光纤在光电线缆燃烧试验中的应用

随着信息技术的不断发展，信息传输线应用越来越广泛，而其燃烧特性的检测越来越重要，作者基于米氏散射理论（MST），提出了两种光电线缆燃烧试验的新方法，并进行了相应的讨论。     

光学塑料开发的历史与现状

本文简要回顾了光学塑料研制、应用的历史，叙述了国内外光学塑料开发、应用的现状及最新动态，分析了光学塑料的市场需求和开发前景。     

Analytic method for solving coupled nonlinear Schroedinger equations with oscillating terms describing polarized soliton oscillations

Using a variational method, a new model of the nonlinear propagation of optical solitons generated from semiconductor lasers through lossy elliptically low birefringent fiber, is presented within the framework of a system of coupled nonlinear Schroedinger (CNLS) equations with oscillating terms. This analytic model demonstrates polarized soliton oscillations in a lossy elliptically low birefringent optical fiber.     

行波半导体光放大器中饱和参量表达式的修正

根据行波半导体放大器中载流子复合的实际过程，对放大器饱和参量的表达式作了适当的修正。     

用缩醛树脂制作光学抛光片

本文讨论了缩醛树脂一般性质和特性，及其在制作光学抛光片中的应用。     

Luminescence properties of Tb and Eu-doped alumina films prepared by sol-gel method under various conditions and sensitized luminescence

Rare earth ion (Tb³⁺ and Eu³⁺)-doped alumina films were prepared by the aqueous sol-gel method under various conditions. The influences of the OH groups (phonon relaxation) and rare earth ion concentration (cross-relaxation) on luminescence were examined. In regard to the former relaxation, at treatment temperature above 600°C, reciprocal lifetime decreased with OH concentration, and below 500°C, decreased markedly and nonlinearly. On the other hand, in regard to the latter relaxation, there was negligible effect on luminescence for these doped films. The quantitative treatment was tried to lifetime considering these influences. Tb³⁺ and Eu³⁺ co-doped alumina films showed enhanced Eu³⁺ luminescence by the energy transfer from Tb³⁺ to Eu³⁺. Eu³⁺ luminescence intensity increased with a greater Tb³⁺ concentration.     

0.35μm CMOS激光二极管驱动器的设计

本文介绍了0.35μm CMOS工艺的激光二极管驱动器集成电路的设计。整个电路用Smart Spice模拟，模拟结果显示工作速率可以达到2.5Gb/s，调制电流幅度可以达到50mA以上，并且可以通过调节电压Vmod使调制电流幅度在0到50mA之间变化。     

Improvement in mechanical and optical properties of vapour chopped vacuum evaporated PANI/PMMA composite thin film

PANI/PMMA composite was synthesized by emulsion polymerization pathway and the composite thin film was obtained by vacuum evaporation. The effect of vapour chopping and varying PMMA concentration was also studied. The FTIR spectra showed that the PANI/PMMA composite thin film deposited as a short chain oligomers. Increase in transmittance and decrease in refractive index was obtained with increasing concentration of PMMA, which further increased the adhesion and decreased intrinsic stress. The vapour chopping improved its optical as well as mechanical properties and produced smoother surface morphology. Increase of PMMA made the film more amorphous and does not change its band gap.     

N6000系列光传输设备故障及处理方法

对日本Ｎ６０００系列光传输设备在运行中的故障，包括单盘故障、因施工不当出现的故障及传输设备与交换设备没能很好地配合而出现的故障等进行了介绍，对这些故障处理的流程也进行了详细的介绍。所介绍的内容均是实践经验的总结。     

Effect of annealing temperature on the optical and electrical properties of amorphous As45.2Te46.6In8.2 thin films

The optical absorption of the As-prepared and annealed As_45.2Te_46.6In_8.2 thin films are studied. Films annealed at temperatures higher than 453 K show a decrease in the optical energy gap (E_o). The value of E_o increases from 1.9 to 2.43 eV with increasing thickness of the As-prepared films from 60 to 140 nm. The effect of thickness on high frequency dielectric constant (?_∞) and carrier concentration (N) is also studied. The crystalline structures of the As_45.2Te_46.6In_8.2 thin films resulting from heat treatment of the As-prepared film at different elevated temperatures is studied by X-ray diffraction. An amorphous-crystalline transformation is observed after annealing at temperatures higher than 453 K. The electrical conductivity at low temperatures is found due to the electrons transport by hopping among the localized states near the Fermi level. With annealing the films at temperatures higher than 473 K (the crystallization onset temperature) for 1 h, the electrical conductivity increases and the activation energy decreases, which can be attributed to the amorphous-crystalline transformations.