Nippon Telegraph and Telephone Corporation

Ntt Electronics Corporation

Atsushi Wakatsuki

Tadao Ishibashi

An opto-electronic integrated circuit includes an optical splitter (A,B) formed on a substrate, the optical splitter branching an input optical signal into N (N is an integer of 2 or more) optical signals, and outputting the optical signals, and N optical phase modulators (A-D) formed on the substrate for the respective optical signals output from the optical splitter, the optical phase modulators adjusting the phases of the optical signals based on a phase modulation characteristic in which the phase change amount changes depending on the wavelength of light, and output the optical signals.

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Tokyo, Japan

Atsushi Wakatsuki