At the receiver, the modulated optical carrier can be examined from a frequency filter to render target detection.
在接收端，通过频率滤波实现对编码信号的提取，由编码信号的信号处理实现激光雷达水下目标探测。
A novel scheme for optical millimeter (mm)-wave generation with optical carrier suppression(OCS) modulation by external modulator in a radio-over-fiber (ROF) system was proposed.
提出了一种改进的光载波抑制产生光毫米波的方法。
The small signal analysis of laser diode type all optical wavelength converter is presented using carrier depletion, and the frequency response function is given.
理论上基于载流子消耗机制，对激光器型波长转换器进行了小信号分析，给出了频率响应函数。
To improve its performance, a carrier modulation and double light route compensation are necessary for detecting faint optical power signals.
为改善传感器的性能，微弱光强信号的检测需要载波调制和双光路补偿。
In this case the information source provides an electrical signal to a transmitter comprising an electrical stage which drives an optical source to give modulation of the lightwave carrier.
在这种情况下，信源给发射机提供一个电信号，发射机中的电路驱动光源以实现对光载波的调制。
The effect of carrier fluid, surfactant, magnetizable particle, polishing abrasives and pH value on the finishing surface of optical glass is described.
讨论了适用于光学玻璃抛光的磁流变液的配制机理及磁流变液对光学玻璃抛光效果的影响因素。
The SCH layer can provide optical confinement, but at the same time, it also affects the distribution of the carrier(especially to the electrons in conduction band).
限制层在提供光学限制的同时，对载流子（主要是导带电子）分布也有影响。
It compares the pilot distance protection with power line carrier (PLC) in the single or double frequency and the differential protection with optical fiber in the loop or chain connection.
比较单频率与双频率载波通道的纵联距离保护和环状与链状连接光纤通道的差动保护方案。
The invention relates to an optical information carrier for carrying information to be read out by means of an optical beam (9).
本发明涉及一种用于承载信息以便利用光束（9）来读取的光学信息载体。
Digital phase generated carrier (PGC) is the key method for larger dynamic and high sensitivity detection of optical fiber interferometers.
数字化相位生成载波(PGC)方法是实现光纤干涉仪大动态范围、高精度信号检测的主要手段。
Gaseous helium is used as a coolant during the drawing of optical fibers, as a carrier gas for chromatography, and as a leak detection gas in a variety of industries.
气态氦在光学纤维拉制中用作冷却剂，在色谱仪中用作运载气体，在许多工业中用作检漏气体。
Carrier class quality, with 100% testing of components, and Integrated solution of the mechanical, optical, and other modules.
100%测试的组件，集机械、光学系统及其它模块的集成解决方案使该公司具备了运营商级服务质量。
The erasable optical disk with high recording density, high stability, high data transfer rate, high carrier-noise ratio and low error rate arc the main points in the research and development.
当前的研究与开发的重点是具有高记录密度，数据传输速率快、稳定性好、载噪比大和误码率低的可擦型光盘存储材料。
Further analysis shows that it is caused by the enhancement of the threshold current density and threshold carrier density in terms of optical-gain spe.
进一步分析认为，这是因为条宽变窄导致器件阈值电流密度、阈值载流子密度变大造成的。
There are many communication modes in remote monitoring system, such as optical fiber, wireless transmission, cable mode, power line carrier, etc.
远程在线监测系统可以选择多种通信方式：光纤、无线、电缆、电力线载波等等。
As carrier network, optical transport network must be built prior to the 3g service network.
作为业务承载网络的3g光传送网，必须要先于业务网络的建设而建设。
Terabit/s multi-carrier / single-carrier optical transmission systems.
单载波及多载波太比特光传输系统；
The invention further relates to an optical master (30) for manufacturing an optical data carrier, said optical master (30) comprising such a thermochromic layer (20, 32).
本发明进一步涉及一种用于制造光学数据载 体的光学母盘（30），其包括这种热变色层（20，32）。
The main results obtained are as follows:1. The ultra-fast characteristics of photoconductive switches were mainly determined by the optical pulse width and the carrier lifetime of the chip material.
光电导开关的超快特性主要由触发光脉冲脉宽和开关芯片材料载流子复合寿命决定。
Under a certain deliver distance and the light power, the different sub-carries number to exist a best optical modulation index, making the system's carrier-to-noise ratio biggest.
一定的传输距离和发射光功率情况下，不同的子载波数存在一个最佳的光调制指数，使得系统载噪比最大；
Under a certain deliver distance and the light power, the different sub-carries number to exist a best optical modulation index, making the system's carrier-to-noise ratio biggest.
一定的传输距离和发射光功率情况下，不同的子载波数存在一个最佳的光调制指数，使得系统载噪比最大；
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