| 摘要 |
<p>A twin coupler system couples a multimode pump power signal from a pump fiber (2200,2210,2220) to an optical information carrying double-clad signal fiber (2110,2120). The twin coupler system includes first and second optical couplers (2300,2400) and a mode scrambler (2230). The first optical coupler (2300) couples the pump fiber (2210) to the optical signal fiber (2110) to transfer outer modes of the pump power signal from the pump fiber into the optical signal fiber. The mode scrambler (2230) scrambles the modes of the pump power signal remaining in the pump fiber beyond the first optical coupler. The second optical coupler (2400) couples the pump fiber (2220) to the optical signal fiber (2120) to transfer outer modes of the scrambled pump power signal from the pump fiber into the optical signal fiber. <IMAGE></p> |
