方显英雄本色

在计算机辅助设计这种高性能图形图像处理应用中,除了对计算机(特别是显示卡)性能有较高的要求以外,还必须要求大屏幕彩色显示器的支持。为了很好地完成工程图片设计,色彩、层次、清晰度和线条质量也是显示器应具备的重要因素。近年来随着多媒体技术的迅速发展和各种新兴行业(如证券、金融、广造制作等)的不断涌现,大屏幕彩色显示器越来越向非专业的家用和商用市场渗透,从而展现出广阔的前景。目前在国内显示器市场上已有不少品牌。

Measurement of the Residual Modal Reflectivity of AR Coating on a SLD

The superluminescent diode has been fabricated by applying an AR coating to the output facet of the semiconductor laser for the purpose of eliminating or suitably reducing the optical feedback. An exact method for measuring the modal reflectivity of the antireflection coating to a laser diode is described. It is based on measurements of the spectrum modulation depth of the resulting superluminescent diode output spectrum at arbitrary injection current, and modal reflectivity of less than 3 × 10-4 is obtained.