8163A/B, 8164A/B, 8166A/B User’s Guide 175
Compact Tunable Lasers 6
How to Use a compact Tunable Laser
The User Interface
Compact TLS modules utilize the User Interface described in the
Tunable
Lasers
on page 133. A description of how to use their modulation features
given following
How to Modulate a Signal on page 155.
SBS Suppression
SBS Suppression is a frequency modulation that allows you to launch high
optical output power into longer fibers without the impairment to
time-domain measurements that can be associated with intensity
(amplitude) modulation.
To use the SBS Suppression control (SBS-C) feature:
Refer to Figure 97 on page -176.
1 Move to the Tunable Laser channel and press the [Details] softkey.
2 Set appropriate values in the Freq. Modulation box:
• The Frq Mod scr > SBS-Ctrl field is fixed, since SBS-Ctrl is the only
frequency modulation source currently available.
• Set a value for the SBS suppression control frequency, SBSC frq,
appropriate to your application.
• Set a value for the SBS suppression control level, SBSC lvl,
appropriate to your application.
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