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Kenichi IGA, Toshihiko BABA, Hitoshi KAWAGUCHI, Setsuko MURATA, Masanobu OKAYASU, Satoki KAWANISHI, Osamu ISHIDA, Masayuki IZUTSU. "CLEO'91/QELS'91 REPORT II. Semiconductor Lasers, Optical Communications, O-E Devices." The Review of Laser Engineering 19.7 (1991) 668-695