FX86 CWDM Quad Laser Source User Manual
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3.0 Product Introduction
The FX86 CWDM Quad Laser Source is a handheld optical testing device for providing
calibrated laser radiation, to be used together with an optical power meter. The accompanying
power meter must be calibrated to one of the FX86 laser wavelengths. For the power meter
operations, please see its manual.
3.1 FX86 Overview
CWDM – Course Wavelength Division Multiplexing is a WDM technology characterized by
wide, 20 nm channel spacing and grid wavelengths with 1271 nm to 1611 (16 active channels)
and is typically used for shorter distances as found in city and access networks.
CWDM Spectrum Graph
The FX86 CWDM Quad Laser Source is specially engineered to test CWDM systems. A single
device can support up to 4 fixed wavelengths for OLS fiber optic network testing and
measurement, defined by the customer upon ordering. The wavelengths can be any 4 values
in the 1270 – 1610 nm range incremented by 20 nm, in any combination.
To make the fiber identification in a rack more convenient, the laser signal from FX86 with a
calibrated wavelength (see the CDWM set of calibrated wavelengths above) is also modulated
with the following frequencies:
•
CW (Continuous Wave)
•
270 Hz
•
330 Hz
•
1000 Hz
•
2000 Hz
