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The Keysight N4375E Lightwave Component Analyzer (LCA) is used to characterize electro-optical components for 10 Gbit/s, 40 Gbit/s and 100 Gbit/s transmission systems. Using the advanced measurement capabilities of the new N52xxB series PNA Microwave Network Analyzers, all relevant S-parameter related characteristics of the device under test can be qualified from 10 MHz to 26.5 GHz. Transmitters and receivers are typically tested for their frequency response over a range of bias voltages, optical input power levels, operating currents and ambient temperatures. The LCA’s built-in optical power meter allows checking and controlling the user-selectable operating power, but also gives an indication of a bent fiber or a bad connection. The optional, auxiliary PMF input (option 050) enables the measurement of optically filtered/ demultiplexed O/E devices at specific wavelengths as proposed by the IEEE 802.3 standards and MSAs, or the verification of S-parameters over wavelength using an external tunable laser.
Specifications.
Optical test set.
Operation frequency range: 10 MHz to 26.5 GHz.
LCA optical input.
Operating input wavelength range: 1250 nm to 1640 nm.
Maximum linear average input power: +4 dBm (Input 1), +14 dBm (Input 2).
Maximum safe average input power: +7 dBm (Input 1), +17 dBm (Input 2).
Optical return loss (typical): > 27 dBo.
Average power measurement range: -25 dBm to +4 dBm (optical input 1), -15 dBm to +14 dBm (optical input 2).
Average power measurement uncertainty (typical): ±0.5 dBo.
LCA optical output.
Optical modulation index (OMI) at 10 GHz (typical): > 27% @ +5dBm RF, > 47% @ +10 dBm RF power.
Output wavelength: 1310 ± 20 nm (Opt -100, -102), 1550 ± 20 nm (Opt -101, -102).
Average output power range: -2 dBm to +4 dBm.
Average output power uncertainty (typical): ± 0.5 dBo.
Average output power stability, 15 minutes (typical): ± 0.5 dBo.
External optical source input (-050).
Recommended optical input power: +8 to + 15 dBm.
Optical input power damage level: +20 dBm.
Typical loss at quadrature bias point: 9 dB.
Operating input wavelength range: 1290 nm to 1610 nm.
LCA RF test port input.
Maximum safe input level at port A or B: +15 dBm RF, 7V DC.
Options.
-100; 1310 nm source optical test set.
-101; 1550 nm source optical test set.
-102; 1310 nm and 1550 nm source optical test set.
-220; 26.5 GHz, 2 ports, single source PNA (N5222B-200) and RF cables.
-221; 26.5 GHz, 2 ports, single source PNA (N5222B-201) with configurable test set and RF cables.
-222; 26.5 GHz, 2 ports, single source PNA (N5222B-219) with configurable test set, extended power range,
bias-tees and RF cables.
-420; 26.5 GHz, 4 ports, dual source PNA (N5222B-400) and RF cables.
-421; 26.5 GHz, 4 ports, dual source PNA (N5222B-401) with configurable test set and RF cables.
-422; 26.5 GHz, 4 ports, dual source PNA (N5222B-419) with configurable test set, extended power range,
bias-tees and RF cables.
-229; Integration of customer's 26.5 GHz, 2 port PNA (N5222A/B or N5242A/B) with any configuration and RF cables .
-249; Integration of customer's 26.5 GHz, 4 port PNA (N5222A/B or N5242A/B) with any configuration and RF cables .
-050; External optical source input.
-021; Straight FC/PC SM.
-022; Angled FC/APC SM.
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