1) bidirectional resonance
双向谐振
2) double directional prism resonator
双定向棱镜折叠谐振腔
1.
By using double directional prism resonator,Cr 4+ ∶YAG passive Q switch, Ce Nd∶YAG laser rod, noncritical phase matching KTP crystal,1.
采用双定向棱镜折叠谐振腔、Cr4+ ∶YAG被动调Q晶体、Ce Nd∶YAG激光棒、非临界相位匹配KTP光参量振荡晶体 ,获得5 。
3) dual peak resonance
双峰谐振
1.
Based on dual peak resonance of long-period fiber grating(LPFG),a novel film sensor is presented,in which the film that is sensitive to the surrounding gases is coated on the cladding of the fiber grating region,and the intervals of dual peak resonant wavelengths change with the film refractive index.
利用双峰谐振效应,通过在长周期光纤光栅(LPFG)包层表面涂覆一层对周围气氛敏感的薄膜,建立了一种新型薄膜传感器,其双峰谐振波长间隔随薄膜折射率的变化而变化。
4) double fiber ring resonator
双谐振环
5) dual resonance
双谐振
1.
A dual resonance interference spectrum is obtained after the structural parameters of the LPG pair in PCF are designed based on the relation between coupling strength and the beat length as well as the relation between beat length and wavelength.
结合光栅耦合强度与波长的关系以及拍长与波长的关系,对PCF中LPG对的参数进行选择设计,得到双谐振波长的干涉谱,级联LPG对构成的MZI干涉光谱在两个谐振波长处由于耦合强度不同而不同。
6) Transverse resonance
横向谐振
1.
In order to provide a high accuracy three-component accelerometer for seismic exploration in the high electro-magnetic area, a novel three-component photoelastic fiber optic accelerometer with good linearity and high transverse resonance is designed.
为满足强电磁场环境下的高精度三维地震勘探的需求,研制了一种高精度三分量光弹光纤加速度地震传感器,该传感器具有线性度好、抗横向谐振的特点。
补充资料：电磁谐振腔
| 电磁谐振腔 electromagnetic resonant cavity 微波波段的谐振电路。通常在波导的两端用导电板短路而构成的封闭腔体 。电磁场被限制在腔内，没有辐 射损耗，谐振腔的品质因数Q值较高。随着谐振频率的提高，要求腔体的尺寸减小 ，致使损耗加大 ，Q 值下降，所以在毫米波、亚毫米波还采用开放腔。在理想的无耗谐振腔内，任何电磁扰动一旦发生就永不停歇。当扰动频率恰使腔内的平均电能和平均磁能相等时便发生谐振，这个频率称为谐振频率。腔内的电磁场可根据腔的边界条件求解麦克斯韦方程组而得出，它是一组具有一定正交性的电磁场模式的叠加。按波导两端被短路的观点，腔内的电磁场也可认为是波在腔壁上来回反射而形成的驻波场。当腔长等于某种模式的1／2波导波长整数倍时，该模式发生谐振，称为谐振模。谐振腔和外电路的能量耦合方式有：环耦合、探针耦合和孔耦合。谐振腔的主要参数是谐振频率f 和品质因数Q。谐振频率决定于腔的形状、尺寸和工作模式。谐振腔的有载品质因数Q由谐振腔的内部损耗和外部损耗决定。内部损耗取决于腔壁导体的损耗和腔内介质的损耗，外部损耗取决于通过耦合元件反映的外电路负载情况。 |
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条