渐变折射率平板光波导的散射子波相位的数值计算

利用转移矩阵理论,得到了渐变折射率波导的精确色散方程,并分析了存在于波导中的散射子波相位,对不同折射率分布时散射子波相位贡献的大小进行了数值计算,由此得到了WKB近似方法存在误差的原因。     

半导体的光学非线性与光学双稳

本文是对近年来光学双稳领域的进展的简介与回顾,着重介绍了解释(?)子饱和吸收和非线性色散的二能级模型,讨论了几种测量激子吸收的实验方案,并且提出了自己的实验设计方案。     

全新的光调制技术：双二进制码光调制

光纤在全球通信中运用越来越广泛，在光纤中要传输的数据量也在大量增加，怎样充分利用目前已经铺设好的光路而又要保证信号传输质量是当前光通信领域研究较多的问题．本文就此提出了一个新的光调制技术：双二进制码光调制技术，既增大了光频段的使用率同时也减少光传输中对光纤色散的依赖性，实现了数据的大容量、远距离传输．     

光开关

2001年初，本书的编辑及主要作者爱尔巴瓦帕博士，在为IEEE通讯学会筹办两个学术报告会，即ICC（国际通讯学术报告会）和GLOBECOM（全球通讯学术报告会）学术报告会的过程中，涉及光开关演示问题，于是与其他合著者一起萌发了编写此书的念头。当时电信工业包括光开关部门已处于鼎盛时期，但在2001年前它还处于空前的低潮时期。     

当代光纤和光器件技术

全光网络是当今光通信的最高形式 ,它的普及关键在器件。文章论述光网络中的全波光纤、光纤放大器、DWDM光源、全光波长转换器OTU、光开关与光路由器、光分插复用器OADM等几个核心器件当前的研究动向     

光物理学

本书是关于物理学的专著，这是第三版的重印版。书中既介绍了光学的基础，又介绍了现代光科学的多方面进展，还增加了若干广义光学的重要新发展。     

Optical microcavities

Optical microcavities confine light to small volumes by resonant recirculation. Devices based on optical microcavities are already indispensable for a wide range of applications and studies. For example, microcavities made of active III-V semiconductor materials control laser emission spectra to enable long-distance transmission of data over optical fibres; they also ensure narrow spot-size laser read/write beams in CD and DVD players. In quantum optical devices, microcavities can coax atoms or quantum dots to emit spontaneous photons in a desired direction or can provide an environment where dissipative mechanisms such as spontaneous emission are overcome so that quantum entanglement of radiation and matter is possible. Applications of these remarkable devices are as diverse as their geometrical and resonant properties.     

Seismic waves increase permeability

Earthquakes have been observed to affect hydrological systems in a variety of ways--water well levels can change dramatically, streams can become fuller and spring discharges can increase at the time of earthquakes. Distant earthquakes may even increase the permeability in faults. Most of these hydrological observations can be explained by some form of permeability increase. Here we use the response of water well levels to solid Earth tides to measure permeability over a 20-year period. At the time of each of seven earthquakes in Southern California, we observe transient changes of up to 24 degrees in the phase of the water level response to the dilatational volumetric strain of the semidiurnal tidal components of wells at the Pi?on Flat Observatory in Southern California. After the earthquakes, the phase gradually returns to the background value at a rate of less than 0.1 degrees per day. We use a model of axisymmetric flow driven by an imposed head oscillation through a single, laterally extensive, confined, homogeneous and isotropic aquifer to relate the phase response to aquifer properties. We interpret the changes in phase response as due to changes in permeability. At the time of the earthquakes, the permeability at the site increases by a factor as high as three. The permeability increase depends roughly linearly on the amplitude of seismic-wave peak ground velocity in the range of 0.21-2.1 cm s(-1). Such permeability increases are of interest to hydrologists and oil reservoir engineers as they affect fluid flow and might determine long-term evolution of hydrological and oil-bearing systems. They may also be interesting to seismologists, as the resulting pore pressure changes can affect earthquakes by changing normal stresses on faults.     

具有非线性周期结构光学介质的光学双稳性

应用Ｆ－Ｐ腔的简单理论，首次推导出非线性周期结构光学介质的入射光强和出射光强关系的解析表达式，并用它详细讨论了此种介质的光学双稳态的产生条件，临界入射光功率以及开关点的特性．临界入射光功率可低於１μＷ。     

光学谐振腔反射特性的光外差探测

本文叙述了用位相调制光外差技术探测光学谐振腔反射特性的原理及实验结果。讨论了将该技术用于激光稳频技术时,光学谐振腔长度的计算方法。     

光学谐振腔反射特性的光外差探测

本文叙述了用位相调制光外差技术探测光学谐振腔反射特性的原理及实验结果。讨论了将该技术用于激光稳频技术时,光学谐振腔长度的计算方法。     

球锥形端面光纤在光耦合中的作用

本文叙述了球锥形端面光纤在与双异质结面发光二极管耦合中的作用。这种端面光纤与平端面光纤、球形端面光纤相比,耦合效率高,而且可扩大装配容差。具有这种形式端面的单模光纤在与光纤耦合中也能得到满意的结果。