Investigation of the Atmospheric Attenuation Factors in FSO Communication Systems Using the Taguchi Method

Table 1

Refractive indices and diameters of atmospheric gases.

Gas	Refractive index (λ = 850 nm)	Refractive index (λ = 1064 nm)	Refractive index (λ = 1550 nm)	Diameter (pm)
	1.00029596	1.0002952	1.00029442	112
	1.00024932	1.0002484	1.00024763	96
	1.00027950	1.0002820	1.00027808	142
	1.00044397	1.0004419	1.00043822	232.42
	1.00006610 (0.5462 μm)	1.00006610 (0.5462 μm)	1.00006610 (0.5462 μm)	76
	1.000034787	1.00003475	1.000034708	62
	1.0004365 (1.68 μm)	1.0004365 (1.68 μm)	1.0004365 (1.68 μm)	398
	1.00013718	1.0001367	1.00013617	102
	1.0004266 (0.6234 μm)	1.0004266 (0.6234 μm)	1.0004266 (0.6234 μm)	170
	1.3290	1.3260	1.3180	94.2