| 摘要 |
PROBLEM TO BE SOLVED: To provide a light gain block which is pumped by means of one or more pump input modules. SOLUTION: Each pump input module 200 incorporates a pump source 210, a pump power control circuit, and a bus interface. Each usable pump input module 200 detects the presence and pump power of other usable pump input modules 200 to appropriately adjust its own output power. When the power supplied from each usable pump input module 200 is controlled, the output of a light gain block is maintained at a specific output power level, and at the same time, all the pump input modules 200 bear their share of supplying the required total input pump power. |
