OPHIR Beam Cube Manuale utente
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Beam Cube
INDUSTRIAL LASER BEAM ANALYZER
USER MANUAL
Beam Cube
Beam Cube
www.ophiropt.com
OPHIR OPTRONICS
Rev B1.31-U2.30-1
March-12-2008
Initial Revision
Beam Cube User Guide Introduction
iii
Contents
1Introduction ...................................................................... 5
1.1 Manual Overview.................................................................5
1.2 System Requirements.........................................................6
2System Components and Setup ..................................... 7
2.1 Package Contents...............................................................7
2.2 Beam Cube Assembly.........................................................7
2.3 Beam Cube External Interfaces ..........................................8
3Software Installation and Registration......................... 10
3.1 Spiricon SP Camera Registration and Installation ............10
3.2 StarLab Software Installation (optional) ............................10
3.3 Oscilloscope Software Installation (Optional)....................11
4Setting up for Measurements........................................ 12
4.1 Positioning the Beam Cube and the Laser Under Test.....12
4.2 Electrical Connections.......................................................13
4.3 Setup for Beam Profiling and Operation............................14
4.4 Setup for Power/Energy Measurement using the USB
Interface............................................................................18
4.5 Setup for Temporal Pulse Shape Measurement ...............19
5Beam Profile Measurement ........................................... 21
5.1 Default Startup ..................................................................21
5.2 Add Panel..........................................................................22
5.3 2D Display.........................................................................23
Contents Beam Cube User Guide
iv
5.4 Numerical Values..............................................................24
5.5 Profile Graphs ...................................................................25
5.6 1D Gaussian Fit.................................................................26
5.7 1D Top Hat Fit...................................................................27
5.8 Report Generation.............................................................28
5.9 Beam Wander ...................................................................29
5.10 3D Display.........................................................................29
5.11 Video Data Control............................................................30
5.12 Region of Interest..............................................................31
5.13 Major/Minor Axes ..............................................................32
5.14 Automation........................................................................33
6Power Measurement ...................................................... 34
6.1 Starting and Ending a StarLab Application Session..........34
6.2 Configuring the Display for Power Readings.....................35
7Specifications................................................................. 40
8Ordering Information ..................................................... 42
Beam Cube User Guide Introduction
1 Introduction
The quality and repeatability of laser material processing
is critically dependent on control of the various laser
parameters from production run to production run. The
Beam Cube now allows the operator to measure and
monitor these parameters for industrial Nd:YAG, Diode
and Fiber laser systems of up to 150W average power in
real time and thus closely control the process. It does this
by combining the Beam Profiling capabilities of the
Spiricon series of cameras with the power and temporal
pulse shape measurement capabilities of Ophir’s BA
series.
The user should also check Ophir’s Web page for the latest
updates and FAQs not covered in this manual.
5
Note: This manual is a companion to the BeamStar
User Manual that is included in the Beam Cube
package. All features of the BeamStar software are
available with the Spiricon camera that is embedded in
the Beam Cube.
1.1 Manual Overview
This manual describes the following:
•System Requirements and Components
•Overview of Beam Profiling Capabilities
•Power and Energy Measurement
•Temporal Pulse Shape Analysis
Introduction Beam Cube User Guide
1.2 System Requirements
•Pentium 4, at least 1.7 GHz (>2 GHz for best
performance)
•256 MB of memory
•USB 2.0 port
•Windows XP SP2, Windows Vista-32
•Free USB port on the PC
6
Note: Windows stores all installation information in the
Windows Registry. Therefore, when installing any of the
software components or when attaching the Beam Cube
or USB Interface for the first time, the user must be
logged in with Administrator Privileges.
Beam Cube User Guide System Components and Setup
7
2 System Components and Setup
2.1 Package Contents
The Beam Cube package comes with the following
components
•Beam Cube Assembly
•Beam Cube User Manual
•BeamStar User Manual
•USB cable
•External cable for Thermal head
•BNC to BNC cable
•BeamStar installation CD-Rom
•Ophir Displays CD-Rom
2.2 Beam Cube Assembly
The Beam Cube Assembly contains the following
components
•Spiricon SP503U camera for Beam Profiling (or
SP620U camera in Beam Cube 620 version)
•2 Beam Splitters to reduce the power intensity of
the laser beam as it hits the Spiricon camera by a
factor of 400:1
•A negative imaging lens to expand the size of the
laser beam by a factor of 2-3 while moving the
focal point out, thereby enabling profiling of focal
spots as small as 50µm in size. The lens can also
be removed to measure parallel beams of up to
7mm in size. A -100mm lens is supplied with the
system. Other focal lengths can be purchased if
necessary.
System Components and Setup Beam Cube User Guide
•Photodiode Trigger to enable synching Beam
Profile measurements with pulsed lasers and to
look at the temporal beam shape.
•Variable Attenuator to further reduce the intensity
of the laser beam as it strikes the Spiricon SP
camera
•An Ophir 100C power meter capable of measuring
100W continuously and 150W for short periods.
8
Figure 1: View of components of Beam Cube
Assembly
Beam splitters
SP beam
profiler unit
A
ttenuators
2nd rod
1st rod
Optical trigger
Ophir 100C power meter
Exchangeable input
negative lens
2.3 Beam Cube External Interfaces
The Beam Cube Assembly has 5 external interfaces
•Entrance window for laser beam under test
•USB socket for the Spiricon SP camera
Beam Cube User Guide System Components and Setup
•Connector to attach the power head to power meter
or USBI device
•BNC Output to oscilloscope
•Handles to adjust the Variable Attenuator
Figure 2: Beam Cube with complete casing
9
Software Installation and Registration Beam Cube User Guide
3 Software Installation and Registration
3.1 Spiricon SP Camera Registration and Installation
Spiricon SP camera registration and BeamStar FX
software installation is described fully in the BeamStar
User Manual. A short summary is described here. If any
trouble is encountered in the course of
installation/registration, turn to the BeamStar User Manual
1. Connect the Beam Cube via its USB connector to
the PC.
2. Windows will start its Found New Hardware
Wizard. Press Cancel.
3. Insert the BeamStar FX distribution CD-ROM in
the CD-ROM drive.
4. To start the installation, locate and double-click the
setup icon (setup.exe).
5. When the Choose Installation Type window
appears, select Standard.
10
Note: You must have administrative privileges to install
the software and register the Beam Cube’s Spiricon SP
camera.
3.2 StarLab Software Installation (optional)
If you have purchased the USB Interface to display the
laser power then proceed as follows:
1. Start your computer.
2. Insert the CD into the CD-ROM drive.
3. The CD software should start automatically. If it
does not, double-click index.htm from the CD-
ROM drive to start the software.
4. Under the main heading, click USBI.
Indice
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