Teledyne Princeton Instruments FER785-MM User manual

www.princetoninstruments.com
FER785-MM Diode Laser Source
User Manual
4411-0157
Issue 2
March 29, 2019

All rights reserved. No part of this publication may be reproduced by any means without the written permission of Teledyne Princeton
Instruments.
Printed in the United States of America.
Pentium is a registered trademark of Intel Corporation.
Scientific Imaging ToolKit and SITK are trademarks of R Cubed Software Consultants, LLC.
PVCAM, IntelliCal, IsoPlane, LightField, and PI-MAX are registered trademarks of Teledyne Digital Imaging US, Inc..
Windows and Windows Vista are registered trademarks of Microsoft Corporation in the United States and/or other countries.
The information in this publication is believed to be accurate as of the publication release date. However, Teledyne Princeton
Instruments does not assume any responsibility for any consequences including any damages resulting from the use thereof. The
information contained herein is subject to change without notice. Revision of this publication may be issued to incorporate such
change.
Copyright 2017-2019
All Rights Reserved
Teledyne Princeton Instruments
3660 Quakerbridge Rd
Trenton, NJ 08619
TEL: [phone]
FAX: [phone]
2 FER785-MM Diode Laser Source User Manual Issue 2
Revision History
Issue Date List of Changes
Issue 2 March 29, 2019 Issue 2 of this document incorporates the following changes:
•Rebranded to Teledyne Princeton Instruments.
Issue 1 April 5, 2017 This is the initial release of this document.

Table of Contents
Chapter 1: About this Document. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Document Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.4 Symbols Used in this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.5 FER785-MM Diode Laser Source Safety Information . . . . . . . . . . . . . . . . . . . . . . . . 7
1.5.1 Laser Warning Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Chapter 2: FER785-MM Diode Laser Source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
2.1 Mounting an FER785-MM Diode Laser Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.2 Host Computer Communications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.3 Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Chapter 3: Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Chapter 4: Remote Safety Interlock Connections. . . . . . . . . . . . . . . . . . . . . . . . . 15
Appendix A: Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
A.1 Assembly Part Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
A.2 Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
A.3 Diode Laser Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
A.4 Power Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
A.5 Environmental Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Appendix B: Outline Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
B.1 FER785-MM Diode Laser Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Warranty and Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Basic Limited One (1) Year Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Limited One (1) Year Warranty on Refurbished or Discontinued Products. . . 23
XP Vacuum Chamber Limited Lifetime Warranty. . . . . . . . . . . . . . . . . . . . . . . . . 23
Sealed Chamber Integrity Limited 12 Month Warranty. . . . . . . . . . . . . . . . . . . . 24
Vacuum Integrity Limited 12 Month Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Image Intensifier Detector Limited One Year Warranty . . . . . . . . . . . . . . . . . . . 24
X-Ray Detector Limited One Year Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Software Limited Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Owner's Manual and Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Your Responsibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Contact Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4 FER785-MM Diode Laser Source User Manual Issue 2
List of Figures
Figure 1-1: Typical Laser Aperture Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Figure 1-2: Typical Laser Warning Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Figure 2-1: Typical FER785-MM Diode Laser Source . . . . . . . . . . . . . . . . . . . . . . . . . .9
Figure 3-1: FER785-MM Diode Laser Source with Dust Cap in Place . . . . . . . . . . . 11
Figure 3-2: FER785-MM Diode Laser Source: Rear of Housing . . . . . . . . . . . . . . . .12
Figure 3-3: Typical FER785-MM Diode Laser Source: Power On . . . . . . . . . . . . . . .13
Figure 3-4: Typical FER785-MM Diode Laser Source: GATE Mode . . . . . . . . . . . . .14
Figure 4-1: FER785-MM Diode Laser Source Remote Safety Interlock
Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Figure B-1: Outline Drawing: FER785-MM Diode Laser Source . . . . . . . . . . . . . . . .21
List of Tables
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Table 1-1: Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Table A-1: Assembly Part Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table A-2: FER785-MM Diode Laser Source Mechanical Specifications. . . . . . . . . .17
Table A-3: FER785-MM Diode Laser Source Technical Specifications . . . . . . . . . . .18
Table A-4: Power Specifications: External FER785-MM Diode Laser
Source Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Table A-5: FER785-MM Diode Laser Source Environmental Specifications. . . . . . .19

5
Chapter 1: About this Document
Thank you for purchasing a FER785-MM Diode Laser Source from Teledyne Princeton
Instruments. Since 1981 Teledyne Princeton Instruments has been the legendary name
behind the most revolutionary spectroscopy and imaging products for cutting edge
research.
Please read the manual carefully to help you optimize the many features of this device
to suit your research needs.
If you have any questions about the information contained in this manual, contact the
Teledyne Princeton Instruments customer service department. Refer to Contact
Information on page 26 for complete contact information.
1.1 Intended Audience
This user manual is intended to be used by scientists and other personnel responsible
for the installation, setup, configuration, and acquisition of imaging data collected
using an FER785-MM Diode Laser Source.
This document provides all information necessary to safely install, configure, and
operate the FER785-MM Diode Laser Source.
1.2 Related Documentation
Table 1-1 provides a list of related documentation and user manuals that may be useful
when using the FER785-MM Diode Laser Source. To guarantee up-to-date information,
always refer to the current release of each document listed.
Teledyne Princeton Instruments maintains updated documentation and user manuals
on their FTP site. Visit the Teledyne Princeton Instruments FTP Site to verify that the
most recent user manual is available and being referenced:
ftp://ftp.piacton.com/Public/Manuals/Princeton Instruments
ftp://ftp.piacton.com/Public/Manuals/Acton
Table 1-1: Related Documentation
Document Number Document Title
4411-0154 Fergie User Manual
– FER785-MM Diode Laser Source Data Sheet

6 FER785-MM Diode Laser Source User Manual Issue 2
1.3 Document Organization
This manual includes the following chapters and appendices:
•Chapter 1, About this Document
Provides information about the organization of this document, as well as
related documents, safety information, and conventions used throughout the
manual.
•Chapter 2, FER785-MM Diode Laser Source
Provides an introduction to the FER785-MM Diode Laser Source.
•Chapter 3, Operation
Provides information about how to use the FER785-MM Diode Laser Source.
•Chapter 4, Remote Safety Interlock Connections
Provides information about installing and using the Remote Safety Interlock
connection on the FER785-MM Diode Laser Source.
•Appendix A, Technical Specifications
Provides technical specifications for the FER785-MM Diode Laser Source.
•Appendix B, Outline Drawings
Provides outline drawings for the FER785-MM Diode Laser Source.
•Warranty and Service
Provides warranty information for the FER785-MM Diode Laser Source. Contact
information is also included.
1.4 Symbols Used in this Manual
The following symbols may used throughout this manual.
WARNING!
Describes actions/hazards that may result in personal injury
or death.
WARNING! RISK OF ELECTRIC SHOCK!
Describes actions/hazards that may cause an electric shock
resulting in personal injury or death.
CAUTION!
!
Describes actions that may severely damage a product,
including, but not limited to, data loss.
NOTE:
Supplemental information that is considered important.
REFERENCES:
Provides information about additional reference material.

Chapter 1 About this Document 7
1.5 FER785-MM Diode Laser Source Safety Information
This section provides critical safety information when using an FER785-MM Diode Laser
Source.
WARNING!
There are no user-serviceable parts within an FER785-MM
Diode Laser Source enclosure.
WARNING!
Use of controls or adjustments, or the performance of
procedures other than those specified within this
document, may result in hazardous radiation exposure
1.5.1 Laser Warning Symbols
This section illustrates typical Laser Warning Labels related to the operation of the
FER785-MM Diode Laser Source.
Figure 1-1: Typical Laser Aperture Label
Figure 1-2: Typical Laser Warning Label
4411-0157_0001
4411-0157_0002

8 FER785-MM Diode Laser Source User Manual Issue 2
This page is intentionally blank.

9
Chapter 2: FER785-MM Diode Laser
Source
The FER785-MM Diode Laser Source is well suited for bench top fiber coupled
experiments including Raman spectroscopy. The laser housing contains a 785 nm
wavelength stabilized multi-mode diode laser with programmable power output up to
475 mW CW. A FC/PC fiber terminal optimized for 105 micron core multimode allows
coupling to the user's excitation fiber for experiments. An FC/PC fiber cap and beam
stop is provided for safety and to prevent dust from accumulating on the fiber
interconnect.
Figure 2-1: Typical FER785-MM Diode Laser Source
The head of each laser module has the Fergie interlocking cube interface allowing
direct coupling to many optomechanical components designed to accelerate
experiment design and construction. Mounting of the laser to an optical bench is easily
accomplished using the included adapter plate.
Safety features on the laser source include a security key card which allows the laser
source to be locked out and prevents laser emission. Remote safety interlock control is
conveniently provided through a 1/8 inch mono plug on the rear of the housing.
4411-0157_0003

10 FER785-MM Diode Laser Source User Manual Issue 2
2.1 Mounting an FER785-MM Diode Laser Source
Although not necessary for operation, the FER785-MM Diode Laser Source can be
secured to an optical breadboard using the supplied adapter plate.
To secure the FER785-MM Diode Laser Source, insert the screws provided into the plate
and secure them to the bottom of the housing.
2.2 Host Computer Communications
The FER785-MM Diode Laser Source communicates with the host computer using
standard USB 2.0 protocols.
2.3 Certifications
The FER785-MM Diode Laser Source complies with the following certifications:
•CE;
•CDRH;
•IEC 60825-1:2007.

11
Chapter 3: Operation
WARNING!
Always observe proper laser safety when operating this
source.
This chapter provides information about the use and operation of the FER785-MM
Diode Laser Source.
1. Remove the Dust Cap/Beam Attenuator that is secured to the FC/PC fiber terminal.
See Figure 3-1.
Figure 3-1: FER785-MM Diode Laser Source with Dust Cap in Place
2. For fiber coupling applications, attach a 105 micron core diameter 0.22 NA fiber to
the FC/PC terminal located at the head of the laser housing.
3. Secure the emission end of the fiber to the appropriate terminal in the experiment.
4411-0157_0004
DUST CAP/BEAM ATTENUATOR
COVERING LASER APERTURE

12 FER785-MM Diode Laser Source User Manual Issue 2
4. Insert the Safety Key Card into the slot labeled KEY on the rear of the laser housing.
See Figure 3-2.
Figure 3-2: FER785-MM Diode Laser Source: Rear of Housing
5. Insert a 3.5 mm mono plug that is wired in series with room or safety enclosure
remote interlock circuitry into the Remote Safety Interlock Connector (ILOC) on the
rear of the housing. See Figure 3-2.
NOTE:
If remote safety interlocks are not being used, an interlock
defeating pin is provided to allow the laser source to
operate. Insert the interlock defeating pin now or proceed
to Chapter 4, Remote Safety Interlock Connections, on
page 15 for information about properly setting up interlock
connections.
6. If using USB control, connect the host end of the cable to an available USB port on
the host computer and the peripheral end to the port labeled USB on the rear of the
housing. See Figure 3-2.
7. Connect the power supply to the laser by plugging the DC jack into the PWR socket
on the rear of the housing. See Figure 3-2.
4411-0157_0005
DC POWER INPUT
USB 2.0 PORT
REMOTE SAFETY
COAXIAL INPUT FOR
SAFETY KEY CARD
INTERLOCK CONNECTOR
PULSE MODE

Chapter 3 Operation 13
8. To turn on the FER785-MM Diode Laser Source, press the power button
located on the front of the housing ONE TIME.
The amber LASER ON LED illuminates indicating that the laser source is energized.
See Figure 3-3.
Figure 3-3: Typical FER785-MM Diode Laser Source: Power On
9. Laser output power can now be controlled using Teledyne Princeton Instruments
LightField software.
NOTE:
The laser source always defaults to its nominal output
power rating following startup.
4411-0157_0006
AMBER
CONSTANT ON

14 FER785-MM Diode Laser Source User Manual Issue 2
10. Pressing the power button on the front of the housing a SECOND time
switches the laser to GATE (or PULSE) mode.
NOTE:
Laser radiation is emitted only when the incoming signal at
the PULSE input on the rear of the laser housing is HIGH.
See Figure 3-2.
The amber LASER ON LED remains on, and the blue GATE LED begins to flash. See
Figure 3-4.
Figure 3-4: Typical FER785-MM Diode Laser Source: GATE Mode
11. Pressing the power button a THIRD time turns the FER785-MM Diode Laser
Source OFF. All LEDs are extinguished.
4411-0157_0009
BLUE
FLASHING
AMBER
CONSTANT ON

15
Chapter 4: Remote Safety Interlock
Connections
The FER785-MM Diode Laser Source is equipped with a 3.5 mm mono jack Remote
Safety Interlock connector located on the rear of the laser housing. See Figure 4-1.
Figure 4-1: FER785-MM Diode Laser Source Remote Safety Interlock Connector
The laser drive circuit will be enabled only when the terminals of the Interlock
Connector are short-circuited. This is typically achieved using one (or more) remotely
activated NORMALLY OPEN switches (i.e., open door indicators,) that are connected in
series. In order for the laser to be enabled, each door must be closed, which in turn
closes its corresponding switch. Only when all doors are closed and secure will the
circuit be closed, thus shorting the two Interlock Connector terminals.
When wired properly, if any one of the interlock switches is opened (i.e., a door is
opened,) the laser is then automatically disabled.
WARNING!
Never apply an external voltage to the Remote Safety
Interlock Connector.
4411-0157_0005
REMOTE SAFETY
INTERLOCK CONNECTOR

16 FER785-MM Diode Laser Source User Manual Issue 2
All FER785-MM Diode Laser Source units are shipped with a 3.5 mm shorting pin
pre-installed on the ILOK connector.
•If the Remote Interlock feature will not be utilized, this shorting pin should
remain in place, and the FER785-MM Diode Laser Source will operate normally.
•To use the Remote Interlock feature, obtain a 3.5 mm mono connector and a
sufficient number of NORMALLY OPEN switches (i.e., one switch per door,) for
the application. Then wire the interlock switch(es) in series.
NOTES:
1. The Remote Interlock connector only accepts 3.5 mm
mono phono jack connectors. This connector is
available at most electrical supply shops.
2. All interlock switches must be NORMALLY OPEN, dry
contacts.

17
Appendix A: Technical Specifications
CAUTION!
!
All specifications are subject to change.
This appendix provides technical specifications for the FER785-MM Diode Laser Source.
Additional information may be found on data sheets available on the Teledyne
Princeton Instruments website (www.princetoninstruments.com).
A.1 Assembly Part Numbers
Refer to Table A-1 for assembly part numbers.
A.2 Mechanical Specifications
Refer to Table A-2 for FER785-MM Diode Laser Source mechanical specifications.
Table A-1: Assembly Part Numbers
Assembly Part Number
FER785-MM Diode Laser Source
FER785-MM Diode Laser Source power supply 4010-0024
Table A-2: FER785-MM Diode Laser Source Mechanical Specifications
Parameter Specification
Length 180 mm
Width 60 mm
Height 62 mm
Weight 0.68 kg (1.5 lbs)

18 FER785-MM Diode Laser Source User Manual Issue 2
A.3 Diode Laser Specifications
Refer to Table A-3 for diode laser specifications.
A.4 Power Specifications
All voltages required by the FER785-MM Diode Laser Source are generated and
delivered by an external power supply included with each FER785-MM Diode Laser
Source using the supplied cables.
Power to the FER785-MM Diode Laser Source is switched on and off using the POWER
pushbutton on the front panel of the unit.
WARNING!
There are no user-serviceable parts within an FER785-MM
Diode Laser Source enclosure.
WARNING!
In case of a fire or other emergency, immediately remove
the power supply’s AC plug from the wall receptacle.
Table A-3: FER785-MM Diode Laser Source Technical Specifications
Parameter Specification
Output Coupling FC/PC
Wavelength 785 nm
Wavelength Tolerance ±0.5 nm
Spectral Line Width <0.15 nm
Side Mode Suppression Ratio 35 – 45 dB
Output optical power 475 mW maximum
Beam divergence 8.0 Degrees
N.A. and core diameter of coupling fiber 0.22 NA /105 micron
Output Power Stability 1% typical
Peak wavelength drift ±7 ppm
Operating Lifetime 10,000 hours (typical)
Filter Size 0.5” [12.5 mm] diameter up to 0.2” [5 mm] thick

Appendix A Technical Specifications 19
Refer to Table A-4 for power specifications for the FER785-MM Diode Laser Source
external power supply.
A.5 Environmental Specifications
Refer to Table A-5 for environmental specifications.
Table A-4: Power Specifications: External FER785-MM Diode Laser Source Power
Supply
Parameter
Specification
Unit
Minimum Nominal Maximum
Input Voltage 90 100
120
220
240
264 VAC
Input Frequency 47 50
60
63 Hz
Input Current — 0.5 — AAC
Input Power — — 60 W
Output Voltage — 7.5 — VDC
Output Current — 2.93 ADC
Table A-5: FER785-MM Diode Laser Source Environmental Specifications
Parameter
Specification
Minimum Nominal Maximum
Storage Temperature -15°C — +70°C
Operating Temperature +5°C — +30°C
Operating Ambient Relative Humidity <50% (non-condensing)

20 FER785-MM Diode Laser Source User Manual Issue 2
This page is intentionally blank.