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激光相位调制器的特点：本系列激光相位调制器通过电光效应实现对激光的相位进行调制，可用于产生激光边带信号等用途?？筛菔褂贸『希≡窆庀笋詈鲜交蛘咦杂晒獯ツＪ??？墒视糜诖蠊β?strong>激光调制。
If the input polarization is parallel to the optical axis the optical phase can be modulated by applying different electric fields to the crystal. Applying an AC-Voltage results in a time-dependant phase and thus in a frequency shift in the output signal. Next to the carrier frequency fc sidebands appear D withf= fc ±n·fM （fM= frequency of the electric field, n∈N）. The a plitude of the sidebands with respect to the carrier can be influenced by the amplitude of the applied voltage and are given by the Bessel functions. Many application, e.g. in quantum optics like Pound-Drever-Hall set-ups or laser frequency stabilization rely on such well-defined triplets of frequency.