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Measurement:
Return loss
Side-mode suppression ratio
Keysight N777-C Series Tunable Laser Family User's Guide
Figure 22
Conditions:
Uninterrupted tunable laser source output power, constant power setting,
constant temperature. Other conditions as specified.
Using a wavelength meter, averaging time
Specifies the ratio of the optical power incident to the tunable laser source
output port at the wavelength set on the tunable laser source, to the
power reflected from the tunable laser source output port.
Conditions:
Tunable laser source output off.
The ratio of optical power in the main mode to the optical power of the
highest sidemode, expressed in dB:
Conditions:
As specified.
Relative wavelength accuracy.
Definition of Terms
≥
1 s.
3
53
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