Ocean Optics Laser-785 User Manual

Laser-785

Installation and Operation Manual

Document Number 000-30000-010-02-0605

Offices:

E-mail: [e-mail] (General sales inquiries)

Ocean Optics, Inc.

830 Douglas Ave., Dunedin, FL, USA 34698

Phone [phone]

Fax [phone]

8 a.m.– 8 p.m. (Mon-Thu), 8 a.m.– 6 p.m. (Fri) EST

Ocean Optics B.V. (Europe)

Geograaf 24, 6921 EW DUIVEN, The Netherlands

Phone [phone]

F ax 31-(0)26-3190505

[e-mail] (European sales inquiries)
[e-mail] (Questions about orders)
[e-mail] (Technical support)

Protective Eye Wear Should Be Worn
When Using This Instrument - Intense
Radiation Present

WARNING

See Important Safety Notices inside.

Copyright © 2001-2005 Ocean Optics, Inc.

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, by any means, electronic,
mechanical, photocopying, recording, or otherwise, without written permission from Ocean Optics, Inc.
This manual is sold as part of an order and subject to the condition that it shall not, by way of trade or otherwise, be lent, re-sold, hired out or
otherwise circulated without the prior consent of Ocean Optics, Inc. in any form of binding or cover other than that in which it is published.

Trademarks

Microsoft, Windows, Windows 95, Windows 98, Windows Me, Windows NT, Windows 2000, Windows XP and Excel are either registered
trademarks or trademarks of Microsoft Corporation.

Limit of Liability

Every effort has been made to make this manual as complete and as accurate as possible, but no warranty or fitness is implied. The information
provided is on an “as is” basis. Ocean Optics, Inc. shall have neither liability nor responsibility to any person or entity with respect to any loss or
damages arising from the information contained in this manual.

Important Safety Notices

The laser described here is safe to operate, provided the user pays attention to all safety warnings:

1. Post warnings in the area of the laser beam to alert those present.

2. Keep all unauthorized personnel out of the area where the laser is operated.

3. Whenever the laser is running and the beam is not in use, it is good operating practice to
mechanically block the path.

4. Never look directly into the laser source or scattering laser light from any reflective surface.
Never sight down the beam into the source.

5. Maintain experimental setup at low heights to prevent inadvertent beam-eye contact.

6. As a precaution against accidental exposures to the output beam or its reflection, operators should
wear laser safety glasses attenuated to the wavelength being generated.

Sources for additional information and assistance on laser safety are the following:

Center for Device and Radiological Health
Office of Compliance
2098 Gaither Rd.
Rockville, MD 20850
Tel: [phone]
Fax: [phone]

Laser Institute of America
12424 Research Parkway, Suite 125
Orlando, FL 32826
Tel: [phone]
Fax: [phone]

000-30000-010-02-0605 A

Important Safety Notices

Compliance

The Ocean Optics Laser-785 is certified to be in compliance with Class IIIb. It is equipped with a keylock
switch, remote control connector, laser radiation emission indicator, emission time delay (in the laser
driver), and appropriate warning labels. The following labels were designed to warn the user of potential
hazard:

B 000-130000-010-02-0605

Table of Contents

About This Manual..............................................................................iii

Document Purpose and Intended Audience .............................................................................. iii

Document Summary .................................................................................................................. iii

Product-Related Documentation................................................................................................ iii

Upgrades......................................................................................................................... iii

Chapter 1: Introduction ......................................................................1

Overview.......................................................................................................................... 1

Features .......................................................................................................................... 1

Package Contents ........................................................................................................... 2

Additional Equipment Required....................................................................................... 2

Chapter 2: Set-up and Operation.......................................................3

Overview.......................................................................................................................... 3

Set-up.............................................................................................................................. 4

Operation......................................................................................................................... 5

Appendix A: Specifications................................................................7

Index .....................................................................................................9

000-30000-010-02-0605 i

Table of Contents

ii 000-30000-010-02-0605

About This Manual

Document Purpose and Intended Audience

This document provides you with information to get your laser set up and operating.

Document Summary

Chapter Description

Chapter 1: Introduction

Chapter 2: Set-up and Operation Provides instructions for setting up and operating the

Appendix A: Specifications Provides a list of product specifications.

Contains a list of product features and package
contents.

laser.

Product-Related Documentation

You can access documentation for Ocean Optics products by visiting our website at

http://www.oceanoptics.com. Select Technical → Operating Instructions, then choose the appropriate

document from the available drop-down lists. Or, use the Search by Model Number field at the bottom
of the web page.

You can also access operating instructions for Ocean Optics products on the Software and Technical
Resources CD included with the system.

Engineering-level documentation is located on our website at Technical → Engineering Docs.

Upgrades

Occasionally, you may find that you need Ocean Optics to make a change or an upgrade to your system.
To facilitate these changes, you must first contact Customer Support and obtain a Return Merchandise
Authorization (RMA) number. Please contact Ocean Optics for specific instructions when returning a
product.

000-30000-010-02-0605 iii

About This Manual

iv 000-30000-010-02-0605

Chapter 1

Introduction

Overview

The Ocean Optics LASER-785 is a narrow spectral line-width, high-power laser, specifically developed
for the application of Raman spectroscopy. It is compact and rugged for various industrial applications
with an integrated laser driver, thermoelectric cooler, TEC controller and efficient fiber coupling. The
module is powered by a 5V DC input with low-power consumption. The laser module also provides a
TTL modulation port, which can accept a modulation control input of up to 100 kHz.

Laser-785

Features

The Ocean Optics Laser-785 offers the following features:

• Fiber coupling: 100 µm at 0.22NA

• Narrow spectral line-width

• Compact package integrated with laser and driver

000-30000-010-02-0605 1

1: Introduction

• Rugged design with laser welded key component

• Hermetically sealed laser component

• Low power consumption with 5VDC input

o

• Operating between –10

C to 40 oC

• Long life time > 10,000 hours

• Best performance-to-cost ratio

• Ideal for medical and sensor instruments

Package Contents

Your Laser-785 package contains the following:

 One (1) Ocean Optics Laser-785
 One (1) power cord
 Two (2) keys
 One (1) remote plug
 One (1) Test Results sheet

Additional Equipment Required

The following equipment, available from Ocean Optics, is also required to use your Laser-785:

 A 100 µm output fiber or a Raman Probe (such as the RIP-RPS)

Caution

Never use an output fiber that is smaller than 100 µm. In addition, you must use
epoxy-free fiber, otherwise it can damage the internal fiber optics.

 Safety goggles (R-2001-GL goggles from Ocean Optics are recommended)

2 000-30000-010-02-0605

Chapter 2

Set-up and Operation

Overview

This section provides instructions for setting up and operating the Laser-785. Read all instructions and
warnings carefully before attempting to install and operate your laser.

Laser-785 Front View

000-30000-010-02-0605 3

2: Set-up and Operation

Rear Panel View

Set-up

► Procedure

1. Carefully clean the tip of the output fiber.

2. Unscrew the safety cap from laser’s SMA receptacle (OUTPUT).

3. Connect the fiber to the laser’s SMA receptacle (OUTPUT).

4. Connect the power cord to the receptacle on the rear panel of the laser and the other end to a
100-240 VAC power wall outlet. The power cord is a 3-wire cable; ensure that a suitable ground
wall outlet is used.

5. Ensure that the remote control connector on the laser’s rear panel is plugged in and the remote
control circuit has been completed. The laser will be disabled if the center two pins are
disconnected.

4 000-30000-010-02-0605

2: Set-up and Operation

Operation

Read the following warnings before attempting to use the laser:

WARNINGS

DO NOT LOOK DIRECTLY INTO THE LASER. LASER RADIATION IS
HAZARDOUS TO THE EYES. When the laser is in operation but the beam is not
in use, block radiation by closing the shutter output aperture. AVOID DIRECT
EXPOSURE TO THE BEAM.

Never try to connect or disconnect the output fiber to or from the SMA connector
during laser operation. This could destroy the internal fiber optics.

► Procedure

1. Turn the power on by rotating the key until it is horizontal (lined up with the dark circle on the
left). The green Power LED lights.

2. Push the Emission button on the front panel to turn on the laser. The yellow Emission LED
lights.

3. Push the Emission button again to turn off the laser. The Emission LED turns off. Then turn off
the power with the key (key should rest in a vertical position).

IN CASE OF EMERGENCY

To shut down the laser for an emergency, press the large, red emergency button
(labeled PUSH) on the front panel. To release the switch, turn the knob clockwise.

4. When the laser is not in use, remove the fiber from the OUTPUT connector and replace the safety
cap.

000-10000-080-02-0505 5

2: Set-up and Operation

6 000-30000-010-02-0605

Specifications

Specifications Criteria
Optical

Power Output (CW) > 500mW

Peak Wavelengths 785 +/- 0.3nm

Spectral Line Width 0.2nm (typical)

Optical Power Stability <3% p-p over 8 hours

Appendix A

Noise <0.5% rms

Output Fiber

Connector SMA 905 (ST, FC/PC optional)

Expected Lifetimes > 10,000 hours

Electrical

Input Power Max. 3.0 A @ 5VDC

Rise Time

Control TTL modulation 0-100 kHz

Warm-up Time 10 – 15 min.

Mechanical

Physical Dimensions 110 x 89 x 53 mm

Cooling Internal Thermoelectric cooler

Weight 600 grams

Environmental

Ambient Temperature –10 to 40oC

100 µm@ 0.22NA (or Free Space output)

< 500 µsec

Humidity 5 – 95%, non-condensing

000-30000-010-02-0605 7

A: Specifications

8 000-30000-010-02-0605

Index

D

document

audience, iii
purpose, iii
summary, iii

E

emergency instructions, 5
equipment

required, 2

F

features, 1
front panel, 3

I

introduction, 1

O

P

package contents, 2
product-related documentation, iii

R

rear panel, 4
required equipment, 2

S

set-up, 4
specifications, 7

electrical, 7
environmental, 7
mechanical, 7
optical, 7

U

upgrades, iii

operation, 5

000-30000-010-02-0605 9

Index

10 000-30000-010-02-0605