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偏振相关性
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  polarization dependence
     Study on Transverse-load Characteristics and Polarization Dependence of Novel Long Period Fiber Gratings
     新型长周期光纤光栅的横向负载特性及其偏振相关性研究
短句来源
     Taking a 1×4 symmetric MMI splitter as an example,when the interference region and input and output waveguides are also changed,the excess loss is decreased 0.02 dB,the uniform is increased 0.139 dB.The MMI also own super polarization dependence and tolerance.
     以1×4的对称型MMI分束器为例,在输入输出臂上各增加了倒锥形结构后,较传统设计附加损耗减小了0.02 dB,均匀性增加了0.139 dB,器件长度减小了500μm。 同时,改进后的器件具有优越的偏振相关性及客差性。
短句来源
     The experimental results show the polarization dependence of QPM SHG in PPLN.
     实验结果表明了在周期性极化铌酸锂中准相位匹配倍频的偏振相关性
短句来源
     Polarization dependence of phase modulation originating from birefringence makes TE and TM modes have different spectrum distribution,thus contributing a considerable part of spectrum broadening for output pulse.
     双折射使得SOA对光的相位调制具有偏振相关性,TE模和TM模具有不同的光谱分布,从而总的光谱被展宽。 研究表明,超短光脉冲在SOA中发生的光谱展宽中,很大程度上是来源于相位调制的偏振相关性,并与SOA的工作电流、光功率和脉冲形状等因素有关;
短句来源
     Study on Polarization Dependence and Wideband Characteristics of Semiconductor Optical Amplifier
     半导体光放大器偏振相关性及其宽谱特性研究
短句来源
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  polarization-sensitivity
     Experimental results show that the polarization-sensitivity of AWG is greatly decreased. Waveguide birefringence B is about(1.4077×10~(-5),) which is one order smaller than the conventional B=(2×10~(-4)) value.
     实验表明器件的偏振相关性大大改善,其双折射B约为1.4077×10-5,远小于二氧化硅-硅基波导结构阵列波导光栅的双折射B=2×10-4。
短句来源
     Experimental results show that the performances of AWG including polarization-sensitivity and thermal stability are improved.
     测试结果表明该器件在偏振相关性以及热稳定性等指标上都得到了改善。
短句来源
  “偏振相关性”译为未确定词的双语例句
     Study on gain polarization sensitivity of quantum-well semiconductor optical amplifier
     量子阱半导体光放大器的增益偏振相关性研究
短句来源
     (1) FRA’s basic theory is detailed. The properties of FRA are discussed, including gainsaturation property, polarization correlation, noise property and high power pump sourceproperty.
     本文对喇曼光纤放大器的主要研究内容和研究结果如下:(1) 阐述了喇曼光纤放大器的理论基础,分析了喇曼光纤放大器的增益饱和特性、增益带宽特性、偏振相关性、噪声特性以及大功率喇曼泵浦特性等。
短句来源
     The iron-exchangedoptical waveguides have such advantages as low transmission loss, weakpolarization independence, a fixed number of propagation modes andcompatibility with the optical fiber.
     这种方法制作出来的光波导稳定并可使其性能得到优化,具有更低的传输损耗和偏振相关性,可以支持限定的模式,且能够很好地与光纤平面光波导损耗测试兼容。
短句来源
     However, the application of Polarization-Dependent AOTF is limited because of the polarization diversity in the fiber communication system.
     但由于传统的AOTF的偏振相关性不适应光网络中偏振态随机变化的光信号,使得其在光纤通信系统中的实际应用受到了极大限制,因此就有了偏振无关的声光可调谐滤波器的提出。
短句来源
     Considering the AWG on SOI we analyze how to reduce its polarization insensitive by using special waveguide structure. We also calculate a 16 channel, 0.8 nm spacing AWG demultiplexer. The results show that the polarization insensitive is less than 0.06 nm.
     本文针对 SOI材料的阵列波导光栅 ,分析了如何采用特殊的波导结构来减小它的偏振相关性 ,并对 1 6通道、间隔为 0 .8nm的 AWG解复用器进行了计算 ,结果表明其偏振敏感性低于 0 .0 6nm。
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  polarization dependence
Polarization Dependence of a Hydrophobized Electrode for Electrosynthesis of a Soluble Product
      
The polarization dependence of the cross sections is expressed in terms of the degrees l and ξ of linear and circular photon polarizations.
      
The polarization dependence of the stimulated bremsstrahlung and inverse bremsstrahlung (SBIB) of quasiclassical electrons on highly charged ions with a core is calculated in the approximation of a specified Coulomb current.
      
Calculations are made of the energy levels and the polarization dependence of the electromagnetic wave absorption in a spirally rolled-up quantum well.
      
Experimental observations are explained by a model of anisotropic evaporation of graphite-like carbon material due to polarization dependence of the absorption and reflection coefficients for a rough surface.
      
更多          
  polarization dependence properties
Selection rules and polarization dependence properties of one- and two-photon optical spectrocopies to exciton states in semiconductors are briefly discussed.
      
  polarization-sensitivity
A polarization-sensitivity of 12.8 (average) can be recorded from cells sensitive to the ultraviolet spectrum of light.
      


Mode field of

本论文采用Marcatili方法分析矩形波导的模场特性,在此基础上计算了AWG波分复用/解复用器串扰与输入/输出波导间隙参数(dr/w),波导结构参数V的变化关系.计算了串扰值一定时,选取V参数与dr/w的关系曲线.分析了在不同折射率差波导中,串扰与偏振的相关性,为器件的整体优化设计提供了参考数据.

Two kinds of polarization compensation ways for silica waveguide on silicon are analyzed by finite element method.It is shown that the polarization within silica waveguide can be compensated by making stress release grooves and adjusting thermal expansion coefficient of overcladding layer.The stress release groove is applied to release a compress stress introduced by a difference of thermal expansion coefficient between silica and silicon substrate,and to change the distribution of stress around the core.But,when...

Two kinds of polarization compensation ways for silica waveguide on silicon are analyzed by finite element method.It is shown that the polarization within silica waveguide can be compensated by making stress release grooves and adjusting thermal expansion coefficient of overcladding layer.The stress release groove is applied to release a compress stress introduced by a difference of thermal expansion coefficient between silica and silicon substrate,and to change the distribution of stress around the core.But,when its depth is over a certain value,the groove will modify and release the polarization of waveguide.In compensation with groove depth ,rove width does a little.The adjusting of thermal coefficient of overcladding compensates waveguide polarization,but that of undercladding layer or core layer has little effect.

使用有限元方法分析了硅基二氧化硅波导的两种偏振补偿方法的可行性 .结果表明采用应力释放槽和调节上包层热膨胀系数都可改善波导的偏振相关性 .采用应力释放槽可以释放波导中的由于硅衬底与二氧化硅热膨胀系数失配造成的压应力 ,可以影响芯区附近的应力分布 ,但是只有释放槽的深度达到一定值时才能改善波导的偏振相关性 ,增大槽的宽度也在一定程度改善偏振相关性 ,但效果较差 .调节波导上包层的热膨胀系数可以很好的解决波导的偏振相关问题 ,而调节波导的其它层的热膨胀系数对波导的偏振相关作用较小 .

The theoretical optimization of tensile strained InGaAsP/InGaAsP MQW for 1.55μm windows polarization-independent semiconductor optical amplifier is reported.The valence-band structure of the MQW is calculated by using k·p method,in which 6×6 Luttinger effective-mass Hamiltonian is taken into account.The polarization dependent optical gain is calculated with various well width,strain,and carrier density.

优化设计了 1.5 5 μm In Ga As P/In Ga As P张应变量子阱偏振不灵敏半导体光放大器的结构 .利用 k· p方法计算了多量子阱的价带结构 ,计算中考虑了 6× 6有效质量哈密顿量 .从阱宽、应变、注入载流子密度等方面计算了量子阱模式增益的偏振相关性 .

 
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