Yenista Optics OSICS, User Manual

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Using the OSICS DFB Module
OSICS User Manual 95
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8.8 Testing the Performance of the DFB Module
Use the procedures described in this section to validate warranted specifications of the
OSICS DFB module, as needed.
During the performance verification, the settings for wavelength and power may not
agree with the measured values. If this occurs, you may calibrate wavelength and power
settings as explained in section Performing a Wavelength Calibration, p. 92 and section
Performing a Power Calibration, p. 93 .
Notwithstanding performance tests described in this section, we recommend performing
calibration of OSICS DFB modules over one-year intervals (see section Asking for a
Factory Recalibration, p. 94 ).
8.8.1 Preparing Performance Tests
Before Starting Make sure you have the following required equipment for conducting performance tests
on OSICS DFB modules:
The various types as well as the number of fiber-optic connectors needed may vary
depending on the type of equipment used and the distance between the test equipment
and the OSICS DFB modular optical source under test.
Procedure 1. In the OSICS Mainframe, install the DFB modules you want to test.
2. Turn-on the OSICS multifunction platform (see section Turning on the OSICS
Multifunction Platform and Accessing the System Status Screen, p. 29 ).
3. Let the OSICS multifunction platform and other test equipments run continuously for
2 hours at room temperature (within the specified operating temperature range) to
achieve proper equipment warm-up.
Equipment Minimum Requirement
Optical power meter Wavelength range: 1260 nm to 1640 nm
Optical spectrum analyzer (OSA) Wavelength range: 1260 nm to 1640 nm
Wavemeter Wavelength range: 1260 nm to 1640 nm
Jumper (x2) FC/APC to FC/PC or to FC/APC
In-line optical adapter FC to FC
• Disable the laser output before connecting or disconnecting a fiber
optic cable on the module (see section Enabling/Disabling the Light
Source of All Modules, p. 37).
• Do not look directly into the fiber end of an optical cable connected
to any optical output while the device is in use. This may cause
permanent eye damage.
WARNING