Patent ID: 8757898

Claim:
An optical coupling structure, comprising: an optical amplifier array configured to include a plurality of optical amplifiers arranged in an array direction; an optical fiber array configured to include a plurality of optical fibers arranged in the array direction; and an optical coupling system that optically couples the optical amplifier array and the optical fiber array, wherein, in the array direction, the optical coupling system optically couples beams of light signals to an end face of the optical amplifier array obliquely to the end face, and optically couples the beams to an end face of the optical fiber array in parallel with a fiber axis of the optical fiber array, and wherein, in a height direction orthogonal to the array direction, the optical coupling system optically couples the beams to the end face of the optical amplifier array in parallel with a waveguide direction of the optical amplifiers, and optically couples the beams to the end face of the optical fiber array obliquely to the end face of the optical fiber array in the height direction.