1-10
Quick Start
Measuring Fiber Devices
Assumptions required for this optimization method
Assumption 1.
The group delay can be modeled by the quadratic equation:
Where S
0
is the dispersion slope,
λ
is the wavelength,
λ
0
is the zero dispersion wave-
length, and L is the fiber length. The precise details of the quadratic fit to the data are not
critical; the only requirement is that the group delay curve should have the shape of a par-
abolic curve. In fact, the results presented here are valid even if the three-term or the five-
term Sellmeier fits are used, as those two models also have the parabolic shape. This
assumption is valid for systems consisting mostly of dispersion-shifted fiber.
Assumption 2.
The dispersion slope S
0
[in ps/(nm2×km)] is known. For example, the dis-
persion slope, S
0
, is approximately 0.07 ps/ (nm
2
×km) for most dispersion shifted fiber. The
zero dispersion wavelength
λ
0
need not be known but should lie within the spectral range
of the measurement.
τ
g
(λ) = (λ − λ
ο
)
2
L
S
o
2
Содержание 86037B
Страница 1: ...User s Guide HP 86037B Chromatic Dispersion Test System ...
Страница 31: ...2 13 Operation The Main Window Figure 2 4 Repeat Measurement Selector ...
Страница 72: ...3 16 Normalization Setting Normalization Preferences ...
Страница 94: ...4 22 Remote Control TES Parameters Main chromatic dispersion screen ...
Страница 100: ...4 28 Remote Control TES Parameters CD and Gain Measurement Settings Dialog Box ...
Страница 102: ...4 30 Remote Control TES Parameters Length Measurement Settings Dialog Box ...
Страница 104: ...4 32 Remote Control TES Parameters Normalization Settings Dialog Box ...
Страница 106: ...4 34 Remote Control TES Parameters New Normalization Button Dialog Box ...
Страница 120: ...4 48 Remote Control Output Parameters ...
Страница 158: ...5 38 Maintenance Hewlett Packard Sales and Service Offices ...
Страница 165: ...6 7 Installation Installation 2 3 4 5 1 8 7 Fan Pack 6 6 Power Distribution Assembly 1 7 Power Distribution Assembly 2 ...
Страница 170: ...6 12 Installation Installation ...
Страница 174: ...7 4 Reference Theory of Operation Figure 7 3 HP 86037B Block Diagram Options 121 and 122 ...
Страница 175: ...7 5 Reference Theory of Operation Figure 7 4 The HP 86037B Option 114 block diagram ...
Страница 190: ...7 20 Reference System Options ...
Страница 191: ...8 Specifications 8 3 Regulatory Information 8 7 Specifications and Regulatory Information ...
Страница 198: ...8 8 Specifications and Regulatory Information Regulatory Information Declaration of Conformity ...
Страница 204: ...Index 6 Index ...