TECHNICAL SPECIFICATIONS
External Power Meter FTB-3932 FTB-3932X FTB-3933
Detector type Ge GeX InGaAs
Measurement range (dBm) 10 to –70 26 to –55 6 to –73
Uncertainty
b, c
± 5 % ± 0.1 nW ± 5 % ± 3 nW ± 5 % ± 0.05 nW
Wavelength range (nm) 800 to 1650 800 to 1650 800 to 1650
Display resolution
b
(dB) 0.01 0.01 0.01
Calibrated wavelengths 40 42 40
Recommended recalibration
period (years)
333
Automatic offset nulling
d
Yes Yes Yes
Measurement-distance units kilometers, meters, kilofeet, feet, miles
Sources Standard –4 –5 –12C (second port) –12D (second port)
Wavelengths
e
(nm) 1310 ± 20
1550 ± 20
1310 ± 20
1550 ± 20
1625 ± 10
1310 ± 20
1490 ± 10
1550 ± 20
850 ± 25
1300 +50/–20
850 ± 25
1300 +50/–20
Emitter type Laser Laser Laser LED LED
Minimum output power
e
(dBm) –1/–1 –1/–4/–7 –1/–7/–4
–27/–27 (50/125 μm)
i
–21/–21 (62.5/125 μm)
i
Spectral width
f
(nm) ) 5/) 5 ) 5/) 5/) 5 ) 5/) 5/) 5 50/135 50/135
Stability
g
(8 hours) (dB) ± 0.05 ± 0.05 ± 0.05 ± 0.05 ± 0.05
FasTesT Standard –4 –5 –12C (second port) –12D (second port)
Wavelengths (nm) 1310
1550
1310
1550
1625
1310
1490
1550
850
1300
850
1300
Loss range
h
(dB) 60 56 56 40 46
Loss precision
i
(repeatability) (dB)
side-by-side
loopback
0.15
0.25
0.15
0.25
0.15
0.25
0.15
0.25
0.15
0.25
Length measurement
range (km)
200 200 200 5 5
Length measurement
uncertainty (typical)
j
± (10 m + 1 % x length)
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