发现在不同的注入光强度和波长下,激光器的调制带宽和弛豫振荡峰频率会发生变化。
The modulation bandwidth and the relaxation oscillation frequencies of the laser are quite different at different injection powers and wavelengths.
设计并研制了一套基于光反馈效应的直接频率调制激光二极管光电探测系统。
An optoelectronic detection system based on the optical feedback effect in a direct frequency modulated laser diode is developed.
它同时对激光频率和样品的塞曼效应进行调制,然后通过双解调来提取微弱的光谱信号。
In this spectroscopy, both laser frequency and Zeeman effect of a sample are modulated, and then the signal with high signal to noise will be obtained by double demodulation.
也可以用声光效应实现激光强度的调制,而用电光效应来控制器件的中心频率。
It can also modulate the laser intensity by acoustooptic effect, and control the central frequency of the device.
给出了适于分析DF B激光器稳态特性的数值模型和分析振幅及频率调制响应特性的解析模型。
A numerical model for steady state analysis and analytical expressions for the AM and FM modulation responses of DFB lasers are presented.
分析了在直接频率调制下,激光二极管中的光反馈效应,探讨了振动微小位移和速度的理论模型。
By analyzing the direct frequency modulation and optical feedback effect of laser diode, a theoretical model for measuring small vibration displacement and velocity is discussed.
文中运用三层速率模型,对小信号调制下单量子阱激光器的频率响应进行模拟分析。
This paper presents a simulative method to solve the frequency response of single quantum well laser diode under small signal modulation.
本文讨论了注入锁定半导体激光器的调制特性,给出了功罕响应和动态频率飘移的表达式。
The modulation properties of an injection-locked semiconductor laser are discussed. The expressions for power responses and the dynamic frequency shifts of the laser are prented.
利用数值模拟的方法研究了电流调制下偏置电流和调制频率对垂直腔面发射半导体激光器(VCSEL)混沌动力学特性的影响。
The influence of bias current and modulation frequency on chaos dynamics of vertical-cavity surface-emitting laser (VCSEL) subject to direct current modulation is investigated by numerical simulation.
理论分析表明频移幅度与调制频率、时间常数和半导体激光器的偏置电流等物理量有关。
It is made clear through the theoretical analysis that the frequency shift is dependent on the modulation frequency, thermal time constant, bias current of the laser diode and so on.
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。
In this paper, the measurement method of high frequency brightness modulation laser phase for mechanic surface microcosmic appearance is given out.
为了提高激光多普勒调制器调制频率的稳定度,通过从光学、机械、电子学等方面的优化,对影响多普勒调制器的各种因素进行了深入的研究。
In order to improve the frequency stabilization of the Doppler modulator, a series of affecting factors are considered in depth and optimized in the aspects of optics, mechanics and electronics.
量子阱激光器具有良好的小信号调制频率响应,能作为高速光通信光源采用直接调制方式进行信号传输。
Quantum well laser diodes are of high modulation frequency response. They can be used as light sources and be directly modulated for high bit rate optical communications.
实验数据表明,光强调制度随激光器偏置电流的增加而加深,随调制频率的升高而减小。
Experimental data show that the intensity modulation depth increases with the bias current of LD. When the modulation frequency increases, the intensity modulation depth decreases.
频率可调激光器:可调制式激光器也就是脉冲式激光器。
Frequency modulated laser module: Frequency modulated laser module is pulsed laser module.
内调制式激光器不需要外接信号,加上工作电压后,激光器即以脉冲方式工作,其工作频率根据用户设计、定做。
The second does not need external signal; it works in the form of pulses with operating voltage. Pulsed laser module generally require customized.
内调制式激光器不需要外接信号,加上工作电压后,激光器即以脉冲方式工作,其工作频率根据用户设计、定做。
The second does not need external signal; it works in the form of pulses with operating voltage. Pulsed laser module generally require customized.
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