Both of these transitions contribute to optical gain.
这些转变都对光学增益有贡献。
We calculated longitudinal confinement factor, threshold gain, optical gain and output power etc through theoretical model.
根据理论模型计算了纵模限制因子、阈值增益、光增益、输出功率等特征参数。
The optical gain and aberration characteristics of immersion lens are analyzed based on FOV and optical gain of optical systems used in laser warning device.
从激光探测告警光学系统的视场和光学增益出发，分析了浸没透镜的光学增益和像差特性。
It shows that the active channel with sizeable optical gain and a substantial increase of the refractive index are promising for the realization of active waveguide tunable laser.
研究表明，室温下有源沟道具有较大的光增益和折射率增量，有望实现可见波段的可调谐有源光波导激光器件。
We find that dispersive properties inside the micro-cavity lead to frequency shift of the defect modes. The defect modes can be amplified as optical gain is introduced into system.
另外，当通过复介电常数的虚部引入光学增益后，我们发现缺陷模在增益介质中被放大，其阈值特性和缺陷折射率的密切相关。
We obtain a optical image amplification with high gain factor of 1583 in doped lithium niobate crystals.
并在掺杂铌酸锂晶体中获得了高信噪比，信号光增益高达1583倍的光像放大。
Theory of fiber optical parametric amplifiers (FOPAs) is introduced and the expression for the gain of FOPAs is deduced from the basic coupled wave equations.
介绍了光纤光学参量放大器的理论，基于耦合波方程推导出光纤光学参量放大器的增益表达式。
The results also show that the performance of this communication system can be affected by background optical, APD gain and modulation extinction ratio.
该通信系统还受背景光、雪崩光电二极管（APD）增益和调制消光比等因素的影响。
The numerical model of the linear optical amplifier (LOA) is built based on the rate equations. The gain clamping characteristics of LOA are simulated.
基于速率方程建立了线性光放大器(loa)的数值模型，模拟了线性光放大器的增益钳制特性。
The noise of an optical receiver consisting of a surface emitting laser amplifier and a detector is enhanced by any lack of gain uniformity.
由表面发射激光放大器和检测器组成的光接收器的噪声因任何增益的非均匀性而增加。
The gain and efficiency improvement of free electron laser by an optical klystron configuration has been studied by one dimensional single-particle model.
采用一维单粒子模型对光学速调管结构目由电子激光器增益和效率的提高进行了研究。
The chirp performance of converted signal in wavelength conversion based on cross gain modulation (XGM) in semiconductor optical amplifier (SOA) was analyzed.
对基于半导体光放大器中交叉增益调制效应的波长转换后信号的啁啾特性进行了分析。
Semiconductor optical amplifier with mix strained quantum well active material and its gain performance are reported.
报道了基于混合应变多量子阱有源材料的半导体光放大器及其增益特性。
The wavelength conversion based on cross gain modulation in a semiconductor optical amplifier (SOA) has been experimentally studied.
对基于半导体光放大器交叉增益调制的波长转换进行了实验研究。
A theoretical model of wavelength conversion based on cross gain saturation in a semiconductor optical amplifier (SOA) has been established.
建立了基于半导体光放大器交叉增益饱和的波长转换的理论模型。
The gain bandwidth of optical parametric chirped pulse amplification pumped by divergent beams has been theoretically studied.
对发散光束抽运的光参量啁啾脉冲放大器的增益带宽进行了系统的理论研究。
Automation: Microprocessor controlled optical bench, digital speed control, automatic gain selection, advanced system check, automatic power saving mode.
自动化：微处理器控制光学台，数字化动镜控制，自动增益选择，高级的系统诊断，自动节电模式。
The achieved results indicate that the gain switching conditions greatly influence the chirp of optical pulses and the compression effect.
理论研究指出激光器的增益开关状态对输出光脉冲的啁啾分布有较大影响，从而影响了脉冲的压缩效果。
The optical modulation characteristics, differential gain (DG), differential phase (DP) and signal-to-noise ratio (S/N) are described as well in this paper.
文中论述了光调制特性、微分增益（DG）、微分相位（DP）、信噪比（S/N）等重要问题。
Amutual pulse injection-seeding scheme is developed to generate tunable dual-wavelength optical short pulses by the use of two gain-switched fabry-perot (F-P) semiconductor lasers.
报道了两个增益开关调制的法布里珀罗半导体激光器互注入锁定实验方案，可产生双波长可调谐光脉冲。
Gain flattened wideband optical amplifiers are the basic devices which will meet a demand for the increase of the capacity of dense wavelength division multiplexing optical communication systems.
宽带增益平坦光放大器是密集波分复用光通信系统提高信息容量的基本需求。
Common gain equalizers include standard optical filter, medium multi-layer thin film filter, fiber grating, and planar waveguide.
现在使用的增益均衡器主要有标准光滤波器、介质多层薄膜滤波器以及光纤光栅和平面光波导等。
Nowadays, the optical pulse used in the OTDM system is often generated by the gain-switched distributed-feedback (GS-DFB) semiconductor laser, which has a large pulse width and negative chirp.
目前常采用GS-DFB半导体激光器作为OTDM系统的光脉冲源，这种脉冲源产生的光脉冲一般较宽。
Gain insensitivity to polarization is a fundamental requirement for SOA in fiber optical communication.
增益对偏振态的无关性是光通信对SOA的基本要求之一。
To avoid the phenomena of photon overlap, many measures such as neutral optical attenuator, gate witch and reducing the gain of PMT, are taken to enhance accuracy of ozone measurements.
为避免产生光子并合现象的产生，可以利用在接收光路上加装中性衰减片、提高光电倍增管开始工作的高度和降低光电倍增管增益等措施来分段测量，提高臭氧测量的精度。
Each optical signal propagating in the WDM optical communications system occupies its own wavelength within the gain spectrum of the optical amplifier.
每一个在WD M光通信系统中传播的光信号在光放大器的增益光谱内都占有其各自的波长。
The polarization characteristics of Travelling-wave semiconductor optical amplifier (TW-SOA) is investigated based on th gain property of active Fabry-Perot resonator.
以有源法布里-珀罗谐振腔的增益特性为基础，研究了行波半导体光放大器的偏振特性。
The wavelength conversion mechanism and the thresholding conversion characteristics of all-optical wavelength converter based on a laser diode are described by the gain saturation effect.
使用半导体激活介质的增益饱和效应，描述了激光器型全光波长转换器波长转换机制及其阈值转换特性。
Experimental research on the optical automatic gain clamping(OAGC) EDFASingle and dual wavelength OAGC experiments are operated with loop cavity scheme.
EDFA自动增益箝制（OAGC）实验研究使用环形腔方案，进行了单波长和双波长OAGC实验。
Experimental research on the optical automatic gain clamping(OAGC) EDFASingle and dual wavelength OAGC experiments are operated with loop cavity scheme.
EDFA自动增益箝制（OAGC）实验研究使用环形腔方案，进行了单波长和双波长OAGC实验。
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