Optical module

An optical module, comprising:

• a circuit board, wherein a surface of the circuit board is disposed thereon with an optical emission chip and an optical reception chip;
• and
• a lens assembly, having a bottom connected to the circuit board and covering the optical emission chip and the optical reception chip;
• wherein:
• the lens assembly comprises a lens assembly body, and a first optical fiber adapter and a second optical fiber adapter that are arranged at a first end of the lens assembly body, wherein the first optical fiber adapter is configured to transmit an emission optical signal, and the second optical fiber adapter is configured to transmit a reception optical signal;
• a distance between a center of the optical emission chip and a center of the optical reception chip, in a direction perpendicular to an optical axis of the first optical fiber adapter and an optical axis of the second optical fiber adapter, is less than a distance between the optical axis of the first optical fiber adapter and the optical axis of the second optical fiber adapter;
• the lens assembly body is formed thereon with a first optical surface, a second optical surface, a third optical surface, a fourth optical surface, a fifth optical surface and a sixth optical surface, wherein the first optical surface faces the first optical fiber adapter;
• the second optical surface faces the first optical surface and the optical emission chip, and is located above the optical emission chip and between the optical axis of the first optical fiber adapter and the optical axis of the second optical fiber adapter;
• the fifth optical surface and the sixth optical surface are located on an optical path from the second optical surface to the first optical surface, the fifth optical surface is capable of transmitting and reflecting the emission optical signal, and the emission optical signal transmitted through the fifth optical surface is transmitted to the sixth optical surface;
• the optical signal transmitted through the sixth optical surface is transmitted to the first optical surface;
• the third optical surface faces the second optical fiber adapter;
• the fourth optical surface faces the third optical surface and the optical reception chip;
• and the optical reception chip is located below the fourth optical surface and between the optical axis of the first optical fiber adapter and the optical axis of the second optical fiber adapter.