The relationship between the intensity modulation depth of light source and the modulation frequency and injection current of laser diode (LD) is studied in a LD interferometer with a photothermal modulation which is used for optical fine measurement.
本文研究了用于光学精密干涉测量的光热光频调制半导体激光干涉仪中 ,光强调制度与调制频率和激光器注入电流的关系。
Based on the physical model of a laser diode (LD) modulated utilizing photothermal effect, the relations of the photothermal intensity modulation depth of the LD with the modulation frequency and injection current are theoretically and verify experimentally deduced.
由光热调制半导体激光器物理模型出发 ,从理论上推导出半导体激光器结温变化与相关物理量的关系式 ,并从光热调制实验中得出光强调制同调制频率及半导体激光器偏置电流的关系 ,为选择半导体激光器恰当的光热调制参数 ,以降低光强调制干扰 ,从而实现纳米精度干涉测量提供重要依据。
At present, the researches emphasis on the sensor are based on light intensity modulation, which makes sensor have low accuracy and poor stability because light source and optical path disturbance have a great impact on light intensity modulation.
目前对其研究都是基于光强调制,光强调制本身受光源扰动和光路扰动影响较大,致使传感器测量精度低,稳定性差。
In this paper, the measurement method of high frequency brightness modulation laser phase for mechanic surface microcosmic appearance is given out.
提出了用高频光强调制、同源频率合成、软件鉴相的激光相位微距测量方法测量表面微观轮廓高度。
Research on the Reflective Intensity Modulated Fiber Optic Accelerometer;
反射式光强调制型光纤加速度计的设计
The Intelligent Turbidimeter Employing Technology of Modulating Light Magnitude of Lamp House;
光源光强调制技术的智能浊度仪的研究
The Design and Research on the Vibration Measurement System by the Refelective Intensity-Modulated Fiber;
反射式光强调制光纤测振系统的设计与研究
Research on High-Precision Distance Measurement Technique of Laser Triangle Method with Sine-wave Light Intensity Modulation;
正弦波光强调制式激光三角法高精度测距技术研究
Research on the Techniques of Color Mixing and Modulation of the Luminous Intensity of Large Screen Laser Display System;
大屏幕激光扫描显示系统混色与光强调制技术研究
Development and Application of Intensity Modulated Photocurrent Spectroscopy and Intensity Modulated Photovoltage Spectroscopy
强度调制光电流谱/光电压谱及其应用
A Laser Intensity-Stabilizing System with an AOM
采用声光调制技术的激光光强稳定系统
The cursor's color, highlighted and non-highlighted text can also be customized.
该光标的颜色,并突出非文也强调定制.
Simulation and Emulation of Reflective Intensity Type Modulating Fiber Optic Sensors;
强度调制光纤传感器数值模拟与仿真
Nonlinear Evolution of the Small-scale Modulations Riding on an Intense Optical Beam;
强光束小尺度调制的非线性演化规律
Research on the Light Intensity-modulation Optic-fiber SPR System
基于强度调制的光纤SPR系统的研究
Modulation of feedback strength to enhance the security of chaos optical communication system
反馈强度调制增强混沌光通信的保密性
Influence of Self-Correlation Time on Intensity Correlation Function of the Single-Mode Laser;
调制噪声对单模激光光强相关函数的影响
Analysis on Intensity Modulation Characteristics for Optic Fiber Pair of Reflective Fiber Optic Sensor
反射式光纤传感器光纤对强度调制特性分析
Beam Profile Partitioning Based Spatial Modulation and Its Spectral Effect of Filamentation Induced by Intense Laser
基于光斑分割的光场空间调制及其强场诱导光丝光谱效应
Generation of Optical Vortices With Intensity Modulation Via Advanced Sprial Phase Plate;
利用改进的螺旋相位板产生强度调制光学涡旋
Light intensity correlation time varying with colored noises under signal modulation
信号调制下光强关联时间随色噪声变化的规律
Sensing theory of fiber optic intrusion sensor based on multimode fiber intensity modulation
多模光纤强度调制型扰动传感器传感原理