Chapter 1 Overview
1-4
No.
Item
Specifications
1.6
−
20 dB width
SMSR
Optical attenuator
Attenuation
Accuracy
Resolution
1 nm or less
30 dB or more
Fig. 1.5-1 52M – 2.6G Pulse mask
Table 1.5-1 52M – 2.6G Pulse mask table
(need Option04)
0 to 30 dB
±
0.5 dB (0 to 10 dB),
±
1.0 dB (10.1 to 30 dB) (23
±
2°C)
0.1
dB
52M/156M
622M
2.5G/2.6G
X1/X4
0.15/0.85
0.25/0.75
−
X2/X3
0.35/0.65
0.40/0.60
0.40/0.60
Y1/Y2
0.20/0.80
0.20/0.80
0.25/0.75
Y
Mean level
of logical “1”
X
(0,0)
(1,0)
X
2
X
3
Y
1
-Y
1
1+Y
1
Y
2
Mean level
of logical “0”
(0,0.5)
(0,1)
X
1
X
4