用傅里叶变换的方法分析了锁模激光器中模式间的相位和振幅涨落对锁模脉冲列特性的影响。
The Fourier transform method has been used to analyze the influence of modal amplitude and phase fluctuations in a mode-locked laser on performance of its output pulse.
用插值法对彩色电视广播测试图中的色差信号进行定量研究,可以同时得到色差信号的相位和模。
Through size-research of the colour difference signals in colour TV-test illustrating picture, the phase and module of colour difference signals call be obtained simutaniously.
分析了相位偏置和光纤的色散对锁模机制的影响,获得了产生稳定超短光脉冲的条件。
The effects of phase bias and group velocity dispersion on mode locking mechanism are analyzed. The operating conditions for stable short pulse generation are obtained.
而在横向偏置相同的条件下,倾角越大,基模电场的相位随频率的变化越平缓,幅度则正好相反。
For a fixed offset, frequency response of the phase of dominant aperture field mode tends to be smoother with the increase of tilt whereas converse conclusion can be drawn for that of the amplitude.
可以证明,其模值与相位之间存在着可以相互转换的关系。
It can be proved that certain relation exists between the amplitude and phase.
基于相位转换技术的多模分频器由于其在工作频率和功耗中能更好地折中而得到广泛的应用。
Multi-modulus divider(MMD) based on phase-switching technology finds wide application due to good trade-off between operating frequency and power consumption.
布喇格结构通常是一种具有连续性波纹相位的周期结构,有良好的选模、选频特性。
Bragg structure is usually a kind of periodic structure with continuous corrugation phase, which has excellent mode selectivity and frequency selectivity properties.
文中证明了:一个时间序列,当其为零相位时方差模最大;
The conclusion is drawn: the maximum variance norm corresponds to a time series with zero phase;
结果表明:原子质心运动导致场相位动力学的周期性演化,场模结构参数决定其周期的大小。
The results show that the motion of atomic mass centre leads to the periodic evolution of the dynamics of the field phase and this period depends on the field mode structure parameter.
同时,针对由齿轮间隙引起的两冲辊之间(即凸、凹模之间)相位角的变化,提出设计角度调整机构的理念。
Meanwhile, it puts forward the conception of Angle adjusting mechanism from the fact that the wheel clearance could lead the changes of phase-angle between two roller.
根据部分相干光的相干模表示法,推导了由部分相干光源所产生光束的相位一空间积Q。
The generalized expression for the phase-space product Q of a beam generated from a partially coherent source is presented by using coherent-mode representation of partially coherent beams.
在双波长钛宝石激光器中通过交叉相位调制实现了飞秒和皮秒脉冲的交叉锁模,得到了被动同步的飞秒和皮秒脉冲。
Passively synchronized femtosecond and picosecond laser pulses are obtained by achieving cross mode-locking induced by cross-phase modulation in a dual-wavelength femtosecond ti: sapphire laser.
由于交叉相位调制与偏振模色散相互作用的平衡,导致了一些诸如孤子自捕获、呼吸子对的现象出现。
Due to the balance of XPM and PMD. Some phenomena appear such as soliton self-trapping and a breather pair.
对多量子阱被动锁模半导体激光器的噪声理论进行了系统的分析,并给出了半导体激光器腔内相位随载流子浓度变化的关系。
In this paper, the noise theory of monolithic multi-quantum-well passively mode-locked laser diodes (MLLDs) is discussed, and the phase variation curve with carrier population of MLLDs is found.
通过如上性能的分析和测试,提出了降低啁啾光纤光栅器件时延波动、相位波动,优化其偏振模色散与偏振相关损耗的方法。
Through these measurement and analyse, bring forward the method to reduce the chirp FBG device's group delay ripple, phase ripple and optimize it's PMD and PDL.
模切采用电动360度相位调整。
Grinding-cutting adopt electric 360 degree phase adjustment.
最后分析了交叉相位调制效应对波分复用系统中一阶偏振模色散补偿的影响。
Finally the effect of XPM on first-order PMD compensation in WDM systems is analyzed.
与计模法有关的半相位移关系得到了完善。
Unified half phase shift relations related to the above rule are improved and completed.
我们讨论了相位消相干对两模热场纠缠的影响,并且发现量子擦除过程能够把存在于原子和场中的部分纠缠转移到初始时的两模热场。
It is found that quantum erasing process can transfer part of entanglement between the atom and fields to two mode fields initially in the thermal states.
对空间耦合的两台多模激光场的强度和相位的动力学行为进行了理论分析。
The dynamical properties of two spatially coupled multi-mode lasers are investigated theoretically.
保偏光纤中两正交偏振模受外场作用,其传播速度发生变化,形成相位差。
The propagation velocities of the two orthogonally polarised modes in a "polarisation-maintaining" fiber are changed when exposed to external fields resulting in phase difference.
从而推得多叶应力区扭转光纤中的超本地模,由超本地模的相位常数来确定该光纤的双折射。
Then, super-local modes in multi-lobe stress region spun fibers can be obtained by using mode transform. Finally, the fiber birefringence is decided from the phase constants of super-local modes.
从而推得多叶应力区扭转光纤中的超本地模,由超本地模的相位常数来确定该光纤的双折射。
Then, super-local modes in multi-lobe stress region spun fibers can be obtained by using mode transform. Finally, the fiber birefringence is decided from the phase constants of super-local modes.
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