Lolu chungechunge lwe-Beam Combiners lwenziwe yi-BK7 (H-K9L) noma i-Fused Silica. Luhlanganisa imisebe emibili ibe yinye, kungaba yi-ultra-violet, ebonakalayo, noma eseduze ne-infrared; luvumela abasebenzisi ukuxuba ukukhanya okungabonakali nokubonakalayo ngezindlela ezilula zokuvumelanisa.
Ubude be-Wavelength bugxile ekuhlinzekeni ngemikhiqizo yokukhanya enembile kakhulu iminyaka engama-20