Appendix
Standard Models
146
GI Optical Fiber Cables for Optical Ring Networks
Use graded index (GI) optical fiber cables with the following optical characteristics.
50/125
µ
m AGF
Item
Min.
Typical
Max.
Unit
Conditions
Numerical
aperture
---
0.21
---
---
Theoretical value
Transmission loss
---
---
3.0 Lf
dB
0.5 km
x
Lf
λ
= 0.8-
µ
m band
3.0 Lf + 0.2
0.2 km
x
Lf < 0.5 km
Ta = 25
°
C
3.0 Lf + 0.4
Lf < 0.2 km
Connection loss
---
---
1.0
λ
= 0.8-
µ
m band, 1 location
Transmission
band
500
---
---
MHz
S
km
λ
= 0.85
µ
m (LD)
Lf: Fiber length in km, Ta: Ambient temperature,
λ
: Center wavelength of measurement light source
62.5/125
µ
m AGF
Item
Min.
Typical
Max.
Unit
Conditions
Numerical
aperture
---
0.28
---
---
Theoretical value
Transmission loss
---
---
3.5 Lf
dB
0.5 km
x
Lf
λ
= 0.8-
µ
m band
3.5 Lf + 0.2
0.2 km
x
Lf < 0.5 km
Ta = 25
°
C
3.5 Lf + 0.4
Lf < 0.2 km
Connection loss
---
---
1.0
λ
= 0.8-
µ
m band, 1 location
Transmission
band
200
---
---
MHz
S
km
λ
= 0.85
µ
m (LD)
Lf: Fiber length in km, Ta: Ambient temperature,
λ
: Center wavelength of measurement light source
Connectors for GI Cable for Optical Ring Networks
Use ST connectors.
