Anritsu BERTWave MP2100B, Operation Manual, Page: 275 / 382

8.3 Operating O/E Converter
8-13
8
Operating Optical Interface
Adjustment method of Responsivity
1. Adjust the wavelength of the optical power meter to the optical
signal.
2. Measure unmodulated optical signal power with the optical power
meter.
3. Input the optical signal to the optical input connector.
4. Measure the Average Power (mW) or Average Power (dBm) of the
optical signal by using the Amplitude/Time function of the sampling
oscilloscope.
5. Display the O/E setting panel.
6. Set Wavelength to User.
7. Adjust the Responsivity value so that the Average Power value of the
optical signal measured by the Amplitude/Time function of the
sampling oscilloscope becomes equal to the value measured by the
optical power meter.
<
Adjusting Automatically by Auto Correction >
1. Adjust the wavelength of the optical power meter to that of the
optical signal.
2. Measure unmodulated optical signal power with the optical power
meter.
3. Input the optical signal to the optical input connector.
4. Display the O/E setting panel.
5. Set Wavelength to User.
6. Set the Input Power to the value of the optical signal power
measured by Step 2.
7. Press [Execute] to calibrate automatically.
8
When Auto Correction is completed, the values of Conversion Gain,
Responsivity, and System Conversion Gain are adjusted so that they
become equal to the values measured by the optical power meter.