. 9
Fig. 9

Calculated results for case 7. Spots 2 and 3 with a wavelength shift of 4 nm move away by 0.10 µm from spots 1 and 4 as a result of chromatic aberration of the collimator lens and the objective lens.

Fig. 10
Fig. 10

Calculated results for case 8. Open circles and squares, result for d = +1 µm; filled circles and squares, result for d = +2 µm after axial displacement Δf s to satisfy Eq. (7).

Fig. 11
Fig. 11

Calculated results for case 9 for d = +1 µm. Filled circles and squares, focal points before appropriate correction of Δf s . Open circles and squares, focused points after such a correction to minimize astigmatic differences Δz so the astigmatic difference of spot 4 has the same value as and the opposite sign from spot 1.

Fig. 12
Fig. 12

Calculated results for case 9 for d = -1 µm. Filled circles and squares, focal points before the appropriate correction of Δf s . Open circles and squares, focused points after such a correction to minimize astigmatic differences Δz so the astigmatic difference of spot 1 has the same value as and the opposite sign from spot 4.

Fig. 13
Fig. 13

Calculated results for case 10 for d = +1 µm.

Fig. 14
Fig. 14

Calculated results for case 10 for d = -1 µm.

Fig. 15
Fig. 15

Relationship between the longest spot distance for spots 1–4 and the variable of tilt d. Even if the LD has some tilt and lateral displacement owing to misalignment, a specific tilt angle that minimizes the longest spot distance exists.

Tables (2)

Tables Icon

Table 1 Specifications of Lenses for Calculation

Tables Icon

Table 2 Cases for Calculation of Spot Positionsa

Equations (7)

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

Δfs=Δfm+a,
ho=-M/mBhc,
Pmiδλi, hc, ho, Δfmi=fo+Δfoδλi+Δmoho+Δfcδλi+Δfmi-ΔmchcM2/mB2,
=fo+Δfoδλi+Δmoho+Δfcδλi+Δfs-ai-ΔmchcM2/mB2,
Psiδλi, hc, ho, Δfsi=fo+Δfoδλi+Δsoho+Δfcδλi+Δfs-ΔschcM2,
Δzi=Psiδλi, hc, ho, Δfsi-Pmiδλi, hc, ho, Δfmi.
Δz1=Δz4=-Δz2=-Δz3.

Metrics