Anritsu MS9740B - Chapter 5 Measurement Functions; Measurement Functions

5-1
5
Measurement Functions
Measurement Functions
Chapter 5
MS9740B has various dedicated measurement functions for measuring
optical elements, optical amplifiers, wavelength multiplexers, etc. This
chapter explains how to use these functions.
Before using the measurement functions described in this chapter,
perform the following actions:
● Set measured levels to be displayed in absolute values.
Select
F6 Trace
–
f6 Graph
–
f1 Normal
.
● Set the trace type to Write or Fix.
Select
F6 Trace
–
f2 Trace Type
–
f1 Write
/
f2 Fix
.
The functions described in this chapter cannot be used when levels are
displayed in relative values.
Also, by setting the trace type to Calculate (
F6 Trace
–
f2 Trace Type
–
f3
Calculate
), you can use only the functions described in 5.4, “Measuring
PMD (Polarization Mode Dispersion)” and 5.9, “Measuring WDM Filter”.
5.1
Measuring DFB-LD (Distributed Feedback Laser Diode)
...................................................................................... 5-3
5.1.1 Setting Items ..................................................... 5-4
5.1.2 Calculation Method ........................................... 5-5
5.1.3 Procedure ......................................................... 5-6
5.2 Measuring FP-LD (Fabry-Perot Laser Diode) ............... 5-7
5.2.1 Setting Items ..................................................... 5-8
5.2.2 Calculation Method ........................................... 5-8
5.2.3 Procedure ......................................................... 5-9
5.3 Measuring LED (Light Emitting Diode) ....................... 5-10
5.3.1 Setting Items ................................................... 5-11
5.3.2 Calculation Method ......................................... 5-11
5.3.3 Procedure ....................................................... 5-12
5.4 Measuring PMD (Polarization Mode Dispersion) ........ 5-13
5.4.1 Setting Items ................................................... 5-14
5.4.2 Calculation Method ......................................... 5-15
5.4.3 Procedures ..................................................... 5-15
5.5 Measuring WDM (Wavelength Division Multiplexed)
Signals ........................................................................ 5-17
5.5.1 WDM Measurement Screen Display .............. 5-18
5.5.2 How to Set the Signal Measurement Method . 5-21
5.5.3 How to Set the Noise Measurement Method . 5-24
5.5.4 Calculation Method ......................................... 5-28
5.5.5 Procedures ..................................................... 5-31
5.6 Measuring Laser Diode Modules ................................ 5-33
5.6.1 How to Set the Signal Measurement Method . 5-35
5.6.2 How to Set the Noise Measurement Method . 5-39