Multi-channel optical receiving module

A multi-channel optical receiving module comprising:

• a bench;
• a first substrate disposed on the bench, the first substrate having grooves;
• optical fibers disposed in the grooves of the first substrate, respectively, the optical fibers transmitting optical signals;
• a first lens disposed on the first substrate to collimate the optical signals;
• a second substrate disposed on the bench at a side of the first substrate, the second substrate spaced apart from the first substrate;
• a light receiving device disposed on the second substrate, the light receiving device receiving the optical signals;
• a second lens disposed over the light receiving device, the second lens focusing the optical signals to the light receiving device;
• a mirror reflecting the optical signals between the first lens and the second lens;
• and
• a block fixing the mirror inclined from a sidewall of the first substrate toward a top surface of the second substrate, the block including through-holes, and the through-holes transmitting the optical signals between the first lens and the second lens without refraction of the optical signals.