Optical Spectrum Analyzer
519
C Formulas Used with Your
Optical Spectrum Analyzer
The following formulas are used in the various tests available with your
OSA module.
EDFA Noise Figure Calculation
According to EDFA theory, this measurement is obtained using the
following equation:
Where
P
ASE
is the power of the spontaneous emission amplified by the EDFA,
P
SSE
is the power of the spontaneous emission of the source,
G is the gain at this channel’s wavelength,
h is Plank’s constant (6,6256 x 10
-34
),
ν
is the frequency of the channel, and
B is the noise equivalent bandwidth, as calibrated at this channel’s
wavelength.
EDFA noise figure
P
ASE
GP
SSE
–
Gh
ν
B
------------------------------------
1
G
----
+
=
J s
⋅
Summary of Contents for FTB-5240BP
Page 1: ...User Guide Optical Spectrum Analyzer for FTB 500 FTB 5240S 5240BP...
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Page 282: ...Testing DWDM Systems 274 FTB 5240S 5240BP Starting a Measurement Drift Mode DFB Mode...
Page 391: ...Managing Results Optical Spectrum Analyzer 383 Managing EDFA Test Results...
Page 394: ...Managing Results 386 FTB 5240S 5240BP Managing EDFA Test Results...
Page 407: ...Managing Results Optical Spectrum Analyzer 399 Managing Trace Files 2 Press New...
Page 414: ...Managing Results 406 FTB 5240S 5240BP Managing Trace Files...
Page 424: ...A sample Drift txt report is shown below...
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Page 437: ...Troubleshooting Optical Spectrum Analyzer 429 About 2 Press About...
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