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Using the OSICS T100 Module
OSICS User Manual 203
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IN
13.10.2 Measuring the Absolute Wavelength Accuracy
Subject This test procedure enables you to verify that the actual measured wavelength stays
within acceptable deviation range from the wavelength setting.
Before Starting • Make sure you have a wavemeter with ±1 pm resolution and a NIST-traceable
calibration (see section Preparing Performance Tests, p. 202 ) and jumper.
Procedure 1. Connect the OSICS T100 module to the wavemeter.
2. Set the OSICS T100 output power to 0 dBm.
3. Set the wavelength of the OSICS T100 tunable laser to the minimum value of the
wavelength range. The minimum wavelength depends on the T100 model you are
using (see section Specifying the Optical Emission Wavelength/Frequency, p. 180 ).
4. Set the wavelength step to +5 nm.
5. Enable the laser output by pressing the Enable button on the module front panel.
6. Compute the wavelength deviation of the T100 module and check that it is not
greater than ±0.2 nm compared with the wavelength reading of the wavemeter.
The absolute wavelength accuracy is the deviation between the wavelength setting
and the wavelength reading provided by the wavemeter at each measurement step.
7. Increment the T100 wavelength setting one wavelength step (+5 nm) and repeat
measurement step 6. to check that the wavelength deviation is not greater than
±0.2 nm.
8. Stop when you reach the T100 maximum wavelength limit.
If the minimum and maximum wavelength limits do not meet the specifications, you
can calibrate these values as explained in section Performing a Wavelength/Frequency
( λ /f) Calibration, p. 198 .
13.10.3 Checking the Wavelength Range and Output Power
Subject This procedure enables you to verify that the T100 module can achieve the rated output
power at both ends of the T100 wavelength range.
Before Starting Make sure you have a powermeter with a NIST-traceable calibration (see section
Preparing Performance Tests, p. 202 ) and jumper.
Procedure 1. Disable the T100 laser output.
2. Connect the T100 laser output to the optical power meter.
3. From the T100 Unit Setup menu, set the wavelength of the T100 tunable laser to the
minimum wavelength that corresponds to the type and power option of the T100
module you are using (see OSICS T100 Technical Specifications ).
4. Enable the T100 module laser output by pressing the Enable button.