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YOKOGAWA AQ6370D User Manual

YOKOGAWA AQ6370D
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Users
Manual
AQ6370D
Optical Spectrum Analyzer
IM AQ6370D-01EN
5th Edition

Table of Contents

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YOKOGAWA AQ6370D Specifications

General IconGeneral
Wavelength Range600 to 1700 nm
Wavelength Resolution0.02 nm
Level Accuracy±0.5 dB
Polarization Dependency±0.05 dB
Sensitivity-90 dBm
Sweep Time0.2 sec (100 nm span)
DisplayLCD
InterfaceUSB, GPIB
Wavelength Accuracy±0.02 nm
Dynamic Range78 dB (peak)

Summary

Product Registration

List of Manuals

Notes

Trademarks

Revisions

Conventions Used in This Manual

Safety Markings

Explains safety markings used in the manual for user safety and instrument protection.

Notations Used on Pages Describing Operating Procedures

Describes notations used to distinguish procedures from their explanations in operating chapters.

Notations Used in the Procedures

Explains panel keys and soft keys, and units like k and K.

Flow of Operation

Preparing for Measurement

Details on installing the instrument, turning it on/off, and wavelength calibration.

Setting Conditions and Measuring

Covers auto sweep, other settings, measurement start, and external trigger.

Waveform Display

Explains how to display and adjust waveforms, including markers and searching.

Waveform Analysis

Covers waveform analysis and Go/No-Go judgment procedures.

Saving Display Data and Printing Out

Details on using storage media and saving data.

Chapter 1 Part Names and Functions

1.1 Front Panel

Describes the components and functions of the instrument's front panel.

1.2 Rear Panel

Details the various connectors and ports on the rear panel of the instrument.

1.3 Panel Keys and Knobs

Explains the functions of the various keys and knobs on the instrument's panel.

1.4 LCD Screen

Describes the layout and function of the instrument's LCD screen elements.

Chapter 2 Functions

2.1 System Structure

Illustrates the instrument's system structure and external connections.

2.2 Measurement

Details various measurement functions like alignment, calibration, auto measurement, and sweeps.

2.3 Waveform Display

Explains how to zoom, overview, and manage waveform traces and their modes.

2.4 Analysis

Covers various analysis types like spectrum width, notch width, device analysis, and WDM analysis.

2.5 Other

Describes other functions like USB mouse, soft key registration, data initialization, help, and locking keys.

Chapter 3 Preparing for Measurement

3.1 Installing the Instrument

Provides instructions on installation conditions, handling precautions, and environmental requirements.

3.2 Attaching the Connector Adapter

Details the procedure for attaching and removing optical connector adapters.

3.3 Connecting the Device

Explains how to connect USB mice, keyboards, and storage devices.

3.4 Turning the Power ON/OFF

Covers power connection precautions, turning the instrument on/off, and shutdown procedures.

3.5 Connecting the DUT

Details the procedure for connecting the DUT (Device Under Test) via optical fibers.

3.6 Alignment Adjustment

Explains how to perform alignment adjustment using built-in or external light sources.

3.7 Wavelength Calibration

Details the procedure for wavelength calibration using internal or external light sources.

3.8 Resolution Calibration

Explains how to calibrate the instrument's resolution bandwidth.

3.9 Important Points During Measurement

Covers important considerations during measurement, like fiber types and NA.

Chapter 4 Common Operations

4.1 Description of Soft Keys

Explains the forms and behavior of soft keys used in the instrument's menus.

4.2 Using the Mouse and External Keyboard

Details how to use a connected mouse and external keyboard for instrument operation.

4.3 Entering Numerical Values and Strings

Explains how to enter numerical values and character strings using the DATA ENTRY section.

4.4 Screen Display

Covers setting the number of digits, transparent display, and changing display colors.

4.5 Setting the Date and Time

Explains how to display, enter, and change the date and time settings.

Chapter 5 Measurement

5.1 Auto Measurement

Describes how to automatically set optimal measuring conditions and perform measurement.

5.2 Horizontal/Vertical Axis Settings

Details how to set horizontal axis units and measure wavelength to air or vacuum.

5.3 Sub Scale

Explains how to display and set sub scales for differential or normalized waveforms.

5.4 Setting the Reference Level

Covers setting the reference level using soft keys or one-action keys.

5.5 Center Wavelength (Center Frequency) Setting

Explains how to set the center wavelength or center frequency using soft keys or one-action keys.

5.6 Sweep Width Settings

Details methods for setting sweep width using SPAN, START/STOP keys, or one-action keys.

5.7 Wavelength (Frequency) Resolution Settings

Explains how to set and correct wavelength or frequency resolution.

5.8 Sampling Point/Interval Settings

Covers setting the number of samples or sampling interval directly or automatically.

5.9 Sensitivity Settings

Explains how to set measurement sensitivity and CHOP mode settings.

5.10 Sweep Speed Settings

Details how to adjust the sweep speed for faster measurements.

5.11 Averaging Times Setting

Explains how to set averaging times to improve S/N ratio.

5.12 Trace Settings

Covers selecting traces, setting write/fix modes, and displaying traces.

5.13 Measurement Start (Sweep)

Details how to start and stop sweeps, including segment measurement.

5.14 Specifying a Sweep Range

Explains how to specify a sweep range between line markers.

5.15 Pulse Light Measurement

Covers methods for measuring pulse light, including peak hold and gate sampling.

5.16 External Trigger Measurement

Explains how to perform measurements synchronized with an external trigger signal.

5.17 Trigger Output

Describes how to output trigger signals from the instrument.

5.18 Smoothing

Explains how to use the smoothing function to reduce noise in waveforms.

5.19 Analog Out

Details how to connect the instrument to an oscilloscope for analog voltage output.

Chapter 6 Waveform Display

6.1 Zooming In/Out on Waveforms

Explains methods for zooming in/out on waveforms by specifying ranges or using the mouse.

6.2 Wavelength Updating/Fixing

Covers updating waveform data (write mode) and fixing it (fix mode).

6.3 MAX/MIN HOLD Display

Explains how to hold the maximum or minimum waveform values detected during sweeps.

6.4 Sweep Average

Details how to set averaging times for improving S/N ratio.

6.5 Displaying Calculated Waveforms

Explains how to perform trace-to-trace calculations and display results.

6.6 Normalized Display

Describes the normalized display function for comparing waveforms.

6.7 Curve Fitting

Explains how to perform curve fitting and peak curve fitting on trace waveforms.

6.8 Power Density Trace

Details how to compute and display power density in a specified bandwidth.

6.9 Marker Display

Covers displaying and manipulating moving, fixed, line, and advanced markers.

6.10 Displaying a Split Screen

Explains how to split the screen for displaying multiple traces or ranges.

6.11 Noise Mask

Details how to apply a noise mask to waveform parts or set display lower limit values.

6.12 Copying and Clearing Traces

Explains procedures for copying and clearing trace data.

6.13 Single Search

Covers single peak/bottom searches and finding next/previous points.

6.14 Multi Search

Explains how to perform multi-peak/bottom searches and set detection thresholds.

Chapter 7 Analysis

7.1 Spectrum Width Measurement

Describes how to measure spectrum width using various algorithms and parameters.

7.2 Notch Width Measurement

Explains how to measure notch width (pass band/notch width) of filters.

7.3 SMSR Measurement

Details how to measure the Side Mode Suppression Ratio (SMSR) for DFB-LDs.

7.4 POWER Measurement

Explains how to measure optical power by integrating waveform level values.

7.5 DFB-LD, FP-LD, and LED Measurement

Covers analysis of parameters for different light sources like DFB-LD, FP-LD, and LED.

7.6 PMD Measurement

Explains how to measure Polarization Mode Dispersion (PMD) of optical fibers.

7.7 WDM Transmission Signal Analysis

Details how to analyze WDM transmission signals, measuring channel wavelength, level, and SNR.

7.8 Optical Amp Gain and NF Measurement

Explains how to measure optical amplifier gain and noise figure (NF).

7.9 Optical Filter Characteristics Measurement

Covers measuring optical filter characteristics, including peak and bottom analysis.

7.10 Editing the Grid Table

Explains how to create and edit standard and custom grid tables for analysis.

7.11 Measurement of Level Fluctuations in Single-Wavelength Light (0 nm Sweeping)

Describes measuring level fluctuations over time at a specific wavelength.

7.12 Go/No-Go Judgment (Template)

Explains how to create and use template data for Go/No-Go judgments.

7.13 Specifying an Analysis Range

Details how to specify analysis ranges between line markers or within zoom areas.

7.14 Correcting Displayed Values

Covers setting wavelength and level shift amounts for correcting displayed values.

7.15 Analysis Data Logging

Explains how to log WDM, PEAK, DFB-LD analysis data, and save it to files.

Chapter 8 Saving/Loading Data

8.1 USB Storage Media

Details supported USB storage media and procedures for safe removal.

8.2 Temporarily Saving and Redisplaying Traces to and from Internal Memory

Covers saving waveforms to internal memory and redisplaying saved data.

8.3 Saving/Loading Displayed Data

Explains how to save displayed waveforms to USB or internal memory and load them.

8.4 Saving/Loading Displayed Data(All Trace)

Details how to save all measured trace data to USB storage media.

8.5 Saving/Loading Setting Data

Explains how to save and load instrument settings and soft key statuses.

8.6 Saving/Loading Analysis Results Data

Covers saving analysis results, including time and waveform data, in ASCII or binary format.

8.7 Saving/Loading Program Data

Explains how to save and load programs created with the program function.

8.8 Saving Screen Image Data

Details how to save the instrument's screen as an image file (BMP or TIFF).

8.9 Saving/Loading Template Data

Covers saving and loading template files in CSV format for Go/No-Go judgment.

8.10 Saving and Loading Logging Data

Explains how to save and load logging data and corresponding trace waveforms.

8.11 Creating Files

Describes how to create directories, copy files, change names, and sort files.

Chapter 9 Other Operations

9.1 Registering Soft keys

Explains how to register frequently used soft keys for easier access.

9.2 Data Initialization

Details the procedures for restoring all settings to factory defaults.

9.3 Help

Describes how to access help information for menus and soft keys.

9.4 Registering and Loading Character Strings

Covers registering and loading preset character strings for menu inputs.

9.5 Locking Keys

Explains how to lock and unlock instrument keys to prevent unauthorized operation.

9.6 Other Settings

Covers settings like UNCAL display, buzzer, language, auto offset, and network settings.

9.7 Displaying System Information

Details how to display system information, including firmware version and hardware details.

Chapter 10 Maintenance

10.1 Updating the Firmware

Explains how to update the instrument's firmware via USB or network.

10.2 Mechanical Inspection

Provides guidelines for performing mechanical inspections of the instrument's exterior and parts.

10.3 Operational Inspection

Describes checking the proper operation of each switch after turning the power ON.

10.4 Inspection of Wavelength Accuracy

Details how to check and calibrate the instrument's wavelength accuracy.

10.5 Inspection of Level Accuracy

Explains how to check and verify the instrument's level accuracy using a light source.

10.6 Replacing Fuses

Advises contacting the dealer for fuse replacement due to internal damage risk.

10.7 Daily Maintenance

Covers cleaning the instrument's exterior and optical output section.

10.8 Care during Storage

Provides guidelines for proper storage conditions to maintain instrument integrity.

10.9 Recommended Replacement Parts

Lists recommended replacement parts and their replacement periods.

10.10 Warning Display Function

Lists warning messages and their causes for troubleshooting instrument issues.

Chapter 11 Specifications

11.1 Specifications

Lists detailed technical specifications for the instrument's performance and features.

11.2 External Dimensions

Provides the physical dimensions and weight of the instrument.

Appendix 1 GRID Table for WDM Wevelength

List of Analytical Functions with GRID Tables

Lists analytical functions that utilize GRID tables for analysis.

Standard GRID Table

Describes the standard GRID table with predefined wavelength/frequency ranges.

Custom GRID Table

Explains how users can edit and create custom GRID tables for analysis.

Appendix 2 Data Calculation Algorithms for Spectrum Widths

THRESH Method

Details the THRESH method for calculating spectrum widths and center wavelengths.

ENVELOPE Method

Explains the ENVELOPE method for obtaining spectrum widths.

RMS Method

Details the RMS method for obtaining spectrum width and center wavelength.

PEAK RMS Method

Explains the PEAK RMS method for obtaining spectrum width and center wavelength.

NOTCH Width Measurement

Details the algorithms for NOTCH width measurement based on bottom or peak.

Appendix 3 Details of Each Analytical Functions

SMSR Analysis Function

Describes the SMSR analysis function for DFB-LD light sources.

SMSR1

Explains the analysis algorithm for SMSR mode 1.

SMSR2

Explains the analysis algorithm for SMSR mode 2.

SMSR3

Explains the analysis algorithm for SMSR mode 3.

SMSR4

Explains the analysis algorithm for SMSR mode 4.

POWER Analysis Function

Details the POWER analysis function for calculating total power.

PMD Analysis Function

Explains the PMD analysis function for measuring Polarization Mode Dispersion.

DFB-LD Analysis Function

Covers parameters analyzed for DFB-LD light sources.

FP-LD Analysis Function

Details parameters analyzed for FP-LD light sources.

LED Analysis Function

Covers parameters analyzed for LED light sources.

Appendix 4 Detailed Explanations of WDM Analysis Function

Items for analysis

Lists items analyzed in WDM waveforms, such as wavelength, level, and SNR.

List of Parameters

Details parameters related to channel detection and SNR analysis for WDM.

Related to Channel Detection

Explains parameters like THRESH LEVEL, MODE DIFF, and DISPLAY MASK for WDM channel detection.

Related to SNR Analysis

Details parameters for SNR analysis, including NOISE ALGO, NOISE AREA, and FITTING ALGO.

Related to display

Explains display types like ABSOLUTE, RELATIVE, DRIFT(MEAS), and DRIFT(GRID).

Other settings

Covers SIGNAL POWER and INTEGRAL RANGE settings for WDM analysis.

Algorithm for analysis

Describes the WDM analysis algorithm, including channel detection and noise level calculation.

Automatic Parameter Setting Function

Explains automatic setting functions for noise area and mask area.

Appendix 5 Details of Optical Amplifier Analysis Function

Items to be analyzed

Lists items analyzed for optical amplifiers, including gain and noise figure.

List of parameters

Details parameters related to channel detection for optical amplifier analysis.

Related to ASE Level Measurement

Explains parameters for ASE level measurement, including OFFSET, ASE ALGO, and FITTING ALGO.

Appendix 6 Details of Optical Filter Analysis Function

FILTER PEAK Analysis Function

Details the FILTER PEAK analysis function for optical filters.

Items for analysis

Lists items analyzed for optical filters, such as peak level, width, and crosstalk.

List of Parameters

Details parameters for PEAK LEVEL, CENTER WL, SPECTRUM WIDTH, RIPPLE WIDTH, and CROSS TALK.

Algorithms for analysis

Describes algorithms for analysis like NOMINAL WAVELENGTH, XdB_STOP-BAND, XdB_PASS-BAND, RIPPLE, and CROSS TALK.

FILTER BOTTOM Analysis Function

Details the FILTER BOTTOM analysis function for optical filters.

Appendix 7 Soft Key Tree Diagram

SWEEP

Shows the soft key tree for SWEEP related functions.

CENTER

Shows the soft key tree for CENTER related functions.

SPAN

Shows the soft key tree for SPAN related functions.

LEVEL

Shows the soft key tree for LEVEL related functions.

SETUP

Displays the soft key tree for SETUP functions, covering various settings.

ZOOM

Shows the soft key tree for ZOOM functions.

DISPLAY

Displays the soft key tree for DISPLAY functions.

TRACE (MORE 1/2)

Shows the soft key tree for TRACE management options.

TRACE (MORE 2/2)

Shows additional TRACE management options.

MARKER

Displays the soft key tree for MARKER functions.

PEAK SEARCH

Shows the soft key tree for PEAK SEARCH functions.

ANALYSIS

Displays the soft key tree for ANALYSIS functions.

MEMORY

Shows the soft key tree for MEMORY operations.

FILE

Displays the soft key tree for FILE operations.

SETTING

Shows the soft key tree for SETTING data management.

DATA

Displays the soft key tree for DATA management.

PROGRAM

Shows the soft key tree for PROGRAM management.

GRAPHIC

Displays the soft key tree for GRAPHIC (screen image) saving.

TEMPLATE

Shows the soft key tree for TEMPLATE management.

LOGGING

Displays the soft key tree for LOGGING data management.

SYSTEM(MORE 1/4)

Shows the soft key tree for SYSTEM configuration options.

SYSTEM(MORE 2/4)

Displays additional SYSTEM configuration options.

SYSTEM(MORE 3/4, MORE 4/4)

Shows further SYSTEM configuration options.

Appendix 8 END USER LICENSE AGREEMENT

Restricted Uses

Outlines restrictions on the use of the SOFTWARE for hazardous environments.

Security Updates

Explains security updates for Microsoft DRM and their impact on Secure Content.

NetMeeting/Remote Assistance/Remote Desktop Features

Describes the use of NetMeeting, Remote Assistance, and Remote Desktop technologies.

Consent to Use of Data

Details Microsoft's policy on collecting and using technical information.

Internet Gaming/Update Features

Explains the use of Internet gaming or update features and data authorization.

Internet-Based Services Components

Covers software components enabling Internet-based services and automatic updates.

Links to Third Party Sites

Mentions the ability to link to third-party sites and their non-endorsement.

Additional Software/Services

Explains provision of Supplemental Components and terms of use.

Installation and Use

Specifies limitations on processor usage and client connections for the SOFTWARE.

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