Optical integrated circuit device array having bi-directional characteristics and optical system using the same

A bi-directional optical integrated circuit device array, comprising:

• a plurality of bi-directional optical integrated circuit unit devices that are two-dimensionally (2D) integrated on a substrate, wherein each of the bi-directional optical integrated circuit unit devices includes:
• a laser light source integrated on the substrate to emit light of a single wavelength;
• and
• a bi-directional optical device integrated on the substrate, the bi-directional optical device to:
• amplify light output from the laser light source,
• transmit amplified light to a surrounding environment via an antenna, and
• receive light reflected by the surrounding environment through the antenna,
• wherein the bi-directional optical device includes:
• an optical amplifier to amplify light output from the laser light source and to amplify light reflected by the surrounding environment;
• an optical receiver to detect amplified reflected light from the optical amplifier;
• a first waveguide optically connecting the laser light source and the optical amplifier;
• a second waveguide, separate from the first waveguide, optically connecting the optical receiver and the optical amplifier;
• an isolator on the first waveguide between the laser light source and the optical amplifier;
• and
• a bandpass filter on the second waveguide between the optical receiver and the optical amplifier.

An optical system for analyzing a target, the optical system comprising:

• a bi-directional optical integrated circuit device array having the target within its field of view, the bi-directional optical integrated circuit device array including a plurality of bi-directional optical integrated circuit unit devices integrated on a substrate in a two-dimensional pattern;
• and
• a lens between the target and the bi-directional optical integrated circuit device array,
• wherein each of the bi-directional optical integrated circuit unit devices includes:
• a laser light source to emit light of a single wavelength;
• and
• a plurality of bi-directional optical devices to transmit light emitted from the laser light source to the target through the lens and to receive light reflected by the target through the lens,
• wherein each of the bi-directional optical devices includes:
• an optical amplifier to amplify light from the laser light source, to transmit amplified light towards the target, and to amplify light reflected by the target;
• and
• an optical receiver to detect amplified reflected light output by the optical amplifier,
• a first waveguide optically connecting the laser light source and the optical amplifier;
• a second waveguide, separate from the first waveguide, optically connecting the optical receiver and the optical amplifier;
• an isolator on the first waveguide between the laser light source and the optical amplifier;
• and
• a bandpass filter on the second waveguide between the optical receiver and the optical amplifier.