用内铸法制得了具有波导结构的预制棒。
Preforms with waveguide structure have been formed by using a built -in casting method.
本发明涉及一种半导体薄膜内包层放大光纤及其预制棒制造方法。
The present invention relates to a semiconductor film internal cladding amplification optical fibre and its perform manufacture method.
在了解光纤预制棒加工工艺的基础上，选择M CVD法为研究对象。
Based on the knowledge of producing optical fiber preform, MCVD process was selected as the main research object.
可通过将多孔疏松预制棒送入固结工序之后拉丝该多孔疏松预制棒而制造多孔光纤。
A holey fiber can be produced by drawing the holey porous preform, after having submitted it to a consolidation process.
本文主要研究了一种新的测量方法——细光束扫描来测量光线预制棒的折射率分布。
In this paper a new measure method is described — the technique of thin beam scan to measure the distributing of refraction ratio of section plane of polymer optical fiber.
光纤预制棒相对于光纤而言，由于其尺寸大的特点，折射率分布的测量方法具有独特性。
Compared with optical fiber, optical fiber preform is characterized by its bigger size, so the measurement method for its refractive index profile has uniqueness.
本文从几何光学出发，建立了利用预制棒的前向散射决定预制棒芯折射率分布的理论公式。
This paper establishes, from a geometrical-optics point of view, a theoretical formula for calculating the refractive index profile of a preform by forward scattering.
采用化学原位聚合技术和套管法二次预制棒拉丝技术，成功制备了椭圆芯微结构聚合物光纤。
A kind of microstructured polymer optical fiber with elliptical core has been fabricated by adopting in-situ chemical polymerization technology and the secondary sleeving draw-stretching technique.
预制棒至少一个几何参数的测量，包括确定软化区域至少一部分的轮廓，如颈部区域轮廓的图像。
Measuring at least a geometrical parameter of the preform may comprise determining the profile of at least a portion of the softened region e. g. an image of the neck region profile.
介绍了PCVD制棒法的优点，描述了实用型PCVD法制造光纤预制棒系统的设备组成内容、性能参数及其推广应用的前景。
This paper introduces the advantage of PCVD method and describes the long PCVD equipment for making optical fiber preforms, performance parameters and the overview of applications.
论述了特种气体在集成电路、太阳能电池、化合物半导体、液晶显示器和光纤预制棒等电子行业中的应用，并就其使用安全提出了建议。
This article introduces the application of specialty gases in electronics industries, such as integrated circuit, solar cell, compound semiconductor, TFT-LCD and optical fiber perform.
研究表明良好的预制棒加工质量可有效改善光纤纤芯与包层的界面状态，并且相对于纤芯玻璃来说，粘度较高的包层玻璃其加工质量对界面缺陷的影响更为显著。
Compared with core glass, the effect of optical processing quality of cladding glass on interface defects was more evident when its viscosity at drawing temperature was higher tha.
的宜用捣棒人工捣实。检验现浇混凝土工程和预制构件质量的混凝土，试件的成型方法应与实际施工采用的方法相同。
To concrete used to test cast-in-place concrete project and prefabricated parts quality, forming method of specimen shall be the same as method adopted in practical construction.
的宜用捣棒人工捣实。检验现浇混凝土工程和预制构件质量的混凝土，试件的成型方法应与实际施工采用的方法相同。
To concrete used to test cast-in-place concrete project and prefabricated parts quality, forming method of specimen shall be the same as method adopted in practical construction.
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