Exfo FTB-5600 Distributed PMD Analyzer Bedienungsanleitung Seite 123
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Distributed PMD Analyzer 117
CAcquisition Data
The purpose of the acquisition data is to build a PMD cumulative curve.
This curve is build from OTDR traces taken at multiple frequencies or
wavelengths, each being launched with a particular polarisation state.
The cumulative PMD from 0 to z
n
is deduced from the mean-square (ms)
value of the K random transmission differences divided by a relative
variance of the traces. The mean-square (ms) value is computed
according to the following equation:
More precisely, in practice each of the two traces in each pair is acquired
twice consecutively in time, thus producing a repeated pair having a
difference ΔT'
k
(z
n
) which may differ somewhat from ΔT
k
(z
n
).
The P-OTDR traces P
j
(z
n
) as a function of distance z are acquired for many
different random and independent combinations of optical central
frequency ν
k
and I/O-SOP. The transmission T
j
(z
n
) of the analyzed light is
computed from the OTDR traces measured from two photodetectors,
P
xj
(z
n
) and P
yj
(z
n
), point by point as,
For the sake of simplicity, the (z
n
) notation of distance has been dropped.
The P
x
traces comes from the first branch of the PBS and the P
y
traces,
comes from the other branch of the PBS.
ΔT
ms
z
n
()
1
σ
r
2
z
n
()
----------------
ΔT
k
z
n
()ΔT′
k
z
n
()〈〉
k
=
T
j
P
xj
P
xj
P
yj
+
---------------------=
T
j
′
P
xj
′
P
xj
′
P
yj
′
+
------------------------=
- FTB-5600 1
- Contents 3
- Certification Information 5
- DECLARATION OF CONFORMITY 6
- 1 Introducing the FTB-5600 7
- Distributed PMD Analyzer 7
- 4 FTB-5600 10
- Frequently Used Terms 10
- Term Definition 10
- 2 Safety Information 13
- 3 Getting Started with your 15
- 10 FTB-5600 16
- Distributed PMD Analyzer 11 17
- Turn retaining screw knob 17
- FTB-500 left panel 17
- 12 FTB-5600 18
- Distributed PMD Analyzer 13 19
- Application 20
- Exiting the Application 22
- Distributed PMD Analyzer 19 25
- 20 FTB-5600 26
- Distributed PMD Analyzer 21 27
- 2. Select the General tab 28
- Setting up the Graph Display 29
- 2. Select the Display tab 30
- Setting up Storage Options 33
- ³ Cumulative PMD 35
- ³ PMD coefficient 35
- 30 FTB-5600 36
- Setting up Cable Information 37
- 32 FTB-5600 38
- Distributed PMD Analyzer 35 41
- 36 FTB-5600 42
- Performing an Acquisition 42
- Difference between 44
- 40 FTB-5600 46
- Distributed PMD Analyzer 41 47
- 42 FTB-5600 48
- 44 FTB-5600 50
- 46 FTB-5600 52
- Distributed PMD Analyzer 47 53
- 48 FTB-5600 54
- Distributed PMD Analyzer 49 55
- 50 FTB-5600 56
- Distributed PMD Analyzer 51 57
- 52 FTB-5600 58
- Distributed PMD Analyzer 53 59
- 54 FTB-5600 60
- 5 Managing Results 61
- 56 FTB-5600 62
- Opening an Existing File 63
- Managing Results 64
- 3. Press Open 64
- Using Zoom Controls 68
- Section Event Table 69
- 64 FTB-5600 70
- CumulPMDSectionFirstValue 70
- Section Status 71
- 66 FTB-5600 72
- 68 FTB-5600 74
- Distributed PMD Analyzer 69 75
- Marker A 75
- Marker B 75
- Editing Sections 76
- 3. Press Split 79
- 74 FTB-5600 80
- 76 FTB-5600 82
- 78 FTB-5600 84
- Adding Comments to Segments 85
- 3. Press Edit Comments 86
- (Delta PMD Tab) 87
- 82 FTB-5600 88
- Estimating Results 89
- 84 FTB-5600 90
- Distributed PMD Analyzer 87 93
- 2. Press Settings 94
- Viewing Trace Information 95
- 3. Select the Analysis tab 96
- 4. Press Reanalyze 96
- 94 FTB-5600 100
- Generating Reports 100
- 6 Maintenance 101
- MPORTANT 102
- Recalibrating the Unit 104
- Recycling and Disposal 105
- 7 Troubleshooting 107
- FTB-5600-XX 108
- Transportation 109
- Liability 112
- Service and Repairs 114
- Distributed PMD Analyzer 109 115
- A Technical Specifications 117
- B Distributed Cumulative PMD 119
- Measurement Theory 119
- CAcquisition Data 123
- 118 FTB-5600 124
- Distributed PMD Analyzer 119 125
- 120 FTB-5600 126
- D Optimizing Measurements 127
- 122 FTB-5600 128
- Perform Multiple Measurements 129
- Acquisition 130
- Optimizing Measurements 132
- Distributed PMD Analyzer 127 133
- 128 FTB-5600 134
- Distributed PMD Analyzer 129 135
- 130 FTB-5600 136
- Use a Receive Fiber 140
- Distributed PMD Analyzer 135 141
- Distributed PMD Analyzer 137 143
- ₼⦌␂ℝ☀⹂䓸德棟Ⓟ䤓屓⸩ 144
- MARKING REQUIREMENTS 145
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