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Competition over Communications: Long-Wavelength Laser Diode

In: General Purpose Technology, Spin-Out, and Innovation

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  • Hiroshi Shimizu

    (Waseda University)

Abstract

As we have discussed, the year 1970 was an important year for the laser diode. That was the year Bell Laboratories achieved the continuous wave operation of laser diode in room temperature and Corning developed the low-loss optical fiber. By chance, the wavelength at which the low transmission loss was achieved, 800 nm band, matched the wavelength of the GaAs substrate laser diode that achieved the continuous wave operation in room temperature. As the previous chapter described, these innovations facilitated the advancement of laser diode R&D into the 1970s and focused R&D attention on optical communication.

Suggested Citation

  • Hiroshi Shimizu, 2019. "Competition over Communications: Long-Wavelength Laser Diode," Advances in Japanese Business and Economics, in: General Purpose Technology, Spin-Out, and Innovation, chapter 0, pages 119-135, Springer.
    • Handle: RePEc:spr:advchp:978-981-13-3714-7_7
    DOI: 10.1007/978-981-13-3714-7_7
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