探测光及抽运光的偏振对EIT特别是FWM信号有调制作用。
EIT, especially FWM signal can be modulated by the polarization of the probe and the pump fields.
当两台激光器的抽运受到调制而每台激光器的损失不同时，两台激光器输出的强度会出现周期性运动、混沌同步和失去同步的情况。
When both of the lasers are pump-modulated with different losses, the output intensities of the two lasers show periodic motion, chaotic motion, chaotic synchronization and loss of synchronization.
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