Of Information Engineering, WHUT 20 2.2.1 Fiber Materials CONTENT 1. The requirements of fiber materials It must be possible to make long, thin flexible fibers from the material. The material must be transparent at a particular optical wavelength in order for the fiber to guide light efficiently...
Halideglassfibers4.ActiveglassfibersIncorporatingrare-earthelements(atomicnumbers57-71)intoanormallypassiveglassgibestheresultingmaterialnewopticalandmagneticproperties.Thesenewpropertiesallowthematerialtoperformamplification,attenuation,andphaseretardationonthelightpassingthroughit.Twocommonlyusedmaterialsforfiberlasersare...
optical fiber 专业英语 OE, HUST OE, HUST Optical fiber manufacturing technology 2013-10-17 Outline 1. Introduction 2. Optical fiber structure 3. Optical fiber manufacturing process Optical fiber preform Optical fiber drawing 4. Summary The invention of laser in 1960-carbuncle laser Maiman(American)...
第3030章光纤OpticalFiber光纤光纤(Optical(OpticalFiber)Fiber)即光导纤维即光导纤维,,我们讨论通信所我们讨论通信所用的阶跃光纤用的阶跃光纤。。它的简化模型是中心纤芯半径为它的简化模型是中心纤芯半径为aa,,折射率为折射率为nn11;;层半径为层半径为bb,,折射率为折射率为nn22;外部空气折射率为;外部空气折射率...
光纤传感器optical fiber sensor光纤传感优点:灵敏度较高;几何形状具有多方面的适应性,可以制成任意形状的光纤传感器;可以制造传感各种不同物理信息声磁温度旋转等的器件;可以用于高压电气噪声高温腐蚀或其它的恶劣环境;而且具有与
Chapter11OpticalAmplifier12/15/20221TheSch.OfInformationEngineering,WHUTChapter11OpticalAmplifier1Usedroutinelyforlosscompensationsince1995AmplifytheinputsignalbutalsoaddsomenoiseSeveralkindsofamplifiershavebeendeveloped semiconductoropticalamplifier raman-basedfiberamplifiererbium-dopedfiberamplifierEDFAsareusedmostcommonlyfor...
光纤传感器(Optical Fiber Sensor)则是以光纤作为功能材料的传感器。光纤传感器的发展微弯光纤压力传感器光纤温度传感器5 2023/11/8图a 经典测量系统结构图b 光纤测量系统结构经典的传感器完成的是从非电量到电量的转换。光纤传感器完成的是从非光量到光量的转换。它们的区别是,光纤传感器以光作感知信息的载体,而不是...
Hence much enhanced bandwidth utilization for an optical fiber can be achieved by transmitting several optical signals, each at different center wavelengths, in parallel on the same fiber. 因此,更多的增加光纤带宽利用率可能通过利用不同的中心波长并行在同一光纤中传输几个光信号来实现。 This wavelength ...
(6) Much more enhanced bandwidth utilization for an optical fiber can be achieved by transmitting several optical signals, each at different , in parallel on the same fiber. (7) Optical fibers have very small diameters which are often than the diameter of a human hair. (8) The light from...
Chapter11OpticalAmplifier 2016/3/7 TheSch.OfInformationEngineering,WHUT 1 CONTENT Usedroutinelyforlosscompensationsince1995 Amplifytheinputsignalbutalsoaddsomenoise Severalkindsofamplifiershavebeendeveloped semiconductoropticalamplifier raman-basedfiberamplifier erbium-dopedfiberamplifier EDFAsareusedmostcommonlyfor...