Functions and normal working ranges of bias current, cooling current, and back facet current of OA boards on BWS 1600G

The bias current of an OA board is actually the drive current of the laser on the OA board. A laser is actually a photodiode. Therefore, the drive current is also called bias current. Due to the differences between pump lasers, the bias current vary greatly even for lasers of the same type (for example, 100 mW 980 nm pump lasers). The bias current ranges for different pump lasers are as follows:
100 mW 980 nm pump lasers: < 250 mA
150 mW 980 nm pump lasers: < 350 mA
160 mW 1480 nm pump lasers: < 700 mA

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