User`s guide

Power Tests Performance Tests
Agilent 81600B Tunable Laser Source Family, Fourth Edition 121
b Upper Transmission Band: λ
3
... λ
4
•TLS_λ
3
= TLS_λ
0
+ 0.5 - Attenuation Band
= TLS_λ
0
+ 1 nm
•TLS_
λ
4
= TLS_λ
0
+ 0.5 x Upper Transmission Band
= TLS_λ
0
+ 1 nm + 3 nm
8 Determine the maximum transmitted power value inside the
transmission band.
a Record Spectrum.
b Using the marker, find the maximum transmitted power
(max_SSE_power) within the Lower and Upper Transmission Bands.
Change
λ by using the RPG and note the maximum power value with-
in both the Lower and Upper Transmission Bands (this is a single val-
ue). Note this value in the Test Record. Check the associated
wavelength from the Optical Specrum Analyzer,
OSA@max_SSE_power, and note this value in the Test Record.
9 Set the marker of the OSA to OSA@max_SSE_power.
Change [
λ], the output wavelength of the TLS, so that the peak
wavelength of the spectrum is at the OSA marker.
Change [
λ], the output wavelength of the TLS, to the wavelength of
highest SSE (TLS@max_SSE_power) using the approximation:
TLS@max_SSE_power = OSA@max_SSE_power + 0.5 nm]
10 Determine TLS@max_SSE_power as follows:
Set the Optical Spectrum Analyzer:
a Set the Sensitivity to -68 dBm.
b Set the resolution bandwidth to 0.5 nm.
c Set the center wavelength to OSA@max_SSE_power.
d Set the reference level to 0 dBm.
e Set the span to 6 nm.
f Record the spectrum.
11 Within the total spectrum, determine peak power, power@SSE_peak,
and note the absolute value, |power@SSE_peak| in the Test Record.
Wavelength Specific These results are at the wavelength the TLS is
set to for this measurement, and the OSA measurements, respectively.
NOTE