But according to coupled modes diffusion theory,2n bright loops that are adjacent to the n bright loops corresponding LP_(0n) modes will couple into LP_(0n) modes,then be absorbed.

• 但根据耦合模扩散理论,与LP0n模对应的一组亮环最邻近的2n个亮环所携带的功率能耦合进LP0n模,被纤芯吸收。