Mitsubishi Heavy Industries Technical Review
    Vol. 57 No. 1 (2020)   New Products & Technologies
    Technical Papers

    Beam Transmission Technology by Photonic Crystal Fiber to Realizes High-precision and High-efficiency Laser Processing Technology

    Takehisa Okuda,
    Yasuyuki Fujiya,
    Saneyuki Goya,
    Akiko Inoue

    Since April 2014, Nippon Telegraph and Telephone Corporation (NTT) and Mitsubishi Heavy Industries, Ltd. (MHI) have applied NTT laboratory's research and development results in the information and communication technology (ICT) field to our energy/environment, traffic/transportation and other social infrastructure products, as well as to domestic and overseas production sites and on-site construction work, and have promoted research and development collaboration with the aim of creating new value. As one of the achievements thereof, we succeeded in transmitting kW-class high-power single-mode laser beam over several tens of meters while maintaining high quality suitable for precision processing by combining photonic crystal fiber (PCF), one of NTT's optical fiber technologies for communication, with our high-power laser processing technology.