HP (Hewlett-Packard) 86140A User Manual

User’s Guide

HP 86140A Series Optical Spectrum Analyzer

HP Part No. 8 6140 -90035 Printed in USA February 2000

Hew lett -Packard Compan y Lightwave Division 1400 Fountaingrove Park way Santa Rosa, CA 9 5403-1799, USA (707) 577-1 400

Notice.

The information contained in this document is subject to change without notice. Companies, names, and data used in examples herein are fictitious unless otherwise noted. Hew lett -Packard makes no warranty of any kind with regard to this material, including but not limited to, the implied warranties of merchantability and fitness for a particular purpose. HewlettPackard shall not be liable f or errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.

Restricted Rights Legend.

Use, duplication, or disclosure by the U.S. Government is subject to restrictions a s set forth in subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software clause at DFARS 252.2 27-7013 for DOD agencies, and subparagraphs (c) (1) and (c) (2 ) of the Commercial Computer Software Restricted Rights claus e a t FAR 52 .22 7-19 for other agencies.

Warrant y.

This Hewlett-Packard instrument product is warranted against defects in material and workmanship for a perio d of one year from date of shipment. During the warranty period, Hewlett-Packard Company will, at its option, either repair or replace products which prove to be defective. For warranty service o r repair, this product must b e returned to a service facility designated by Hewlett-Packard. Buyer shall prepay shipping charges to Hewlett-Packard and Hewlett-Packard shall pay shi ppi ng charg es to return the product to Buyer. However, Buyer shall pay all shipping charges, duties, and taxes for products returned to HewlettPackard from another country.

Hew lett -Packard wa rran ts that its software and firmware designated by HewlettPackard for use with an instrument will execute its programming instructions when properly installed o n that instrument. HewlettPackard does not warrant that the operation of the instrument, or sof tware, or firmware will be uninterrupted or errorfree.

Limitation of Warranty.

The foregoing warranty shall not apply to defects resulti ng from improper or inadequate maintenance by Buyer, Buyersupplied software or interfacing, unauthorized modification or misuse, operation outside of the environmental specifications for the product, or improper site preparation or maintenance.

No other warranty is expressed or implied. Hewlett-Packard specifically

disclaims the implied warranties of merchantability and fitness for a parti cular purpose.

Exclusive Remedi es.

The remedies provided herein are buyer's sole and exclusive remedies. Hewlett-Packard shall not be liable for any direct, indirect, special, incidental, or consequential damages, whether based on contract, tort, or any other legal theory.

Safety Symbols.

CAUTION

caution

The

sign de notes a hazard. It calls attention to a procedure whi ch, if not correctly performed or adhered to, could result in damage to or destruction of the product. Do not proceed beyond a caution sign until the indicated conditions are fully understood and met.

WARNING

warning

The

sign denotes a hazard. It calls attention to a procedure whi ch, if not correctly performed or adhered to, could result in injury or loss of life. Do not proceed beyond a warning sign until the indicated conditions are fully understood and met.

The instruction manual symbol. The product is marked with this warning symbol when it is necessary for the user to refer to the instructions in the manual.

The laser radiation symbol. This warning symbol is marked on products which have a laser output.

The AC symbol is used to indicate the required nature o f the line module input power.

|The ON symbols are used to mark the positions of the instrument power line switch.

❍The OFF symbols are used to mar k the positions of the instrument power line switch.

The CE mark is a registe r ed trademark of the European Community.

The CSA mark is a registe r ed trademark of the Canadian Standards Association.

The C-Tick mark is a registered trademark of the Australian Spectrum Management Agency.

This text denotes the

ISM1-A

instrument is an Industrial Scientific and Medical Group 1 Class A product.

General Safety Considerations

This product has been designed and tested in accordance with IEC Publication 1010, Safety Requirements for Electronic Measuring Apparatus, and has been supplied in a safe condition. The instruction documentation contains information and warnings which must be followed by the user to ensure safe operation and to maintain the product in a safe condition.

Install the instrument according to the enclosure protection provided. This instrument does not protect against the ingress of water. This instrument protects against finger access to hazardous parts within the enclosure.

WARN ING

CAUTION

If this product is not used as specified, the protection provided by the equipment could be impaired. This product must be used in a normal condition (in which all means for protection are intact) only.

No operator serviceable parts inside. Refer servicing to qualified service personnel. To prevent electrical shock do not remove covers.

This is a Safety Class 1 Product (provided with a protective earthing ground incorporated in the power cord). The mains plug shall only be inserted in a socket outlet provided with a protective earth contact. Any interruption of the protective conductor inside or outside of the instrument is likely to make the instrument dangerous. Intentional interruption is prohibited.

To prevent electrical shock, disconnect the instrument from mains before cleaning. Use a dry cloth or one slightly dampened with water to clean the external case parts. Do not attempt to clean internally.

Fiber-optic connectors are easily damaged when connected to dirty or damaged cables and accessories. The HP 86140 series’s front-panel INPUT connector is no exception. When you use improper cleaning and handling techniques, you risk expensive instrument repairs, damaged cables, and compromised measurements. Before you connect any fiber-optic cable to the HP 86140 series, ref er to “Cleaning Co nnecti ons for Accurate Measurements”

on page 6-10.

CAUTION

This product is designed for use in Installation Category II and Pollution Degree 2 per IEC 1010 and 664 respectively.

iii

General Safety Considerations

CAUTION

Do not use too much liquid in cleaning the optical spectrum analyzer. Water can enter the front-panel keyboard, damaging sensitive electronic components.

VENTILATION REQUIREMENTS: When installi ng the product in a cabinet, the convection into and out of the product must not be restricted. The ambient temperature (outside the cabinet) must be less than the maximum operating temperature of the product by 4° C for every 100 watts dissipated in the cabinet. If the total power dissipated in the cabinet is greater than 800 watts, then forced convection must be used.

Always use the three-prong AC power cord supplied with this instrument. Failure to ensure adequate earth grounding by not using this cord may cause instrument damage.

Do not

connect ac power until you have verified the line voltage is correct as described in “Line Power Requirements” on page 1-7. Damage to the equipment could result.

This instrument has autoranging line voltage input. Be sure the supply voltage is within the specified range.

1 Setting Up the OSA

2 A Quick Tour

HP 86140/2 Fro nt and Rear P anel s 2-4 HP 86143/5 Fro nt and Rear P anel s 2-6 Optical Spectrum Analyzer Display 2-8 The Menu Bar 2-10 The Softkey Panels 2-11 Tutorial: Getting Started 2-20 Changing the Printer Paper 2-23

3 Using the Optical Spectrum Analyzer

Front-Panel Keys 3-3 The Menus 3-7 The Amplitude Menus 3-8 The Bandwidth/Sweep Menus 3-14 The Markers Menus 3-21 The Save/Recall Menus 3-34 The System Menus 3-40 The Traces Menus 3-56 The Wavelength Menus 3-61 To Fill In a Setup Panel 3-65

4 Remote Operation

Getting Started 4-4 Monitoring the Instrument 4-11 Example Programs 4-16 Front Panel Functions to Remote Commands 4-31 Command Trees 4-37 Common Commands 4-42 CALCulate Subsystem Commands 4-45 CALibration Subsystem Commands 4-68 DISPlay Subsystem Commands 4-71 FORMat Subsystem Commands 4-76 HCOPy Subsystem Commands 4-77 INITiate Subsystem Comm ands 4-78 MEMory Subsystem Commands 4-79

Contents-1

Contents

MMEMory Subsystem Commands 4-80 SENSe Subsystem Commands 4-81 SOURce[n] Subsystem Commands 4-90 STATus Subsystem Commands 4-91 SYSTem Subsystem Commands 4-93 TRACe Subsystem Commands 4-95 TRIGger Subsystem Commands 4-99 UNIT Subsystem Commands 4-101 HP 71450 Series Commands to HP 86140 Series Equivalents 4-102

5Status Listings

Overview 5-2 Error Reporting Behavior 5-4 SCPI-Defined Errors 5-5 OSA Notices 5-16 OSA Warnings 5-17 Application-Specific Warnings 5-28 OSA Status Errors 5-34 OSA Errors 5-35 Firmware Errors 5-37

6 Reference

Options and Accessories 6-2 AC Line-Power Cords 6-4 Front-Panel Fiber-Optic Adapters 6-6 Printer Head Cleaning Procedure 6-7 Cleaning Connections for Accurate Measurements 6-10 Returning the Instrument for Service 6-21 Hewlett-Packard Sales and Service Offices 6-24

7 Specifications and Regulatory Information

Definition of Terms 7-3 Specifications 7-5 Regulatory Information 7-10

Contents -2

Setting Up the OSA

This chapter shows you how to set up your optical spectrum analyzer, connect power and accessories, and verify general operation. Although the pictures in this section show an HP 86140A or 86142A optical spectrum analyzer, setting up other HP 86140-series optical spectrum analyzers is very similar. Refer to

Chapter 6, “Reference” for the following additional information:

• Tips on avoiding niques.

• List of available options, accessories, and power cords.

• Instructions on returning your instrument to HP for service.

• HP Sales and Service Offices.

costly

repairs by proper optical connection cleaning tech-

1-2

Package contents for HP 86140 series optical spectrum analyzers

Setting Up the OSA

❒

Inspect the shipping container for damage.

❒

Inspect the instrument.

❒

Verify that you received the options and accessories you ordered.

Keep the shipping container and cushioning material until you have inspected the contents of the shipment for completeness and have checked the optical spectrum analyzer mechanically and electrically.

If anything is missing or defective, contact your nearest Hewlett-Packard Sales Office. If the shipment was damaged, contact the carrier, then contact the nearest Hewlett-Packard Sales Office. Keep the shipping materials for the carrier’s inspection. The HP Sales Office will arrange for repair or replacement at Hewlett-Packard’s option without waiting for claim settlement.

Note

The N1031A BenchLink software allows you to upload graphics and trace date to a personal computer for preparing a report, creating an analysis, or storing the waveforms for later use.

1-3

Setting Up the OSA

You can tilt your instrument upward for easier viewing. On the HP 86140A and 86142A instruments, lift up the front of the instrument, grasp one of the wire bails under the front corner, and pull it down and forward until it latches into place. Repeat f or the other wire bail. On HP 86143A and 86145A instruments, pivot the handle to tilt the instrument.

1-4

Setting Up the OSA

CAUTION

Although you can operate all instrument functions using only the front-panel keys and trackball, these accessories make your optical spectrum analyzer even easier to use! Connect any standard PC-compatible mouse (or other pointing device), keyboard, or external VGA-compatible display.

not

stack other objects on the keyboard; this will cause self-test failures on

power-on.

1-5

Setting Up the OSA

You can connect a PCL-language printer (for example, an HP LaserJet) to the instrument’s rear panel

Parallel

connector. Use a parallel Centronics printer

cable, such as an HP C2950A (2 m) or HP C2951A (3 m).

1-6

Setting Up the OSA

The optical spectrum analyzer automatically adjusts for line input voltages in the range of 100 to 240 VAC. There is no manual selection switch. The line cord provided is matched by HP to the country of origin of the order. Refer to

“AC Line-Power Cords” on page 6-4.

Line Power Requirements

Power 115 VAC: 110 VA MAX. / 60 WATTS MAX. / 1.1 A MAX.

230 VAC: 150 VA MAX. / 70 WATTS MAX. / 0.6 A MAX.

Voltage nominal: 115 VAC / 230 VAC

range 115 VAC: 90–132 V range 230 VAC: 198–254 V

Frequency nominals: 50 Hz / 60 Hz

range: 47–63 Hz

1-7

Setting Up the OSA

• Press the power switch at the lower left-hand corner of the front panel.

After a short initialization period, the display will look similar to the picture on this page. The instrument is ready to use.

1-8

Setting Up the OSA

CAUTION

Fiber-optic connectors are easily damaged when connected to dirty or damaged cables and accessories. The HP 86140 series’s front-panel

INPUT

connector is no exception. When you use improper cleaning and handling techniques, you risk expensive instrument repairs, damaged cables, and compromised measurements. Before you connect any fiber-optic cable to the HP 86140 series optical spectrum analyzer, refer to “Cleaning Connections for

Accurate Measurements” on page 6-10.

1-9

Setting Up the OSA

1-10

HP 86140/2 Fro nt and Rear P anel s 2-4 HP 86143/5 Fro nt and Rear P anel s 2-6 Optical Spectrum Analyzer Display 2-8 The Menu Bar 2-10 The Softkey Panels 2-11

The Amplitude menus 2-12 The Applications menus 2-13 The Bandwidth/Sweep menus 2-14 The Marker menus 2-15 The Save/Recall menus 2-16 The Systems menus 2-17 The Traces menus 2-18

The Wavelength menus 2-19 Tutorial: Getting Started 2-20 Changing the Printer Paper 2-23

A Quick Tour

HP 86140A-series optical spectrum analyzers display input light spectra from 600 nm to 1700 nm. To change instrument settings use the softkeys. To display different softkeys use these items:

• Softkey panel and softkeys

Print, Save/Recall, System,

•

• Menu bar

The menu bar or keys can be used to access the same functions. Use the trackball or an optional pointing device to make menu and softkey selections.

Application

and

keys

2-2

A Quick Tour

All displayed wavelength values show values as measured in a vacuum. This default setting can be changed t o show values as measured in air. See “To

change the default wavelength settings” on page 3-63 for more information.

OPTICAL INPUT

The

mode fiber

connector on standard instrument versions uses

. Connecting multi-mode fiber to these connectors results in large

single

reflections and insertion loss.

Auto Align

Auto Meas

Appl’s

To ensure maximum amplitude accuracy, connect an input signal to the instrument and then press

Auto Align

. This starts an automatic alignment procedure

that should be performed whenever the instrument has been:

• moved,

• subjected to large temperature changes, or

• warmed up at the start of each day.

Press the

Auto Meas

key to automatically locate the largest signal present at the

input connector.

Additional software applications can be purchased and installed in your optical spectrum analyzer. These applications automate and simplify your measurement tasks. Press this key to access your applications.

2-3

A Quick Tour

HP 86140/2 Front and Rear Panels

2-4

A Quick Tour

HP 86140/2 Front and Rear Panels

2-5

A Quick Tour

HP 86143/5 Front and Rear Panels

2-6

A Quick Tour

HP 86143/5 Front and Rear Panels

2-7

A Quick Tour

Optical Spectrum Analyzer Display

2-8

A Quick Tour

Optical Spectrum Analyzer Display

2-9

The File menu

A Quick Tour

The Menu Bar

The Menu bar includes the File, Measure, Application, and Op tions drop-down menus. Each menu selection includes a descriptive label.

(Action) Indicates the selection will perform an action such as

making a measurement or printing the display.

(Panel) Indicates the selection will open a softkey panel.

The Measure menu

The Applications menu

The Options menu

2-10

A Quick Tour

The Softkey Panels

The softkey panels can be accessed using either the front-panel keys or the menu bar. This section includes brief descriptions of the following menus. See

Chapter 3, “Using the Optical Spectrum Analyzer” for additional information

on each of the OSA functions.

The Amplitude menus 2-12

The Applications menus 2-13

The Bandwidth/Sweep menus 2-14

The Marker menus 2-15

The Save/Recall menus 2-16

The Systems menus 2-17

The Traces menus 2-18

The Wavelength menus 2-19

2-11

A Quick Tour

The Softkey Panels

The Amplitude menus

The Amplitude softkeys are accessed by using the front-panel the Measure menu Amplitude selection on the menu bar.

The Measure menu

Amplitude

key or

2-12

The Applications menus

A Quick Tour

The Softkey Panels

The Applications menu

The Applications (Appl’s) softkeys are accessed by using the front-panel

key or the Applications menu Launch an Installed Application.... selection on

the menu bar.

For a complete description of the applications, refer to the manual that came with your software.

Appl’s

2-13

A Quick Tour

The Softkey Panels

The Bandwidth/Sweep menus

The Bandwidth/Sweep softkeys are accessed by using the front-panel

width/Sweep

menu bar.

The Measure menu

key or the Measure menu Bandwidth/Sweep selection on the

Band-

2-14

+ 274 hidden pages