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Related Manuals for OPHIR Beam Cube
Summary of Contents for OPHIR Beam Cube
- Page 1 Beam Cube Beam Cube INDUSTRIAL LASER BEAM ANALYZER USER MANUAL OPHIR OPTRONICS w w w . o p h i r o p t . c o m...
- Page 2 Rev B1.31-U2.30-1 March-12-2008 Initial Revision...
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Page 3: Table Of Contents
StarLab Software Installation (optional) ......10 Oscilloscope Software Installation (Optional) ....11 Setting up for Measurements ........12 Positioning the Beam Cube and the Laser Under Test ..12 Electrical Connections............13 Setup for Beam Profiling and Operation......14 Setup for Power/Energy Measurement using the USB Interface ................18... - Page 4 Contents Beam Cube User Guide Numerical Values ..............24 Profile Graphs ..............25 1D Gaussian Fit..............26 1D Top Hat Fit ..............27 Report Generation.............28 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...
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Page 5: Introduction
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. Note: This manual is a companion to the BeamStar User Manual that is included in the Beam Cube package. -
Page 6: System Requirements
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. -
Page 7: System Components And Setup
Beam Cube User Guide System Components and Setup System Components and Setup Package Contents The Beam Cube package comes with the following components • Beam Cube Assembly • Beam Cube User Manual • BeamStar User Manual • USB cable •... -
Page 8: Beam Cube External Interfaces
Beam splitters Ophir 100C power meter Attenuators Optical trigger Figure 1: View of components of Beam Cube Assembly Beam Cube External Interfaces The Beam Cube Assembly has 5 external interfaces • Entrance window for laser beam under test •... - Page 9 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...
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Page 10: Software Installation And Registration
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. -
Page 11: Oscilloscope Software Installation (Optional)
The software installation is complete. You can now connect the USBI or Pulsar device. Oscilloscope Software Installation (Optional) The Beam Cube can be connected directly to an oscilloscope, thereby enabling temporal pulse width analysis. Users may wish to see the temporal pulse shape on their PC instead. -
Page 12: Setting Up For Measurements
CCD camera should always be at a point before the focal spot or at the focal spot. The Beam Cube should never be placed so far from the source that the focal spot comes before the camera. -
Page 13: Electrical Connections
Beam Cube is 4.7mm and on the SP620 camera inside the Beam Cube 620 is 5.4mm (see note 1 above). As can be seen, the top of the Beam Cube should be placed between 23.6mm from the source to 36.7mm from the source to see from the largest sized beam (before the focal point) to the smallest (at the focal point). -
Page 14: Setup For Beam Profiling And Operation
Ophir smart display and regular oscilloscope). 1. Camera. Connect the USB to USB cable between the PC outlet of the Beam Cube and the USB2.0 port on the PC 2. Power meter. Connect the D15 to D15 cable between the power meter outlet of the Beam Cube and the power meter. - Page 15 BeamStar User Manual Quick Start Instructions 1. Position Beam Cube directly under laser at the correct distance from the output lens of the laser as calculated in the Excel program "Setup Program for YAG FSA and Beam Cube"...
- Page 16 Setting up for Measurements Beam Cube User Guide Figure 4: Camera Format Tab 3. Select the Camera Format Tab of the Control Panel (lower left corner of the BeamStar display) 4. Set the Optical Scale Factor to “Beam Expanded”. Set Times to the value given in the Excel program (magnification factor).
- Page 17 2 rod all the way in. (See fig 1). 10. Adjust the Beam Cube position to get the beam size and position you want. Raise the laser power to the level you want while adjusting the attenuator rods so that the camera gain is in the region noted in Figure 5.
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Page 18: Setup For Power/Energy Measurement Using The Usb Interface
Setup for Power/Energy Measurement using the USB Interface (If using an Ophir power meter, connect between the Beam Cube and your power meter using the included D15 – D15 cable and follow the instructions in your power meter manual). 1. Connect between the power meter output of the Beam Cube and head input point on the USBI instrument with the “external cable for Beam Cube... -
Page 19: Setup For Temporal Pulse Shape Measurement
2. Connect the PC oscilloscope module to the USB input of the laptop or desktop using the USB cable provided and connect the BNC cable from the Beam Cube to the left side BNC input of the oscilloscope. - Page 20 Figure 8: PC Scope screen 3. Start the PC oscilloscope program from its icon. 4. With the laser operating and the Beam Cube measuring, set the time scale to a value several times the laser pulse width, the voltage scale to auto, the input to DC and channel B to off.
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Page 21: Beam Profile Measurement
Beam Profile Measurement Most of the features of the BeamStar application can be used with the SP camera of the Beam Cube device. This section contains a summary of the BeamStar features. Please look in the BeamStar User Manual for a detailed description. -
Page 22: Add Panel
Beam Profile Measurement Beam Cube User Guide • Control Panel form containing a page for each of the various displays • 2D Display • 3D Display • Profile Graph 1 • Profile Graph 2 • Numerical Values 1 Add Panel Activate a graphic, calculation, or control display. -
Page 23: Display
Beam Cube User Guide Beam Profile Measurement name of the page; for instance, Profile Graphs 1 and 2. Camera functions can have only one instance. The buttons in the rightmost column represent Camera Control activities where only one instance is allowed. If one of these buttons is enabled then that activity can be started. -
Page 24: Numerical Values
Beam Profile Measurement Beam Cube User Guide • Calculations can be limited to a specific area of the camera by setting a Region of Interest. • By default is aligned to XY axes. Can be set to Major/Minor axes if the laser beam is rotated at an angle. -
Page 25: Profile Graphs
Beam Cube User Guide Beam Profile Measurement • Option to log selected measurements to a file • If Region of Interest is in affect, calculations will only be on pixels that are within the Region of Interest Profile Graphs Display the power distribution (“height of the pixels”) of the laser beam as a function of only one axis or measurement. -
Page 26: Gaussian Fit
Beam Profile Measurement Beam Cube User Guide • Axis can be X, Y, Major, or Minor • Line Profile is a slice through the laser beam along the axis selected • Sum Profile is made by summing parallel lines of pixels along the selected axis •... -
Page 27: Top Hat Fit
Beam Cube User Guide Beam Profile Measurement • Profile Display can be zoomed by click-drag- release of mouse • Configurable Pass/Fail performance indicators • If Region of Interest is in affect, display and calculations will be limited to pixels that are within... -
Page 28: Report Generation
Beam Profile Measurement Beam Cube User Guide • If Region of Interest is in affect, display and calculations will be limited to pixels that are within the Region of Interest Report Generation Generate a performance report of the laser under test. -
Page 29: Beam Wander
Beam Cube User Guide Beam Profile Measurement Beam Wander Graphic and statistical display of centroid instability over time. • Time scale selection from seconds to hours • Option to save numeric results to log file • Display wander in microns or microradians Figure 17: Beam Wander display set to AutoScale 5.10... -
Page 30: Video Data Control
Beam Profile Measurement Beam Cube User Guide Figure 18: 3D Display • Zoom, Pan, and Rotation of display by mouse control • Graphic results only. No beam analysis calculations 5.11 Video Data Control Record camera output frames for future analysis. Video... -
Page 31: Region Of Interest
Beam Cube User Guide Beam Profile Measurement 5.12 Region of Interest Limit calculations to a specific area of the BeamStar camera. Useful for multiple spot measurements or when the optical setup of the test causes unwanted reflections on the BeamStar camera... -
Page 32: Major/Minor Axes
Beam Profile Measurement Beam Cube User Guide 5.13 Major/Minor Axes Enables correct measurement of non-XY aligned laser beams. • Affects 2D Display, Profiles, Numeric Results, and 1D Fits. • Set the active axes from one location for the whole application by pressing the toolbar icon. -
Page 33: Automation
Beam Cube User Guide Beam Profile Measurement 5.14 Automation Ophir provides a sophisticated interface to allow other applications to access BeamStar measurements and to integrate them into their client applications. This interface makes use of .NET technology. After the BeamStar application is installed, the Automation Examples folder can be accessed. -
Page 34: Power Measurement
USB Interface CD manual. For power measurement using an Ophir power meter, consult the power meter manual. Starting and Ending a StarLab Application... -
Page 35: Configuring The Display For Power Readings
Beam Cube User Guide Power Measurement Configuring the Display for Power Readings Power readings can be taken with a photodiode head, or with a thermopile or pyroelectric head in power mode. Thermopile heads in power mode and photodiode heads are configured in exactly the same way. The following sections explain the display options and how to select them. - Page 36 Power Measurement Beam Cube User Guide 6.2.1 Configuring Graph Limits and Time Period To configure graph limits and time period: In the Graph Configuration Area, use the Min Power and Max Power scroll bars to configure minimum and maximum power in the Graph Limits area.
- Page 37 Beam Cube User Guide Power Measurement To select the laser wavelength: Select the laser wavelength from the Laser drop down list in the Measurement Parameters Area. Figure 22: Laser Drop Down List 6.2.4 Selecting the Range Thermopile heads cover a wide range of powers, from microwatts to 1000s of watts, depending on the type of head in use.
- Page 38 Power Measurement Beam Cube User Guide higher range. If the readings fall below 9% of the present range, the instrument reconfigures itself for the next lower range after a short delay. The delay prevents an infinite range-changing loop when readings are close to the end of the scale.
- Page 39 Beam Cube User Guide Power Measurement 6.2.6 Disabling Averaging You can disable averaging from the Average drop down list. To disable averaging: Select None from the Average drop down list in the Graph Configuration Area.
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Page 40: Specifications
22cm L x 16cm W x 14cm H Spectral Range 400 – 1100nm (calibrated for 1064nm) Beam profiler unit Camera Standard Beam Cube: SP503U 640x480 pixel camera with 9.9µm spacing Beam Cube 620: SP620U 1600x1200 pixel camera with 4.4µm spacing PC interface... - Page 41 (b) The Beam Cube will not resolve pulses of energy below 20mJ unless the pulse rate is high. If the energy deposited in 1/50 of a second exceeds 20mJ, then the unit will be able to show the pulses even though the individual energies are below 20mJ.
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Page 42: Ordering Information
Standard Beam Cube system for beam profile, SP786015 temporal pulse shape and power and single shot energy. To be used with the Ophir power meter and oscilloscope of user’s choice. Includes interchangeable -100mm lens assembly. With SP503U 9.9um pixel size Spiricon camera.
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