此案例是ASAP的一个光纤建模及分析案例,其中涉及到分析,方向, 显示, 选择, 点的描述。并演示了射线集的方向图,极坐标和笛卡尔坐标图。
代码:
SYSTEM NEW
RESET
FRESNEL AVERAGE
MEDIA
2.4 'ZNSE'
SURFACES
PLANE X 0 ELLIPSE 0.125
OBJECT 'ENTRANCE_FACE'
INTERFACE COAT +BARE AIR ZNSE
SURFACES
TUBE X 0 2@.125 8 2@.125
OBJECT 'FIBER_BODY'
INTERFACE COAT -BARE AIR ZNSE
SURFACES
PLANE X 8 ELLIPSE 0.125
OBJECT 'EXIT_FACE'
INTERFACE COAT +BARE AIR ZNSE
!! 光纤建模
WINDOW Z -4 4 X -1.2 9
PIXELS 21
HALT 1000
BEAMS INCOHERENT GEOMETRIC
GRID ELLIPTIC X 0 -4@.125 1 10
SOURCE POSITION -.5 0 0
MOVE TO X -.5
PROFILES OVERLAY 'ZnSe FIBER OPTIC w/POINT SOURCE'
TRACE PLOT
!! 少量光线光源建模并输出带光源光纤图
RAYS 0
GRID ELLIPTIC X 0 -4@.125 201 201
SOURCE POSITION -.5 0 0
MOVE TO X -.5
TRACE
!!清除光线,使用大量光线分析用到的光源建模
SELECT ONLY 0 A
WINDOW Y -2@.3 Z -2@.3 !! Just bigger than angular cone
SPOTS DIRECTION ATTRIBUTE 1 'ANGULAR DISTRIBUTION OF EXITING RAYS FROM ZnSe FIBER'"
SPOTS DIRECTION ATTRIBUTE 0
DISPLAY
RADIAL
DIRECTION 'POLAR PLOT OF RADIALLY AVERAGED INTENSITY FROM ZnSe FIBER'
DIRECTION UNWRAP 'CARTESIAN PLOT OF RADIALLY AVERAGED INTENSITY'
!!选择需要的分析并输出图像,分析结果在下方给出
RETURN
带光源光纤图
光纤射出射线的角度分布
辐射平均强度极坐标图
径向平均强度的直角坐标系图