| 1. | The difficulty lies primarily in the fact that the fiber core is relatively small .
困难主要在于纤维芯比较小。 |
| 2. | The customer can inform cni of the fiber requirements such as fiber core diameter , fiber length , fiber connector , etc in details
客户需要向cni提供详细的光纤指标如光纤芯径，光纤长度， |
| 3. | Optic cable of 0 . 12 million fiber core km was newly laid , basically building up a high - speed broadband network that cover shunde city
2万纤芯公里，基本建成了覆盖顺德市的高速宽带城域网。 |
| 4. | Using double - clad fibers , an efficient coupling of a high - power pump source into a single - mode fiber core can be achieved
尤其是包层泵浦技术的应用,使高功率输出的光纤激光器实现成为可能。 |
| 5. | The compact fiber core layer make the sections very tough and firm , the lengthways bend intensity and compact intensity is higher than common rolled steel
致密的纤维芯层使得型材非常坚韧牢固，其纵向弯曲强和冲击强度的绝对值已高于普通钢材。 |
| 6. | Fiber gratings are new type of passive optical components , which are based on the periodical distribution of refraction index in fiber core
光纤光栅是一种新型的光子器件,它是通过在光纤中建立起一种空间周期性的折射率分布,来改变和控制光在光纤中的传播行为。 |
| 7. | They are new type of passive optical components , which are based on the periodical distribution of refraction index in fiber core . fiber gratings have several distinguished advantages over normal fibers
它是利用光纤材料的光敏特性在光纤的纤芯上建立的一种空间周期性折射率分布,其作用在于改变或控制光在该区域的传播行为方式。 |
| 8. | Fiber bragg grating is produced in fiber core . it has small volume and bragg reflect wavelength can be modulated by temperature , strain and so on . so it is widely used in fiber sensor field
布拉格光栅直接制作在光纤纤芯上，体积小具有确定的中心波长，布拉格反射波长可受温度、应变等物理量调制的特性，广泛的应用于光纤传感等领域。 |
| 9. | The density distribution shows coronet as to the single mode . and the density distribution shows equality as to the multi - modes , except the little hollow in the optical fiber core . the second is coherent incidence light
结果表明，对于非相干情况，输出光强为中心对称和沿径向非均匀衰减形式；对于相干情况，输出光强分布为复杂的峰谷分布形式。 |
| 10. | The dual - core air - guided photonic bandgap fiber couplers are designed and decoupling phenomenon has been found . coupling properties of the pbgfs with two adjacent air holes as fiber cores are analyzed . the decoupling point , where there is no
对具有两个相邻纤芯的空气传导光子带隙光纤的传导模式和耦合特性进行了理论分析,在所分析的结构中发现了无耦合点,在该波长处两个相邻纤芯之间不发生能量转移。 |
