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1)  intensity modulation
光强调制
1.
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。
2.
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。
2)  light intensity modulation
光强调制
1.
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。
3)  optical amplitude modulation
光强度调制
4)  light intensity adiuster
光强调制器
5)  electrooptical light intensity modulator
电光光强调制器
6)  high frequency brightness modulation
高频光强调制
1.
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。
补充资料:强调
1.特别着重或着重提出。
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