Ranging apparatus, optical integrated circuit, and ranging system

An optical integrated circuit comprising:

• a light source unit configured to generate chirped light;
• a scanner unit that has pixel arrays each including a plurality of pixels connected by one waveguide, the pixels being arranged at a prescribed pitch in a first direction in the same direction as that of the waveguide;
• and
• a splitting detection unit configured to supply transmission light obtained by splitting the chirped light to the scanner unit and detect received light from the scanner unit,
• wherein
• the scanner unit includes a plurality of channels, the pixel array serves as one channel, and
• the plurality of channels are arranged in a second direction crossing the first direction, and shifted between channels by a prescribed width smaller than the prescribed pitch.

A ranging system comprising:

• an optical integrated circuit, the optical integrated circuit including, a light source unit configured to generate chirped light,
• a scanner unit that has pixel arrays each including a plurality of pixels connected by one waveguide, the pixels being arranged at a prescribed pitch in a first direction in the same direction as that of the waveguide, and
• a splitting detection unit configured to supply transmission light obtained by splitting the chirped light to the scanner unit and detect received light from the scanner unit;
• and
• an external scanner configured to at least carry out scanning in a second direction crossing the first direction,
• wherein
• the scanner unit includes a plurality of channels, the pixel array serves as one channel, and
• the plurality of channels are arranged in the second direction, and shifted between channels by a prescribed width smaller than the prescribed pitch.