Modeling Free Space Optical Systems
Modeling Free Space Optical Systems
Modeling Free Space Optical Systems
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15 Degree Divergence<br />
10 Degree Divergence<br />
5 Degree Divergence<br />
4 10 4<br />
2 10 4<br />
Gaussian Beam<br />
Lenslet<br />
0<br />
6 10<br />
4<br />
4<br />
4 10 4<br />
2 10 4<br />
•At Second Lenslet Plane<br />
•Blue is off-axis clipped beam<br />
•Red is on-axis clipping<br />
•Approximately 40 μm offset<br />
System Analysis with Different<br />
VCSEL Beam Divergence<br />
VCSEL 1 μm Mechanical<br />
Tolerancing - Scalar Analysis<br />
0 2 10 4<br />
Clipped Beam<br />
1<br />
0.5<br />
0<br />
0.5<br />
1 μm<br />
508 μm<br />
250 μm Lens<br />
4 10 1<br />
1<br />
Uint<br />
0.5 0 0.5 1<br />
4<br />
6 10 4<br />
0.4<br />
0.2<br />
4 10<br />
5<br />
5<br />
0<br />
CAN NOT MODEL<br />
NEED SCALAR MODELS…<br />
20 mm<br />
2 10 5<br />
1 μm<br />
40 μm<br />
508 μm<br />
0 2 10 5<br />
4 10 5<br />
Final Intensity Distribution on<br />
the 80mm detector<br />
Intensity Distribution Contour<br />
At 2nd Lenslet Plane
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