多使用放大器减小噪声分两步。
最后，分析了进一步降低功率放大器的功耗、提高效率、提高可靠性，减小功放体积的可能性。
Finally, the author analyzes the possibility to cut down power waste of amplifier further, improve the efficiency and reliability, decrease the volume of power amplifier.
电路采用电容负反馈互导放大器(CTIA)及相关双取样(CDS)结构，有利于减小电路的噪声。
The adoption of capacitor feedback transimpedance amplifier (CTIA) and correlated double sampling (CDS) structure helps to reduce the noise of the circuit.
除了多级光纤放大器(EDFA)使带宽减小，噪声增大，光纤的材料色散也是对WDM系统影响的重要因素。
Besides multistage EDFA making the bandwidth reduced and noise increased, the material dispersion of optical fibers is also an important factor to affect WDM systems.
这种技术在不需要增加功耗的基础上，通过把输出端的失调电压转移到差分放大器的其他节点，从而达到减小输入参考的失调电压的目的。
The technique transfers the offset voltage from the output to other parts of the differential amplifier and can greatly reduce the input-referred offset voltage without extra power consumption.
如果使用双相位锁相放大器测量交变的被测量，误差将减小到全量程的0.4%以内。
By using a double phase lock in amplifier to measure the AC strain, the measurement error can be decreased to 0.4% of the total measurement range.
其优点是可以减少使用运算放大器、电容以及开关的数量，使得SCF面积减小，便于小型化。
The advantage of the new method is that the number of ICOA, capacitor and switch and the area of SCF are all decreased.
采用电力电子开关功率放大器取代传统的线性功率放大器，极大地减小了装置的体积和重量。
The weight and volume of the power electronics equipment will be minished greatly by using switch-mode power amplifier instead of the traditional linear power amplifier.
对短脉冲的泵浦光，分析了放大器的瞬态增益特性，泵浦光脉冲和信号光脉冲之间的时延会显著减小放大器的增益。
The transient performance of POFA shows that the gain decreases evidently as the delay-time between the pumping pulse and the signal pulse increases.
激光放大器的放大指数随输入功率上升而减小。
Its amplifying index decreases with the increasing of the input laser power.
为了保证系统的稳定性以及减小系统的输出瞬时过冲，本文设计了输出缓冲级来隔离误差放大器的高阻抗输出节点与通路器件的栅极。
To make sure the stability and lower the transient overshoot of the LDO, a buffer stage is used to isolate the pass element and the output of the error amplifier.
理论研究表明，这些因素的引入将减小光放大器附加到放大光脉冲上的非线性频率啁啾。
The theoretical research show that introduce of these factors will reduce the amplitude of nonlinear frequency chirping imposed on amplified light pulse.
减小探测光输入功率，选取短波长探测光波长，增加半导体光放大器的腔长和模场限制因子以及大的偏置电流可提高转换光消光比；
Meanwhile extinction ratio of converted signal can be improved with low probe power, short probe wavelength, long cavity length, high confinement factor, and large biased current.
在误码率为10-4的情况下，放大器的输入回退约减小了6。
同时指出，光纤拉曼放大器的饱和功率随泵浦功率的增大而减小，相对于后向泵浦方式，增益饱和更容易在前向泵浦方式下产生。
It is shown that the saturation power of FRAs decreases with the pump power, and gain saturation is easier to occur in the forward pump scheme than in the backward pump scheme.
同时指出，光纤拉曼放大器的饱和功率随泵浦功率的增大而减小，相对于后向泵浦方式，增益饱和更容易在前向泵浦方式下产生。
It is shown that the saturation power of FRAs decreases with the pump power, and gain saturation is easier to occur in the forward pump scheme than in the backward pump scheme.
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