N4376B Datasheet, PDF (6/16 Pages) Agilent(Hewlett-Packard) – 20 GHz and 26.5 GHz Multimode Lightwave Component Analyzer

Measurement capabilities
3dB cut-off frequency (S21),
Responsivity (S21),
Electrical reflection (S11 or S22),
Insertion Loss (IL),
Transmission bandwidth,
all electrical S-parameter measurements.
Target test devices
Transmitter (E/O)
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Receiver (O/E)
‡ PIN diodes
‡ Avalanche photodiodes (APD)
‡ Receiver optical subassemblies (ROSA)
Optical (O/O)
‡ Passive optical components
‡ Optical multimode fibers
‡ Optical transmission systems
Agilent N4376B Specifications
Measurement conditions
‡ Modulation frequency range from 10 MHz to 20.0 GHz
‡ Foreward RF power +3 dBm
‡ Reverse RF power 0 dBm
‡ 100 Hz IFBW (“Reduce IF bandwidth at low frequency”
enabled) with modulation frequency step size 10 MHz
and measurement points on a 10 MHz raster (if not
differently stated)
‡ Network analyzer set to “stepped sweep – sweep
moves in discrete steps”
‡ All network-analyzer ports configured in standard
coupler configuration (“CPLR ARM” to “RCVB B in”,
“SOURCE OUT” to “CPLR THRU”)
‡ After full two-port electrical calibration using an
Electronic Calibration Module, Agilent N4691B, at
constant temperature (±1° C)
‡ Modulator bias optimization set to “continous sweep”
‡ Measurement frequency grid equals electrical
calibration grid
‡ DUT signal delay ≤ 0.1/IF-BW
‡ Specified temperature range: +20° C to +26° C.
‡ After warm-up time of 90 minutes
‡ Using high quality electrical and optical connectors
and RF cables in perfect condition
‡ 50 μm FC/APC to FC/PC patchcord at the input and
output
‡ Launched power distribution according to
IEEE 802.3ae - 2002, see fig 1
‡ Test performed using an optical reference source with
return loss better 45 dB, spectral width FWHM
< 10MHz and InGaAs detector
100
90
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70
60
50
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10
0
0
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Fig 1; IEEE 802.3ae launch conditions measured with 3 examples
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