Modulation of light refers to changing parameters of light wave such as amplitude, intensity, and phase, frequency, polarization, etc. to make it carry message.
光辐射的调制是指改变光波振幅、强度、相位或频率、偏振等参数使之携带信息的过程。
A type of electronic modulation in which the phase of a carrier wave is varied in order to transmit the information contained in the signal.
相位调制，调相：一种电子调幅，为了传递包含在信号中的信息，而使载波的相位改变。
The system adopts direct digital synthetic (DDS) technology for building the sine wave generator to realize continuous regulation of amplitude, frequency and phase modulation.
系统采用直接数字合成（DDS）技术构建正弦波发生器，实现幅值、频率、相位等连续调节；
Several parameters related to modulation wave, such as wave vector, wave length and argument phase etc.
详细地讨论了有关调制波的若干参数，如波矢量、波长、幅角、位相等。
In frequently used methods, sine wave is used as carrier with amplitude modulation (am), frequency modulation (FM) and phase modulation (PM) implied.
常用的调制方式使用正弦波作为载波并对其进行幅度调制(AM)和角度调制即调频(FM)或调相(PM)。
Modulation methods primarily through changes in the rate of sine wave, phase and frequency to transmit information.
调制的方法主要是通过改变正弦波的幅度、相位和频率来传送信息。
Besides, the limitation of RZ-DPSK regeneration utilizing self-phase modulation is discussed. The initial conditions using four-wave mixing to achieve regeneration is given.
同时对于RZ - DPSK信号，研究了利用自相位调制实现再生的局限性，给出了利用四波混频实现再生的初始条件。
Comparison of crosstalk induced by four-wave mixing and cross-phase modulation in Si-EDFAs and Te-EDFAs is carried out using semiclassical theory.
文中用半经典理论分析比较了这两种光纤中由于四波混频和互相位调制引起的串扰。
The variation behavior of phase retardation of wave-plate with temperature was introduced, and the electro-optic modulation method was put forward to measure the phase retardation.
介绍了波片的相位延迟量随温度的变化行为，并提出一种测量相位延迟量的方法。
A format conversion from a non-return-to-zero (NRZ) signal to return-to-zero (RZ) signal is presented based on four-wave mixing (FWM) and cross-phase modulation (XPM) in a silicon optical waveguide.
基于硅光波导的四波混频(FWM)和交叉相位调制(XPM)效应，提出非归零码(NRZ)到归零码(RZ)的光调制格式转换。
A format conversion from a non-return-to-zero (NRZ) signal to return-to-zero (RZ) signal is presented based on four-wave mixing (FWM) and cross-phase modulation (XPM) in a silicon optical waveguide.
基于硅光波导的四波混频(FWM)和交叉相位调制(XPM)效应，提出非归零码(NRZ)到归零码(RZ)的光调制格式转换。
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