光电对抗与军用光电技术研究进展

本文对光电对抗与军用光电技术研究的内容和组成进行了阐述,介绍了光电对抗与军用光电技术研究现状,系统地论述了光电对抗技术研究的趋势,综合介绍了光电对抗技术现有技术研究及成型的武器装备,并对今后光电对抗技术研究的重点技术进展进行了详尽的讨论。     

鼻咽癌药物我成像定位仪的光学设计

对药物荧光鼻咽癌定位的光学系统进行理论分析，给出了该系统的光学设计方法和设计结果。光学系统设计包括，激光器出射光束与光纤高效率耦合技术，同光轴非接触两光纤间的光束耦合技术以及获得较好的像清晰度和衬度的技术。     

全光网中的光码分多址(OCDMA)技术及其应用发展

介绍了OCDMA的系统结构和关键技术,将OCDMA技术与现有的光时分复用(OTDM)和波分复用(WDM)技术进行了详细的比较,指出了各自的优缺点,在此基础上对OCDMA技术的应用作了分析和展望.     

全分布式光纤应力传感器的研究新进展

全面综述了全分布式光纤应力传感器的发展概况.对光后向散射技术、光学非线性效应、模式耦合技术和光干涉技术的主要研究方案进行了评述,重点介绍和分析了实现高空间分辨率和动态应力测量的新技术.最后展望并讨论了全分布式应力传感器的发展趋势和应用前景.     

高空间分辨率分布式光纤传感技术的研究进展

对三种基于布里渊散射的高空间分辨率分布式光纤传感技术,即布里渊光纤时域分析暗光脉冲技术、布里渊光相关域分析及布里渊光频域分析技术,进行了详细阐述.分析了每种技术的工作原理,对每种技术所采用的实验系统配置、所能达到的空间分辨率进行了介绍,并对其存在的局限性进行了说明.     

基于光载波抑制的光标记交换新技术

介绍一种新的光标记交换技术,它是利用光载波的抑制来产生具有固定频率间隔的双波长光波,并对这两路光波分别进行调制,以加载光标记和光数据载荷.在网络的节点处使用波长变换技术进行标记交换.该技术结构简单,易于实现,克服了现有的光标记交换技术中的一些不足之处.     

Prechirp technique as a linear dispersion compensation forultrahigh-speed long-span intensity modulation directed detectionoptical communication systems

Prechirp technique, as a linear dispersion compensation for intensity modulation direct detection (IM-DD) optical transmission systems, has been investigated theoretically and experimentally. This technique is based on a predistortion technique in an optical transmitter. Implementation to the ordinary IM-DD optical transmitter, which uses an external intensity modulator, is easily realized merely by adding a small injection current modulation to a semiconductor laser diode, allowable optical transmission fiber dispersion will be more than doubled with this technique, modified prechirp technique, which utilizes a time division superimposing prechirped bit streams, has also been investigated to achieve greater dispersion compensation capability     

相位掩模法制造光纤光栅的理论分析

推导出了用相位掩模法制造光纤光栅的理论根据，得出相位掩模法中常见的一些有用公式，并报道了实验结果。     

High-speed optical FSK modulator for optical packet labeling

We described a novel optical label swapping (OLS) technique for optical packet systems using frequency-shift-keying (FSK) optical labeling. High-speed optical FSK signal can be generated by using an external FSK modulator consisting of four optical phase modulators. The FSK modulator was based on optical single-sideband (SSB) modulation technique, and comprised of traveling-wave electrodes for high-speed frequency switching. We demonstrate 10 Gbps FSK transmission, and simultaneous modulation by FSK and intensity modulation (IM). OLS using double-sideband modulation was also demonstrated, where this technique can be used for a bundled wavelength-domain-multiplexing (WDM) channels without using an array of pumping light sources.     

自由空间微光学元件的研制

介绍了一种新近产生的被称为自由空间微光学平台（ Ｆ Ｓ Ｍ Ｏ Ｂ）的三维空间集成光学系统。并提出了一种用二氧化硅（ Ｓｉ Ｏ２）作光学材料、光刻胶和溅射铜（ Ｃｕ）薄膜作牺牲层、电镀铁镍（ Ｆｅ Ｎｉ）作支撑结构的制作自由空间微光学元件的新工艺。研制成功了多种与基底相垂直的三维位相型微光学元件。     

原子控制光学信道在光电子系统中的应用

在许多光电系统中,如激光雷达、激光通信、光电探测等,对其滤光和鉴频的能力提出了越来越高的要求。采用传统的光学高分辨技术满足这些应用要求,存在高光谱分辨率与系统稳定性、技术复杂性、甚至成本的矛盾,而采用基于原子跃迁的高分辨光学技术（即原子滤光技术）,可以在很大程度上缓解这一矛盾。在光电系统接收端采用原子滤光技术后,在其发射端也必须采用同种原子的同种跃迁控制激光波长,从而构成了原子控制的光学信道。本文即介绍原子控制光学信道的作用、原理、构成,以及几种采用原子控制信道进行高分辨率滤光和高精度鉴频的光电系统。     

图象的光学微分处理

光学图象的微分处理是突出图象的边缘轮廓的方法.人的眼睛对于图象边缘轮廓比较敏感.我们在制作微分滤波器时,使用观察杨氏条纹的移动来选择光学薄膜的厚度,以实现δ(x,y)的π相位延迟.一般的光学图象可用二元函数f(x,y)来表示.按照二元函数偏微分的定义,函数f(x,y)的一阶偏微分可表示为:     

Novel coherent heterodyne optical time domain reflectometry forfault localization of optical amplifier submarine cable systems

A coherent, heterodyne-detection, optical time-domain reflectometry technique suitable for an all-optical repeater system is proposed. Rayleigh backscatter measurement through a 309-km bidirectional optical transmission line with six cascaded in-line semiconductor laser amplifiers is demonstrated using this technique. The possibility of fault localization on an optical amplifier system with optical isolators is shown     

Fibre-supported optical generation and delivery of 60 GHz signals

A novel `frequency quadrupling' technique for the optical generation and delivery via fibre of modulated 60 GHz band millimetre-wave signals is described. The technique requires only microwave frequency capability for the optical modulator and drive electronics, and these are readily available commercially. The frequency quadrupling technique is demonstrated experimentally with a high spectral purity 60 GHz signal obtained using a 15 GHz source and optical modulator     

光码分多址网络技术及其研究进展

介绍了光码分多多的基本概念、技术及其特点，重点综述了光码分多址网的光编码和光解码技术及其研究进展，最后指出光码分多址网络技术是实现全光网的重要技术，应用前景广阔。     

Spectral efficient DWDM optical label/payload generation and transport for next-generation Internet

A novel optical carrier suppression and separation (OCSS) technique is used to generate spectral efficient DWDM optical labels and payload. The advantages and disadvantages of using different techniques to generate optical labels are compared. The transmission performance of the optical label and payload is experimentally and numerically investigated. These numerical and experimental results show that the optical label and payload generation and transport using the OCSS technique can be applied to wide-area metro and core network.     

计算机通信技术

着重介绍了超高速光通信技术、远距离光通信技术和低成本透明网络光通信技术的最新发展情况     

光学新技术

介绍了新型光学技术。引入新的光学概念 :光子晶体 ,光子能带以及光子晶体制造技术     

基于频域编码的光码分多址城域/接入网

本介绍了基于频域编码的光码分多址技术的基本原理和组网的网络结构，提出了基于频域编码的上／下路复用器的实现方案，比较了光码分多址和波分多址技术的优缺点，最后指出基于频域编码的光码分多址技术是实现光城域网和光接入网的重要技术。     

Pulsewidth distortion monitoring in a 40-Gb/s optical systemaffected by PMD

A novel technique for monitoring the pulse broadening due to polarization-mode dispersion (PMD) in optical systems is described. The technique is based on the measurement of the Stokes vectors at different frequencies over the spectrum of the received optical pulse find does not require a priori knowledge of the fiber PMD statistics or details of the optical path. The validity of our technique has been demonstrated by both simulation and experimental results