Exfo PSO-100 Series Optical Sampling Oscilloscopes Manual do Utilizador Página 1

User GuideOptical Sampling Oscilloscope SeriesPSO-100

Introducing the PSO-100 Optical Sampling Oscilloscope Series2 PSO-100IMPORTANTAll instruction or information in this user documentation pertain to bot

Troubleshooting92 PSO-100Solving Common ProblemsThe sampled data looks very noisy, jittery or distorted. The software does not seem to be able to sync

TroubleshootingOptical Sampling Oscilloscope 93Solving Common ProblemsMy short RZ pulses look like an eye diagram.It is difficult to correctly synchro

Troubleshooting94 PSO-100Solving Common ProblemsThe LED indicator on the front panel is off even if the unit is turned on.AC adapter is not plugged in

TroubleshootingOptical Sampling Oscilloscope 95Contacting the Technical Support GroupContacting the Technical Support GroupTo obtain after-sales servi

Troubleshooting96 PSO-100TransportationTransportationMaintain a temperature range within specifications when transporting the unit. Transportation dam

Optical Sampling Oscilloscope 977 WarrantyGeneral InformationEXFO Inc. (EXFO) warrants this equipment against defects in material and workmanship for

Warranty98 PSO-100LiabilityLiabilityEXFO shall not be liable for damages resulting from the use of the product, nor shall be responsible for any failu

WarrantyOptical Sampling Oscilloscope 99ExclusionsExclusionsEXFO reserves the right to make changes in the design or construction of any of its produc

Warranty100 PSO-100Service and RepairsService and RepairsEXFO commits to providing product service and repair for five years following the date of pur

WarrantyOptical Sampling Oscilloscope 101EXFO Service Centers WorldwideEXFO Service Centers WorldwideIf your product requires servicing, contact your

Introducing the PSO-100 Optical Sampling Oscilloscope SeriesOptical Sampling Oscilloscope 3PSO-100 Optical Sampling Oscilloscope Series Basic TheoryPS

Optical Sampling Oscilloscope 103A Technical SpecificationsIMPORTANTThe following technical specifications can change without notice. The information

Optical Sampling Oscilloscope 105B Burst Mode MeasurementsThe burst mode is very useful for example in circulating loop experiments. For this function

Burst Mode Measurements106 PSO-100Then, select Gated from the Clock menu. A window pops up, according to the figure below.Insert the burst period, dut

Burst Mode MeasurementsOptical Sampling Oscilloscope 107The yellow samples are then visualized in an eye diagram in the lower window, while the white

Optical Sampling Oscilloscope 109C Measurement DefinitionsThe measurement definitions essentially follow the conventional standard from electrical sam

Measurement Definitions110 PSO-100One LevelOne LevelThe one level, Pone, is the logic one level in the eye diagram. The mean level within the histogra

Measurement DefinitionsOptical Sampling Oscilloscope 111Signal-to-Noise RatioSignal-to-Noise RatioThe eye signal-to-noise ratio (SNR) is a figure of m

Introducing the PSO-100 Optical Sampling Oscilloscope Series4 PSO-100Typical ApplicationsTypical ApplicationsThe Optical Sampling Oscilloscope display

Measurement Definitions112 PSO-100Timing JitterTiming JitterThe timing jitter of an NRZ eye diagram is a measurement of the variance in time locations

Measurement DefinitionsOptical Sampling Oscilloscope 113Rise Time and Fall TimeRise Time and Fall TimeThe rise time is calculated from horizontal hist

Measurement Definitions114 PSO-100Eye HeightEye HeightThe eye height (EH) is a measurement of the vertical opening of an eye diagram and it is defined

Measurement DefinitionsOptical Sampling Oscilloscope 115Eye WidthEye WidthThe eye width is a measurement of the horizontal opening of the eye. The eye

Measurement Definitions116 PSO-100Duty Cycle DistortionDuty Cycle DistortionThe duty cycle distortion (DCD) is a measurement of the time separation of

Measurement DefinitionsOptical Sampling Oscilloscope 117Pulse WidthPulse WidthThe pulse width measurement is only possible for RZ pulses. It can be us

Measurement Definitions118 PSO-100Duty CycleDuty CycleThe duty cycle is only defined for RZ pulses or data as the ratio between the pulse width and th

Optical Sampling Oscilloscope 119D Asynchronous Sampling PrincipleSince the instrument has no hardware trigger, there is no way for the system to cont

Asynchronous Sampling Principle120 PSO-100Frequency HolesThe offset frequency Δf is more conveniently expressed in terms of a corresponding time step,

Asynchronous Sampling PrincipleOptical Sampling Oscilloscope 121Frequency HolesThe samples are evenly distributed, but sometimes the samples could be

Introducing the PSO-100 Optical Sampling Oscilloscope SeriesOptical Sampling Oscilloscope 5Typical ApplicationsIf the optional external clock input is

Asynchronous Sampling Principle122 PSO-100Frequency HolesDirectly after startup of the instrument the sampling frequency drifts relatively fast until

Asynchronous Sampling PrincipleOptical Sampling Oscilloscope 123Pattern EffectsPattern EffectsThe software synchronization principle also results in a

IndexOptical Sampling Oscilloscope 125IndexAAC requirements ... 10adjusting zero level ...

Index126 PSO-100Eeliminating offsets/dark current ... 32equipment returns ... 100EUIconnector adapter

IndexOptical Sampling Oscilloscope 127maskapplying... 63margin...

Index128 PSO-100Rratio, channels... 35referencetrace ...

IndexOptical Sampling Oscilloscope 129Vvalueaveraging... 50of sample batch...

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Introducing the PSO-100 Optical Sampling Oscilloscope Series6 PSO-100ConventionsConventionsBefore using the product described in this manual, you shou

www.EXFO.com · [email protected]/N: 1056317CORPORATE HEADQUARTERS 400 Godin Avenue Quebec (Quebec) G1M 2K2 CANADATel.: 1 418 683-0211 · Fax: 1 418 683-

Optical Sampling Oscilloscope 72 Safety InformationLaser Safety InformationYour instrument is a Class 1 laser product in compliance with standards IEC

Safety Information8 PSO-100Electrical Safety InformationElectrical Safety InformationThis unit uses an international safety standard three-wire power

Safety InformationOptical Sampling Oscilloscope 9Electrical Safety InformationThe color coding used in the electric cable depends on the cable. New pl

Safety Information10 PSO-100Electrical Safety InformationThe following label is located on the back panel of the unit:Equipment RatingsTemperature³ Op

Optical Sampling Oscilloscope 113 Getting Started with Your Optical Sampling OscilloscopeHost Computer Minimum RequirementsYour host computer must mee

ii PSO-100Copyright © 2007–2010 EXFO Inc. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmit

Getting Started with Your Optical Sampling Oscilloscope12 PSO-100Installing the Matlab Runtime, USB Drivers and Optical Sampling Oscilloscope Software

Getting Started with Your Optical Sampling OscilloscopeOptical Sampling Oscilloscope 13Installing the Matlab Runtime, USB Drivers and Optical Sampling

Getting Started with Your Optical Sampling Oscilloscope14 PSO-100Installing the Matlab Runtime, USB Drivers and Optical Sampling Oscilloscope Software

Getting Started with Your Optical Sampling OscilloscopeOptical Sampling Oscilloscope 15Installing the Matlab Runtime, USB Drivers and Optical Sampling

Getting Started with Your Optical Sampling Oscilloscope16 PSO-100Installing the Matlab Runtime, USB Drivers and Optical Sampling Oscilloscope Software

Getting Started with Your Optical Sampling OscilloscopeOptical Sampling Oscilloscope 17Installing the Matlab Runtime, USB Drivers and Optical Sampling

Getting Started with Your Optical Sampling Oscilloscope18 PSO-100Installing the Matlab Runtime, USB Drivers and Optical Sampling Oscilloscope Software

Getting Started with Your Optical Sampling OscilloscopeOptical Sampling Oscilloscope 19Installing the Matlab Runtime, USB Drivers and Optical Sampling

Getting Started with Your Optical Sampling Oscilloscope20 PSO-100Installing and Starting the Optical Sampling OscilloscopeInstalling and Starting the

Getting Started with Your Optical Sampling OscilloscopeOptical Sampling Oscilloscope 21Installing and Starting the Optical Sampling Oscilloscope4. Sta

ContentsOptical Sampling Oscilloscope iiiContentsCertification Information ...

Getting Started with Your Optical Sampling Oscilloscope22 PSO-100Installing and Starting the Optical Sampling OscilloscopeThe first time you start the

Getting Started with Your Optical Sampling OscilloscopeOptical Sampling Oscilloscope 23Installing and Starting the Optical Sampling Oscilloscope5. Fro

Getting Started with Your Optical Sampling Oscilloscope24 PSO-100Turning off the Optical Sampling OscilloscopeTurning off the Optical Sampling Oscillo

Getting Started with Your Optical Sampling OscilloscopeOptical Sampling Oscilloscope 25Cleaning and Connecting Optical FibersCleaning and Connecting O

Getting Started with Your Optical Sampling Oscilloscope26 PSO-100Cleaning and Connecting Optical Fibers3. Carefully align the connector and port to pr

Getting Started with Your Optical Sampling OscilloscopeOptical Sampling Oscilloscope 27Installing the EXFO Universal Interface (EUI)Installing the EXF

Optical Sampling Oscilloscope 294 Setting up and Using the Optical Sampling OscilloscopeOnce the unit and application are started, you can begin using

Setting up and Using the Optical Sampling Oscilloscope30 PSO-100³ From the menu bar you can select different functions, for example to save samples, t

Setting up and Using the Optical Sampling OscilloscopeOptical Sampling Oscilloscope 31For the examples in this documentation, we have tested an optica

Contentsiv PSO-1004 Setting up and Using the Optical Sampling Oscilloscope ...29Adjusting the Zero Level (Nulling Offsets) ...

Setting up and Using the Optical Sampling Oscilloscope32 PSO-100Adjusting the Zero Level (Nulling Offsets)Adjusting the Zero Level (Nulling Offsets)Te

Setting up and Using the Optical Sampling OscilloscopeOptical Sampling Oscilloscope 33Managing SoftSync InputManaging SoftSync InputThe SoftSync input

Setting up and Using the Optical Sampling Oscilloscope34 PSO-100Managing SoftSync Input³ If you select an incorrect interval, you will still see an ey

Setting up and Using the Optical Sampling OscilloscopeOptical Sampling Oscilloscope 35Scaling Channel 1 to Channel 2 (PSO-102 Models)Scaling Channel 1

Setting up and Using the Optical Sampling Oscilloscope36 PSO-100Finding a Pattern in a SamplingFinding a Pattern in a SamplingIf for some reason the p

Setting up and Using the Optical Sampling OscilloscopeOptical Sampling Oscilloscope 37Using the Zoom FunctionsUsing the Zoom FunctionsThe zoom functio

Setting up and Using the Optical Sampling Oscilloscope38 PSO-100Synchronizing the Input to a Specific ChannelSynchronizing the Input to a Specific Cha

Setting up and Using the Optical Sampling OscilloscopeOptical Sampling Oscilloscope 39Selecting Sync Format³ The DPSK (differential phase-shift keying

Setting up and Using the Optical Sampling Oscilloscope40 PSO-100Selecting the Channels (PSO-102 Only)Selecting the Channels (PSO-102 Only)You can view

Setting up and Using the Optical Sampling OscilloscopeOptical Sampling Oscilloscope 41Selecting Trace and Background ColorsSelecting Trace and Backgro

ContentsOptical Sampling Oscilloscope v7 Warranty ...

Setting up and Using the Optical Sampling Oscilloscope42 PSO-100Using the Dual Window ViewUsing the Dual Window ViewThe dual window view allows you to

Setting up and Using the Optical Sampling OscilloscopeOptical Sampling Oscilloscope 43Using the Dual Window ViewTo select the dual view and its option

Setting up and Using the Optical Sampling Oscilloscope44 PSO-100Using the Clock InputUsing the Clock InputIn some situations, you cannot fully rely on

Setting up and Using the Optical Sampling OscilloscopeOptical Sampling Oscilloscope 45Using the Clock InputTo activate the external clock:1. From the

Setting up and Using the Optical Sampling Oscilloscope46 PSO-100Using the Clock InputTo use the external clock input:1. Connect an external electrical

Setting up and Using the Optical Sampling OscilloscopeOptical Sampling Oscilloscope 47Using the Clock InputIn this example, we have chosen to view two

Setting up and Using the Optical Sampling Oscilloscope48 PSO-100Selecting the Number of Samples per Layer of DisplaySelecting the Number of Samples pe

Setting up and Using the Optical Sampling OscilloscopeOptical Sampling Oscilloscope 49Changing the Persistence TimeChanging the Persistence TimeIn the

Setting up and Using the Optical Sampling Oscilloscope50 PSO-100Changing the Averaging ValueChanging the Averaging ValueThe averaging value is where n

Setting up and Using the Optical Sampling OscilloscopeOptical Sampling Oscilloscope 51Changing the Averaging ValueTo change the averaging value:1. Fro

Certification Informationvi PSO-100Certification InformationFCC InformationElectronic test equipment is exempt from Part 15 compliance (FCC) in the Un

Setting up and Using the Optical Sampling Oscilloscope52 PSO-100Displaying HistogramsDisplaying HistogramsYou can view either a horizontal or a vertic

Setting up and Using the Optical Sampling OscilloscopeOptical Sampling Oscilloscope 53Displaying HistogramsIn the figure below, we have instead select

Setting up and Using the Optical Sampling Oscilloscope54 PSO-100Displaying HistogramsTo display a histogram of the data:1. From the main window, selec

Setting up and Using the Optical Sampling OscilloscopeOptical Sampling Oscilloscope 55Managing FiltersManaging FiltersSoftware defined filters can be

Setting up and Using the Optical Sampling Oscilloscope56 PSO-100Managing FiltersTo set the order for the filter:1. From the main window, select the Di

Setting up and Using the Optical Sampling OscilloscopeOptical Sampling Oscilloscope 57Managing FiltersThe figure below shows an example of a filtered

Setting up and Using the Optical Sampling Oscilloscope58 PSO-100Using ColorgradeUsing ColorgradeColorgrading the sampling can let you see which parts

Setting up and Using the Optical Sampling OscilloscopeOptical Sampling Oscilloscope 59Using MarkersUsing MarkersMarkers are quick and easy ways to tak

Setting up and Using the Optical Sampling Oscilloscope60 PSO-100Using MarkersTo move markers:When the appropriate marker is selected, click on the scr

Setting up and Using the Optical Sampling OscilloscopeOptical Sampling Oscilloscope 61Using the Eyeline ModeUsing the Eyeline ModeThe eyeline mode is

Certification InformationOptical Sampling Oscilloscope vii Application of Council Directives: 2006/95/EC - The Low Voltage Directive

Setting up and Using the Optical Sampling Oscilloscope62 PSO-100Using the Eyeline Mode2. In the Display menu, select Eyeline mode.The figure below sho

Setting up and Using the Optical Sampling OscilloscopeOptical Sampling Oscilloscope 63Using MasksUsing MasksMask testing is a procedure commonly used

Setting up and Using the Optical Sampling Oscilloscope64 PSO-100Using MasksThe figure below shows the result from a mask test on 40 Gb/s NRZ data. The

Setting up and Using the Optical Sampling OscilloscopeOptical Sampling Oscilloscope 65Using Masks3. Enter values for the width, the height and the mar

Setting up and Using the Optical Sampling Oscilloscope66 PSO-100Displaying the FFT Spectrum of a Sampled SignalDisplaying the FFT Spectrum of a Sample

Setting up and Using the Optical Sampling OscilloscopeOptical Sampling Oscilloscope 67Displaying the FFT Spectrum of a Sampled Signal3. Start the samp

Setting up and Using the Optical Sampling Oscilloscope68 PSO-100Displaying a Reference Trace for your MeasurementsDisplaying a Reference Trace for you

Setting up and Using the Optical Sampling OscilloscopeOptical Sampling Oscilloscope 69Managing Measurement ParametersManaging Measurement ParametersIn

Setting up and Using the Optical Sampling Oscilloscope70 PSO-100Managing Measurement ParametersTo select a measurement type:From the main window, sele

Setting up and Using the Optical Sampling OscilloscopeOptical Sampling Oscilloscope 71Managing Measurement ParametersTo set the thresholds for rise an

Setting up and Using the Optical Sampling Oscilloscope72 PSO-100Managing Measurement ParametersTo set the histogram window width for NRZ and RZ format

Setting up and Using the Optical Sampling OscilloscopeOptical Sampling Oscilloscope 73Managing Measurement ParametersEye Mode Measurement ExampleIn th

Setting up and Using the Optical Sampling Oscilloscope74 PSO-100Managing Measurement ParametersPattern Measurement ExampleInstead of an eye diagram yo

Setting up and Using the Optical Sampling OscilloscopeOptical Sampling Oscilloscope 75Managing SynchronizationManaging SynchronizationThere are two sy

Setting up and Using the Optical Sampling Oscilloscope76 PSO-100Setting the Data Phase Tracking AlgorithmSetting the Data Phase Tracking AlgorithmData

Setting up and Using the Optical Sampling OscilloscopeOptical Sampling Oscilloscope 77Filter-Based Phase TrackingFilter-Based Phase TrackingIf the pie

Setting up and Using the Optical Sampling Oscilloscope78 PSO-100Filter-Based Phase TrackingTo set the filter bandwidth:1. From the main window, select

Setting up and Using the Optical Sampling OscilloscopeOptical Sampling Oscilloscope 79Saving Sample FilesSaving Sample FilesYou can save the samples o

Setting up and Using the Optical Sampling Oscilloscope80 PSO-100Saving Sample Files4. Click Save / print.5. Select to save the file to the desired f

Optical Sampling Oscilloscope 815 MaintenanceTo help ensure long, trouble-free operation:³ Always inspect fiber-optic connectors before using them and

Optical Sampling Oscilloscope 11 Introducing the PSO-100 Optical Sampling Oscilloscope SeriesBased on a unique optical sampling approach, the PSO-100

Maintenance82 PSO-100Cleaning EUI ConnectorsCleaning EUI ConnectorsRegular cleaning of EUI connectors will help maintain optimum performance. There is

MaintenanceOptical Sampling Oscilloscope 83Cleaning EUI Connectors5. Repeat steps 3 to 4 with a dry cleaning tip.Note: Make sure you don’t touch the s

Maintenance84 PSO-100Replacing FusesReplacing FusesThe unit contains two fuses (T2.5A L, 5 mm x 20 mm (0.197 in x 0.787 in), slow-blow, low-breaking c

MaintenanceOptical Sampling Oscilloscope 85Recycling and Disposal (Applies to European Union Only)Recycling and Disposal (Applies to European Union On

Optical Sampling Oscilloscope 876 TroubleshootingSolving Common ProblemsProblem Cause Possible SolutionNothing happens when you start sampling, but yo

Troubleshooting88 PSO-100Solving Common ProblemsThe application was just started, but you can see a message that indicates "USB connection failed

TroubleshootingOptical Sampling Oscilloscope 89Solving Common ProblemsThe application was just started. In the DOS window "USB connection OK"

Troubleshooting90 PSO-100Solving Common ProblemsNo signal is shown in the application, only samples at the zero level.³ Power is too low.³ Wavelength

TroubleshootingOptical Sampling Oscilloscope 91Solving Common ProblemsThe update rate is very slow, even in Freerun mode and with 16 k samples.³ You a