FIELD

The subject matter herein generally relates to optical communication modules having transparent packaging materials and the manufacturing method thereof.

BACKGROUND

An optical communication network has the characteristics of low transmission loss, high data confidentiality, immunity to EMI, and wide bandwidth, and is a main communication method today. The optical communication module is an important basic component in optical communication technology. The optical communication module is used to receive optical signals from an optical network and convert the optical signals into electrical signals. The optical communication module can also convert electrical signals into optical signals, and then transmit the optical signals outward through the optical network.

In order to improve the service life and the reliability of signals of the optical communication module, the conventional optical communication module is assembled in a vacuum. The optical communication module, the printed circuit board, and the electronic and optical components are sealed in a metal housing to keep the inside of the metal housing in a vacuum, thereby preventing the electronic and optical components from deteriorating due to the erosion of moisture and dust, etc. However, it has led to an increase in manufacturing cost.

Moreover, a vacuum environment makes it difficult to weld an optical fiber connector to the metal shell, and align the optical fiber with the optical component.

