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Wavelength
Range 700 to 1650 nm
(182 to 428 THz)
1270 to 1650 nm
(182 to 236 THz)
1270 to 1650 nm
(182 to 236 THz)
For lines separated by
less than the specified
amount wavelength
accuracy is reduced.
Absolute accuracy
± 3 ppm ± 2 ppm ± 0.2 ppm
• At 1550 nm ± 0.005 nm ± 0.003 nm ± 0.3 pm
• At 1310 nm ± 0.004 nm ± 0.003 nm ± 0.3 pm
• For laser lines
separated by
≥ 30 GHz ≥ 15 GHz ≥ 10 GHz
Differential accuracy 1 ± 2 ppm ± 1 ppm ± 0.15 ppm
Minimum resolvable separation 1 (equal power lines input)
20 GHz 10 GHz 5 GHz
• At 1550 nm 0.16 nm 0.08 nm 0.04 nm
• At 1310 nm 0.11 nm 0.06 nm 0.03 nm
• For laser lines
separated by
≥ 30 GHz ≥ 15 GHz ≥ 10 GHz
Display resolution
0.001 nm 0.0001 nm
Fast update mode 0.01 nm N/A
Units nm (vacuum or standard air) cm -1 THz
Power
Calibration accuracy 5 ± 0.5 dB (at ± 30 nm
from 780 nm 1
1310 nm and 1550 nm)
± 0.5 dB
(at ± 30 nm from 1310 nm and 1550 nm)
Flatness 1 ± 0.2 dB
(1200 to 1600 nm)
± 0.2 dB
(1270 to 1600 nm)
30 nm from any
wavelength
± 0.5 dB
(700 to 1650 nm)
± 0.5 dB
(1270 to 1650 nm)
Linearity ± 0.3 dB
(1200 to 1600 nm)
± 0.3 dB
(1270 to 1600 nm)
Lines above –30 dBm
Polarization dependence ± 0.5 dB
(1200 to 1600 nm)
± 0.5 dB
(1270 to 1600 nm)
± 1.5 dB 1
(700 to 1650 nm)
± 1.0 dB 1
(1600 to 1650 nm)
Display resolution 0.01 dB
Units dBm mW µW
Sensitivity
Single line input –20 dBm
(700 to 900 nm)
–40 dBm
(1270 to 1600 nm)
–32 dBm
(1270 to 1600 nm)
–25 dBm
(800 to 1200 nm)
–30 dBm
(1600 to 1650 nm)
–22 dBm
(1600 to 1650 nm)
–40 dBm 6
(1200 to 1600 nm)
–30 dBm 6
(1600 to 1650 nm)
Multiple lines input 1 30 dB below total input power but not less than single line input sensitivity
Selectivity 1 25 dB spacing ≥ 100 GHz 25 dB spacing ≥ 50 GHz 25 dB spacing ≥ 90 GHz
10 dB spacing ≥ 30 GHz 10 dB spacing ≥ 15 GHz 10 dB spacing ≥ 10 GHz
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