8163A/B, 8164A/B, 8166A/B User’s Guide 135
Tunable Lasers 5
Attenuator
If your tunable laser has an built-in optical attenuator, move to
[Power
Mode], press Enter, move to <Automatic>, and press Enter.
1 Move to the power parameter, [P], and press [Pwr unit].
2 Move to <W> and press Enter.
3Press Enter to start editing the output power value.
4 Enter 555.000, press [Unit+] or [Unit-], as required, to select
μW as the
power units, and press Enter.
How to Set the Optical Output
To set the Optical Output of a Tunable Laser module with two optical
outputs:
1 Press [Details].
2Move to [Optical Output] and press Enter.
3 Use the Modify Knob to move to one of the following:
• <High Power (2)>, a high power optical output, for example, for use
in tesing Erbium Doped Fiber Amplifiers (EDFAs), you see a screen
similar to Figure 77,
• <Low SSE (1)>, a lower power optical output with low Source
Spontaneous Emission (SSE), for example, for use in passive
component test, you see a screen similar to Figure 78 on page -137,
• <Both (master:2)>, where both optical outputs can be enabled but
only the output of the high power optical output can be regulated,
and
• <Both (master:1)>, where both optical outputs can be enabled but
only the output of the low SSE optical output can be regulated.
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