Tektronix SD-42, User Manual

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Performance Check
3–4
SD-42 & SD-46 User Manual
7. On the SD-42/SD-46 use SELECT RANGE to select the1 V/
m
W range.
8. Check that the digital multimeter reads 100 mV
±
20 mV, which is equivalent
to 100 nW of optical input power.
This procedure checks the pulse width and the pulse amplitude.
WARNING.
Avoid eye exposure to the output of open-ended fibers/connectors.
Ensure all fibers are terminated prior to turning on an optical source.
1. Connect the equipment as shown in Figure 3–2.
CSA 803
OIG 502
Trigger
Optical Cable
SD-42/SD-46 SD-22/SD-26
Optical
Input
Rigid
U-link
Pretrig
Output
Optical
Output
Figure 3–2: Setup to Check Pulse Width and Pulse Amplitude
2. Switch on the OIG 502.
3. Initialize the oscilloscope.
4. On the sampling head lower channel, press SELECT CHANNEL, so that the
channel is ON.
5. Touch the vertical icon and adjust the Vert. Size to 100 mV/division. This
setting is equivalent to 3.5 mW/division optical (100 mV/div
×
35
m
W/mV).
Pulse Amplitude and
Pulse Width Check