查询词典 optical fiber

An over view of the research background is introduced, and the advantages of the fully distributed optical fiber sensor on base of the OFDR (optical frequency domain backscattering reflectometry) are presented.

本文以分布式温度和光纤微弯损耗为对象以光频域Rayleigh散射和Raman散射为基础研究了全分布式光纤传感器的测试平衡条件、模型和算法。

We got the simple and high accurate eigenvalue equations and cutoff frequency formulae of all propagation modes. Second, to the optical fiber with homogeneous cladding, we defined the "permittivity ratio", and we got the simple and high accurate connection of cutoff frequency to the ratio. Third, to the fiber with inhomogeneous cladding, we analyzed the dispersive and power-frequency characteristics.

第二，对于具有各向同性包层的弱渐变光纤，引入了介电比，找到了精度高且形式简洁的截止频率对折射率参数的依赖关系；第三，对于具有各向异性包层的弱渐变光纤，首次通过包层的轴向与横向的介电常数比分析了该类光纤的色散和功率特性。

The company has a number of highly qualified marketing personnel and technical engineers, as well as Optical Fiber Fusion Splicer, OTDR and other optical communication equipment and a wealth of engineering experience.

公司拥有一批高素质的营销人员和技术工程师，以及拥有光纤熔接机、OTDR等光通信仪器设备和丰富的工程经验。

In the optical-fiber channel, amplified spontaneous emission noise in the optical amplifier is the major source of noise.

在远程光纤信道中，放大器自发辐射噪声是主要噪声源。

With the development of optical communication , the capacity and rate of the data transmission are increasing stably . The tenability , accuracy and stability of light sources are essential for modern optical fiber communication systems .

随着光通信技术的迅速发展，数据传输的容量和速率正在持续稳定地提高，光纤通信系统对通信光源的精确性和稳定性提出了更高的要求。

ABSTRACT Optical time division multiplexing is one of the effective methods to enhance the capacity of optical fiber communication systems and networks and it is very important for the development of new generation communication network.

光时分复用技术是光纤通信系统与网络扩容的有效方法之一，对发展新一代通信网具有重要意义。

High power ultra short optical pulses is a key tool in basic science study and large capacity high speed optical fiber communication.

高功率的超短光脉冲作为基础科学与应用科学研究的一种强有力的工具和大容量高速光通信中的关键技术而日益引人瞩目。

As a transmission medium in measurement system, fiber has various advantages. As a result, optical fiber sensors, which have burgeoned in the pass twenty years, have become a research focus in the sensor field, and have been extensively applied in many fields such as process control, biochemistry, navigation, structure detection, non-contact measurement and so on.

作为测量系统中的传光媒介，光纤具备多方面的优点，这使得光纤传感器近二十年来在传感检测领域异军突起，成为传感器研究的热点，并已经在过程控制、生物化学、航空航海、结构监测、非接触监测等诸多领域获得了广泛的应用。

BY modifying phase mask UV exposure system and inserting a circumvolved device which making optical fiber rotation in back of the phase mask, the PMD in fiber Bragg gratings is compensated.

改变光纤光栅紫外曝光系统，在相位掩模板后插入一个旋转装置，使得光纤在制作过程中可以进行某种旋转。

The optical element focuses the collimated light onto the aperture of the optical fiber.

光学元件将准直的光聚焦到光纤的孔径上。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。