The specifications of the intensity modulator at 1 . 054 m involved with extinction ratio better than 50 db , and low drive voltage , and wide operation band width and so on 该强度调制器工作于1 . 054 m ,具有大于50db的消光比、低驱动电压、宽工作带宽的特点。
Violet light is scattered more than blue light . however , the human eye is less sensitive to violet than to blue . as a result , we perceive a blue sky instead of a violet sky 紫光比蓝光散射得更甚，但人眼对紫光的感觉较弱，结果我们看到的天空是蓝色而不是紫色。
Violet light is scattered more than blue light . however , the human eye is less sensitive to violet than to blue . as a result , we perceive a blue sky instead of a violet sky 紫光比蓝光散射得更甚，但人眼对紫光的感觉较弱，结果我们看到的天空是蓝色而不是紫色。
The influences of couple ratio accuracy and twist stress of interference arms on device ' s isolation have been investigated theoretically and experimentally . the isolation can reach about 17 . 5db 对耦合器分光比精度和干涉臂扭转应力对器件隔离度的影响做了理论分析和实验研究。
The normal polarizing device is made of iceland crystal that is based on birefringence of crystal . its merit is high extinction ratio , high transmission and wide wavelength 一般的起偏器件和检偏器件是利用晶体的双折射特性设计而成，其优点是：消光比和透射比高，适用的光谱范围大。
Hence , all things being equal , the light coming out from a bubble is brighter than that from water which is just a large collection of water droplets , and appears white under the sun 因此，从气泡散发出来的光比同一大小的水滴散发出来的多水可以理解为众多水滴集合而成，在太阳底下便呈现白色。
Hence , all things being equal , the light coming out from a bubble is brighter than that from water ( which is just a large collection of water droplets ) , and appears white under the sun 因此，从气泡散发出来的光比同一大小的水滴散发出来的多（水可以理解为众多水滴集合而成） ，在太阳底下便呈现白色。
Fibre optic interconnecting devices and passive components - basic test and measurement procedures - part 3 - 40 : examinations and measurements - extinction ratio of a polarization maintaining fibre pigtailed connector 纤维光学互连器件和无源器件基本试验和测量程序第3 - 40部分：检查和测量-带保偏光纤尾纤连接器的消光比
In this dissertation , the boa device with high extinction - ration , low drive - voltage , high - speed switch and insensitive to wide range of light wavelength , has been developed on double - heterostructure gaas / gaaias 本研究就是在gaas gaalas双异质结材料上设计高消光比，低驱动电压，高速度，较宽范围工作波长不敏感的高性能boa光开关。
Then a theoretic study about this buffer and analysis of its characteristics such as gain , ase noise and snr are carried out , and the influence of optical switch ’ s extinction ratio on the buffer is also represented 接下来详细全面的对这种新颖缓存器进行了理论研究,并分析了它的增益、 ase噪声和snr等特性,以及光开关消光比对缓存器的影响。
