相对该方法的随机误差10（-5），无论线偏振器位于反射光路或入射光路中，由它产生的折射率测量误差均可忽略不计。

Compared to the measurement random error (rms ) of the order of 10(-5), the total systematic error caused by the errors mentioned above can be neglect.

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从理论上证明了在具有随机耦合的单模光纤中，偏振度并不随光纤总长度的增加而趋向于零。

The degree of polarization (DOP) in a single-mode fiber with random mode coupling has proved to be impossible to approach zero with increasing fiber length.

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光信号在光纤中传输时，其偏振状态发生随机变化，因此偏振不敏感成为光纤通信系统的光器件的重要要求。

When optical signal propagates in fibers, its polarization varies randomly; so the insensitivity on polarization becomes important requirement in optical communication system.

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