Design and Management of Stray Light for Compact Final Optics Assembly on the High Energy Laser System

Figure 3

The calculating result of the optical characteristics of stray light shows (a) the superposition of stray light from two reflectors and (b) the superposition of stray light from four reflectors. Stray light from multiple reflectors will produce interference modulation, and the maximum order of interference modulation is 4 times. Therefore, the fluence of stray light in the analysis and control design, the modulation factor, should be multiplied by its intensity. The maximum fluence estimation can be multiplied by the maximum modulation factor 4.

(a)

(b)