New Focus Vortex 6000 Series User manual

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USER’S GUIDE

6000 Vortex Series

Tunable Diode Laser

U.S. Patents #5,319,668 & #5,995,521 and

European Patent #0 693 231 B1

Use of controls or adjustments, or performance of procedures

other than those speciﬁed herein, may result in hazardous

radiation exposure.

5215 Hellyer Ave. • San Jose, CA 95138-1001 • USA

phone: (408) 284–6808 • fax: (408) 284–4824

e-mail: contact@newfocus.com • www.newfocus.com

Vortex6000.book Page 1 Tuesday, February 19, 2002 3:25 PM

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Warranty

New Focus, Inc. guarantees its Vortex lasers to be free of material and workmanship defects for

one year from the date of shipment or 3,000 hours of operation, whichever comes ﬁrst. This

warranty is in lieu of all other guarantees expressed or implied and does not cover incidental or

consequential loss.

Please note that each Vortex laser is custom built to the user’s exact wavelength speciﬁcation.

Because of the custom nature of this product, returns are accepted only within 30 days from the

date of purchase and are subject to a restocking fee of 50% of the original cost.

Products described in this document are covered by U.S. Patents #5,319,668 and #5,995,521 and

European Patent #0 693 231 B1.

Information in this document is subject to change without notice.

The and logos, and NEW FOCUS, Inc. are registered

trademarks and Vortex is a trademark of NEW FOCUS, Inc. Littelfuse and Slo-Blo are registered

trademarks of Littelfuse, Inc.

Document Number 600013 Rev. H

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6000 Vortex Series Contents • 3

Contents

User Safety 5

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Laser Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Using the Safety Interlock . . . . . . . . . . . . . . . . . . . . . . . . . 7

Getting Started 9

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Unpacking the System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Setting Up the Laser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Starting the Vortex for the First Time . . . . . . . . . . . . . .11

General Operation 13

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

What’s Inside . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Mounting the Laser Head . . . . . . . . . . . . . . . . . . . . . . . . .14

Using the Front-Panel Controls . . . . . . . . . . . . . . . . . . .15

Turning on the Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Selecting an Operating Mode . . . . . . . . . . . . . . . . . . . . . 17

Displaying and Setting the Laser Parameters . . . . . . .19

Restoring Local (Front-Panel) Control . . . . . . . . . . . . .20

Modulating the Laser Output . . . . . . . . . . . . . . . . . . . . . 20

Reading an Input Signal . . . . . . . . . . . . . . . . . . . . . . . . . . 23

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4 • Contents NEW FOCUS, Inc.

Constant-Power Mode 25

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Preparing to Use Constant-Power Mode . . . . . . . . . . .25

Operating in Constant-Power Mode. . . . . . . . . . . . . . .26

Computer Control 29

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Using the IEEE-488 Interface . . . . . . . . . . . . . . . . . . . . . .29

Using the RS-232 Interface. . . . . . . . . . . . . . . . . . . . . . . .30

Restoring Local (Front-Panel) Control . . . . . . . . . . . . .31

Understanding the Command Types . . . . . . . . . . . . . .31

Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Command Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Command Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . .36

Principles of Operation 49

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

General Theory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Changing the AC-Voltage Selection 53

Customer Service 55

Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Technical Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Appendix I: Physical Specifications 57

Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Laser Head and Mounting Bracket. . . . . . . . . . . . . . . . .58

Appendix II: RS-232 Connector Wiring 59

Index 61

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6000 Vortex Series User Safety • 5

User Safety

Introduction

Your safe and effective use of this product is of utmost importance to

us at New Focus. Please read the following laser safety information

before attempting to operate the laser.

Laser Safety

The laser radiation emitted from this unit may be harmful. Always

follow these precautions:

• Avoid direct exposure to the beam.

• Avoid looking at the beam directly.

• Be aware of and follow the warnings on the safety labels (examples

are shown on page 6).

• To completely shut off power to the unit, turn off the keyswitch.

The

Power

button on the front of the controller controls power to

the laser diode; even when the power to the diode is off, power is

still being supplied to the laser head for temperature control.

• Do not open the laser head or controller.

Diode-laser power at the wavelengths shown in the following table could be

accessible inside the laser head. There are no user-serviceable parts inside the

laser head or controller. Unauthorized opening of the head or controller will

void the warranty and may result in misalignment of the laser cavity and/or

irreparable damage to the internal components.

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6 • User Safety NEW FOCUS, Inc.

The following table contains a list of wavelength ranges and maximum

internal powers accessible inside the different model laser heads. Look

at the label on top of your laser head for its model number and its

speciﬁc wavelength.

The actual output power and wavelength range of your laser will only be a fraction

of the internal diode power and wavelength range shown here.

Label Identiﬁcation

The aperture and danger labels shown here pertain to different

wavelength laser heads. Depending on your speciﬁc wavelength

requirements, other labels similar to those shown may be used.

Figure 1:

Labels on the

front and top of

the laser head

Model Wavelength Range Max. Power

6003 350–500 nm 10 mW

6005 600–645 nm 15 mW

6009 630–710 nm 30 mW

6013 710–800 nm 70 mW

6017 760–905 nm 100 mW

6021 830–1180 nm 100 mW

6025 1100–1480 nm 30 mW

6027 1350–1650 nm 50 mW

6029, 6029-Power 1380–1710 nm 50 mW

6031 1550–1900 nm 25 mW

6033 1610–2400 nm 100 mW

Note:

External-Cavity Diode Laser

Wavelengths :

Model Number :

Serial Number :

Manufactured :

This product conforms to the applicable requirements of

21 CFR 1040.10 and 1040.11 at the date of manufacture.

VORTEXTM

AVOID EXPOSURE

LASER LIGHT EMITTED

FROM THIS APERTURE

AVOID EXPOSURE

INVISIBLE LASER RADIATION

EMITTED FROM 

THIS APERTURE



Front of laser head Aperture labels Certification label

Vortex6000.book Page 6 Tuesday, February 19, 2002 3:25 PM

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6000 Vortex Series User Safety • 7

Figure 2:

Labels on the back

of the laser head

Using the Safety Interlock

The safety interlock connector on the back of the Vortex controller is

provided for external safety systems. The system is shipped with a

jumper across the interlock terminals. Do not remove this jumper

unless you are using the safety interlock feature; the laser will not emit

light unless the interlock circuit is closed. The circuit carries 15-V DC.

Back of laser head Danger labels

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8 • User Safety NEW FOCUS, Inc.

Vortex6000.book Page 8 Tuesday, February 19, 2002 3:25 PM

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6000 Vortex Series Getting Started • 9

Getting Started

Introduction

This section outlines the basic steps needed to start using your Vortex

laser system, including information on unpacking the system and brief

set-up and starting notes. For more detailed information on how to

operate the instrument, refer to the “General Operation” chapter

beginning on page 13.

Unpacking the System

Carefully unpack the Vortex laser system. Compare the contents

against the packing slip and inspect them for any signs of damage. If

parts are missing or you notice any signs of damage, such as dented or

scratched covers, or broken knobs, please contact New Focus

immediately.

For orders with multiple heads, up to 3 heads may be shipped in the same

container.

Save the shipping container and packing material for future shipping

needs.

Check that the power module on the back of the controller is set for the

proper AC line voltage (see page 53 for information on checking and

changing the voltage).

Note:

Vortex6000.book Page 9 Tuesday, February 19, 2002 3:25 PM

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