In the scheme, FSK-FDM technique is used in subcarrier modulation, and the EDFA's supervisory information is transmitted by optical intensity modulation.
该方案利用频移键控频分复用（FSK FDM）技术进行声频副载波调制，通过光强度调制实现远程在线EDFA监控信息随主信号的传输。
It is convenient to change the optical intensity of the sidebands by tuning the DC bias voltage while the microwave modulation frequency and power are fixed.
当微波调制频率及功率一定时，可方便地调节直流偏置电压来改变各阶光波的强度。
This paper presents an optical communication system algorithm with intensity modulation and nonlinear heterodyne detection.
本文提出一种采用光强度调制非线性外差检测的传输方案。
When the external electric field is given, the maximum modulation instability growth rates will increase to a maximum then decreases as the incident optical intensity enhances.
在外加电场给定时，调制不稳定性增长率的最大值随入射光强的增大先达到一峰值然后又减小。
In this paper, a reflective intensity modulation optical fiber sensor with simple structure and easy design has been introduced.
本文介绍了一种结构简单、易于实现的反射式强度调制型光纤传感器。
A cantilever is used to block the light reflected into optical fiber, and the vibration signal can be measured through the intensity modulation.
使用悬臂梁来遮挡反射回光纤的光，用光强度调制来实现振动信号的测量。
We suggested to stable the output light intensity by using the bistable optical device and use this new device to measure the density of liquid by refractive index modulation sensor.
我们提出采用光学双稳装置来稳定光源输出功率，并将它用于折射率调制型光纤传感器测量液体浓度的实验中。
Abstract : A new type of optical signal transmission system based on organic light-emitting devices (OLED) has been investigated using direct light intensity modulation method.
摘要 ：采用直接光强调制的方法，建立了一种新型有机电致发光器件（OLED）的光电信号传输体系，研究了发光层掺杂、发光面积和预置电压对OLED响应速度的影响。
Abstract : A new type of optical signal transmission system based on organic light-emitting devices (OLED) has been investigated using direct light intensity modulation method.
摘要 ：采用直接光强调制的方法，建立了一种新型有机电致发光器件（OLED）的光电信号传输体系，研究了发光层掺杂、发光面积和预置电压对OLED响应速度的影响。
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