Patent ID: 9634463
Date: 2017-04-25
CPC Classifications: G02B,H01S

Claim:
1. A process of assembling an optical module having an amplifier unit, a coupling unit provided in one side of the amplifier unit, and another coupling unit provided in another side of the amplifier unit opposite to the one side, the amplifier unit installing a semiconductor optical amplifier (SOA) therein, the coupling unit receiving an external optical fiber that is optically coupled with the SOA, the another coupling unit installing an optical isolator that cuts light coming from the SOA but passing light going to the SOA, the process comprising steps of: activating the SOA that generates a spontaneous emission therefrom; aligning the coupling unit with the SOA at a position where the spontaneous emission of the SOA detected through the external optical fiber becomes a maximum or exceeds a preset threshold; providing a test beam to the SOA through the another coupling unit and the optical isolator; and aligning the another coupling unit with the SOA at a position where the test beam provided to the SOA through the another coupling unit, amplified thereby, and detected through the coupling unit and the external optical fiber becomes a maximum.