单模传输

最后，提出了两种可实现光单偏振，单模传输的高非线性微结构光纤。

In the end , two kinds of highly nonlinear microstructured optical fibers that can achieve single-polarization , single mode transmission are designed .

分析结果表明光子晶体光纤具有奇异的色散特性，能在极大的波长范围内支持单模传输，在单模工作时可以具有反常波导色散。

The analysis results show that PCF has unusual dispersion property , which can support single mode transmission in a very large wavelength range and have anomalous dispersion under singe mode operation .

这种结构支持一系列人工SPP模式，且这些模式都可以单模传输。

There exist a series of SPP modes on such structures and the single-mode propagation is available for each mode .

采用有效折射率方法分析了SOI脊形光波导的模式特性，获得了不同尺寸范围内SOI脊形光波导的单模传输条件。

Single-mode SOI rib waveguide transmission conditions with the different sizes were obtained by using effective index method to analyze the SOI rib waveguides mode properties .

本文采用有效折射率法分析了下条载聚合物薄膜通道波导的传输特性，讨论了制备单模传输波导的条件及其影响因素，制备了PDA薄膜通道波导，并测试了其波导特性。

In the paper , the transmitting characters of low-strip-loaded polymer film channel waveguide were analysed by efficiency index method , and the influence factors of waveguide fabrication were discussed . The optimized fabricating condition was obtained , and the properties of waveguide were measured .

其次，本文介绍了光波导的基本理论和有效折射率方法（EIM），并利用有效折射率方法分析了脊形波导的结构参数和单模传输条件。

Secondly , this paper introduces the basic theory of waveguide and effective-index method ( EIM ), and then the configuration parameters and single-mode propagation condition of rib waveguide have been analyzed with effective-index method .

利用平面波导理论分析我们推导出满足单模传输的脊波导模型，并进行了仿真运算使其能够实现与光纤较好的单模耦合。

Single mode rib waveguide model is derived from parallel waveguide method .

分析了矩形波导中的场以及单模传输条件。

Introduce the field in the rectangular waveguide and single mode transmission conditions .

通过改变外延生长工艺来调节两层薄膜的折射率，可在一定波导的厚度范围内实现单模传输。

By adjusting the difference of refractive index of the double layer film , single mode operation can be realized with a certain waveguide thickness .

在同轴波导尺寸较大的情况下，传统的插入四块金属板的同轴插板式模式转换器难以满足扇形波导内单模传输的条件。

Under the circumstance of oversize coaxial waveguide , the traditional coaxial mode converter with four metal plates inserted does not satisfy the unique-mode requirement .

结果表明，调节包层的结构参数，等效双包层光子晶体光纤既可表现为正常色散也可表现为反常色散；并可在单模传输状态下，灵活调节色散的大小以及零色散点位置。

The calculated results indicate that the dispersion can be normal or abnormal and the zero dispersion wavelength can be shifted flexibly under single mode operation .

在给定相同条件下单模传输时，与圆形光波导相比，椭圆光波导传播常数变化很小。

Compared with the rotundity optical waveguide , the transmission constant of the elliptical optical waveguide changes very little under the same conditions for single mode transmissions .

它具有很多不同于传统光纤的独特性质，如高双折射、无限单模传输、色散高度可控等。

PCF have many unique properties compared to traditional fibers , such as endless single mode operation , flexible tailorability of dispersion and modal area , high birefringence etc.

而高非线性光子晶体光纤具有色散可控、无限单模传输等特性，是一种较理想的χ（3）非线性介质。

The high-nonlinear photonic crystal fiber is regarded as an ideal χ( 3 ) nonlinear medium for generating photon pairs , because of its controllable dispersion and endless single-mode propagation .

本实验结果可用于铌酸锂单晶光纤芯－包层波导结构，经选择适当的参数如膜厚、扩散温度、扩散时间等，可望得到晶纤的单模传输。

These results obtained in this study can be used to form the core-cladding waveguide structure of lithium niobate single crystal optical fiber and obtain single mode propagation by choosing suitable parameters such as film thickness , diffusion temperature , diffusion time , crystal fiber diameter , etc.

折射率中心凹陷对W型单模光纤传输特性的影响

Effects of central dip in refractive index on propagation characteristics of W-type single-mode fibers

在560Mbit/s单模光纤传输系统上对SL模分配噪声进行了测试。

Mode partition noise of SL is measured on 560 Mbit / s single mode optical fiber transmission system .

信号经60km的普通单模光纤传输后，平均开关增益为165dB，增益平坦度为15dB，最大等效噪声指数为-09dB。

After transmitting 60 km standard single-mode fiber ( SSMF ), signals have acquired an average on-off gain of 16.5 dB and a gain flatness of 1.5 dB . The maximum effective noise figure ( ENF ) is - 0.9 dB .

单模光纤传输系统的扩容

The Capacity Expansion of Single Mode Optical Fiber Transmission System

长波长单模光纤传输特性的近场法测量

Near-Field Measurement Method of Transmission Characteristics of Long-Wavelength Single-Mode Fiber

单模光纤传输模型孤波解的研究

Study of Solitary Wave Solutions in Monomode Optical Fiber

随机耦合下单模光纤传输光波偏振度的分析

An Analysis of the Degree of Polarization of Optical Wave in a Single-Mode Optical Fiber under Random Coupling

在考虑光纤色散三阶项时，推导出具有初始啁啾的高斯光脉冲沿单模光纤传输时的表达式。

The analytic expression is derived by taking into account the third-order dispersion as an initial chirped Gaussian optical pulse propagates along the single-mode .

第一代单模光纤传输系统设计用于长途大容量通信，其中继距离在40公里以上。

First generation single-mode fiber transmission systems are designed to serve as high capacity intercity transport with repeater spacing engineered up to 40 km .

编制了能够分析任意圆对称剖面结构单模光纤传输特性的小型通用程序；

A versatile microcomputer program is presented which can be utilised to analyse mode field characteristics of single-mode fibers with arbitrary refractive index profiles .

使用连续光实现了差分相位量子密钥分配，标准单模光纤传输距离达到205公里，是目前连续光量子密钥分配中最远距离。

Using the continuous wave , a DPS QKD system was implemented , and the transmission distance is 205 km with standard single mode fiber , which is the longest transmission distance with continuous wave . 5 .

当光由单模光纤传输到无芯光纤时，有17阶模式能够被强激发，每阶模式具有不同的耦合效率和不同的模式激发角度。

Due to the mode orthogonality and the on-axis excitation , only the first seventeen LP modes with different coupling efficiencies and mode angles are found to be strongly excited when the light is launched into coreless fiber from the single mode fiber at the input end .

单模光纤WDM传输中受激拉曼散射引起的串扰分析

Analysis of SRS induced crosstalk in SM fiber WDM transmission

文章通过微分方程的解，定量描述了单模光纤WDM传输中的SRS串扰，并指出减小这种串扰的方法。

The quantitative analyses of SRS induced crosstalk in SM fiber WDM transmission are given by solving differential equations and the methods to reduce the crosstalk are presented .

实验结果表明：只有非寻常折射率产生增量△n6，其中TM单模波导的传输损耗低达0.1dB/cm（633mm）。

The experimental results show that only the extraordinary index is increased and the propagation loss in the TM single-mode waveguides as low as 0.1 dB / cm at 633 nm .