EXTERNAL POWER METER
Specifications
a
FOT-932 FOT-932X FOT-933
Detector type Ge GeX InGaAs
Measurement range (dBm) 10 to –70 26 to –55 6 to –73
Range displayed (dBm) Down to –77 Down to –65 Down to –80
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 (dB)
b
0.01 0.01 0.01
Calibrated wavelengths 40 42 40
Recommended recalibration period (years) 3 3 3
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
(nm)
e
1310 ± 20 1310 ± 20 1310 ± 20 850 ± 25 850 ± 25
1550 ± 20 1550 ± 20 1490 ± 10 1300 +50/–10 1300 +50/–10
1625 ± 10 1550 ± 20
Emitter type Laser Laser Laser LED LED
Minimum output power (dBm)
e
–1/–1 –1/–4/–7 –1/–7/–4 –27/–27 (50/125 μm)
i
–21/–21 (62.5/125 μm)
i
Spectral width (nm)
f
) 5/) 5 ) 5/) 5/) 5 ) 5/) 5/) 5 50/135 50/135
Stability (8 hours) (dB)
g
± 0.05 ± 0.05 ± 0.05 ± 0.05 ± 0.05
FASTEST
Standard -4 -5 -12C (second port) -12D (second port)
Wavelengths (nm) 1310 1310 1310 850 850
1550 1550 1490 1300 1300
1625 1550
Loss range (dB)
h
60 56 56 40 46
Loss precision (repeatability) (dB)
i
side-by-side 0.15 0.15 0.15 0.15 0.15
loopback 0.25 0.25 0.25 0.25 0.25
Length measurement range (km) 200 200 200 5 5
Length measurement uncertainty
j
±(10 m + 1 % x length)
DEDICATED ORL
All SM Wavelengths
ORL range (APC / UPC) (dB) 65/55
ORL uncertainty (dB)
k
± 0.5
Resolution (dB)
b
0.01
TALK SET
Emitter type Laser
Wavelength (nm) 1550 ± 20
Dynamic range at 1550 nm (dB) 45
Dynamic range MM (dB)
l
40
VFL
i
Emitter type Laser
Wavelength (nm) 650
Output power (dBm) 3
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