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1. |
The thulium doped fiber laser when pumped with alexandrite laser output at 0.786 μm, the laser emits a?# |
A. | 0.6 μm |
B. | 0.8 μm |
C. | 2.3 μm |
D. | 1.2μm |
Answer» B. 0.8 ‚âà√≠¬¨‚à´m | |