An optical code generating device for security access system application is presented. The code generating device constr......

透镜耦合器的耦合系数对横向错位十分敏感，因而容易受震动等环境条件的影响。介绍了一种把ＣＯ２激光器的１０．６μｍ辐射耦合到Ｇｅ－Ａｇ－Ｎｉ空心波导的锥形耦器......