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| Beam Cube - Beam Profiling/Power/Focus Spot Position/Temporal Pulse Shape |  |
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Setup Program for YAG FSA and Beam CubeDescription
Specifications
Ordering Info
Catalog/Manual
 Download Data Sheet. |
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| An integrated laser beam measurement/profiler system for pulsed and CW lasers. System contains an SP620 camera with variable attenuator for beam profiling. A thermopile power head for power measurement and a high speed photodiode for temporal pulse width measurement. Includes BeamGage Standard beam profiling software, and a USBI power meter w/StarLab software. An optional USB digital oscilloscope is available for temporal measurement of pulsed lasers, order p/n SPE10008. Or a standard laboratory oscilloscope can be used. | |
| Diagnostic Capabilities: Spatial Beam Profile | |
| The Beam Cube shows you the intensity profile of your beam in real time and allows you to adjust your laser resonator and beam delivery optical system for optimum beam quality on line. You can also measure the cross section at any point as shown. The illustration shows the intensity distribution of a pulsed Nd:YAG laser where the X and Y profiles are taken at the cursor lines which can be placed anywhere on the beam. This data can be saved, brought back and manipulated at any time so you can compare the present profile with a reference. The system has an exclusive optical design making it easy for you to adjust the intensity to get the optimum picture by just pushing and pulling the attenuating filter adjustment levers. The beam profile can also be shown in a three-dimensional form which can be rotated to different angles and elevations. |  |
| Temporal Pulse Shape | |
| The temporal profile of laser pulses, important in obtaining consistent process results, can now be easily monitored. Shown to the right is the pulse shape of the same pulsed Nd:YAG laser with 2ms pulses. It is being measured with a PC oscilloscope available as an accessory. You can display the pulse shape alone or together with the beam profile on your PC. Plug the Beam Cube output into an oscilloscope to observe the temporal pulse shape of your laser beam. |  |
| Average Laser Power | |
| With the Ophir USB Interface between the Beam Cube unit and your PC or laptop, you can measure the average power of your laser to an accuracy of ± 3%. |  |
| Energy per Pulse and Frequency | |
| Energy sensor inside the Beam Cube is able to measure the energy per pulse and the frequency of the laser to high accuracy. With the USB Interface you can display this on your PC or laptop screen. |  |
| Statistics | |
| The Beam Cube with USB Interface is able to record and store an unlimited number of points in your PC. The software provided has a number of ways of displaying the statistics of the data. | |
| Schematic setup of a Beam Cube system | |
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| Simplified Schematic of Beam Cube System | |
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Software 32/64 Bit Compatibility
| General | Beam Cube | |
| Max and min average power | 01W to 100W continuous and to 150W for up to 1 min | |
| Maximum average power density (a), (c) | 4KW/cm² at entrance window | |
| Max and min energy | 20mJ (b) to 100Joules | |
| Maximum energy density | pulse width | max energy density |
| and repetition rate at | 10ms | 20J/cm² |
| entrance window vs. | 2ms | 5J/cm² |
| pulse width | 0.5ms | 1.5J/cm² |
| Cooling System | Conduction cooled | |
| Dimensions | 22cm L x 16cm W x 14cm H | |
| Spectral Range | 400 - 1100nm (calibrated for 1064nm) | |
| Beam profiler unit | ||
| Camera | SP620U 1600x1200 pixel camera with 4.4μm spacing | |
| PC interface | USB2 | |
| Shutter speeds | Continuously variable 1/frame rate to 1/6,000, manual or automatic | |
| Gain control | 0dB to 27dB in ~700 steps (each step is ~0.035dB). Manual or automatic control. | |
| Frame rate at 640x480 pixel ROI | Std Beam Cube: 60Hz. Auto synch with laser Beam Cube 620: 20Hz. Auto synch with laser |
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| Software features | Automatic gain and shutter control. Peak and Centroid position tracking. 2D and 3D contour map. Sophisticated noise and background control. Best fit to gaussian or top hat profile 3D display viewable from any angle or elevation. Store and recall screens in single or video fashion. 3 different measures of beam width, of peak, 4 sigma and 90/10 knife edge. Save numerical data files of profiles. Log data with time. Full on line instructions and help. Fully flexible screen format. | |
| Minimum PC system requirements | Pentium-4 2GHz, 256 MB Memory, Operating system, Windows XP Service Pack 2 or Vista 32. | |
| Intensity adjustment | Continuously variable filters actuated from outside the unit. | |
| System optical performance | ||
| Field of view | ±6° | |
| Maximum beam size | Ø22mm at entrance for converging beam, Ø7mm for collimated beams |
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| Beam reduction or expansion | Expanded 2-3X . With no lens 1X | |
| Resolution | ~5µm | |
| Power / energy / temporal profile unit | ||
| Temporal pulse shape response time into oscilloscope | 200μs resp. time. Maximum peak power 1000W | |
| Software functions with USB Interface connected to PC or laptop | average power, statistics | |
| Data logging | Can send unlimited number of points in real time to PC via USB Interface at >1000 point/s. Windows software provided for data analysis. | |
| Notes: (a) The power density limitation applies to any surface that the beam hits. For Beam Cube, since the object plane is outside the instrument, focal spots of much higher power density can be imaged as long as the power density limit on the optical surfaces is not exceeded. Notes: (b) The Beam Cube will not resolve pulses of energy below 20mJ unless the pulse rate is high. If the energy deposited in 1/50th of a second exceeds 20mJ, then the unit will be able to show the pulses even though the individual energies are below 20mJ. Notes: (c) If the beam power or energy density on the entrance window exceeds specifications, the window can be removed and not used, assuming that the power and energy density on the first beam splitter is below the damage threshold. |
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| Item | Description | P/N | ||
| Beam Cube 620 | BeamCube system for beam profiling and power and energy. Optional PC oscilloscope for measuring pulse change for pulsed lasers. Comes with 100mm lens assembly. Uses SP620 beam profiling camera. | SP90323 | ||
| -50mm lens assembly | Optional -50mm lens assembly for Beam Cube | SPZ08255 | ||
| Optional PC oscilloscope | 1MHz virtual oscilloscope for Beam Cube or BA500 to turn your PC into an oscilloscope displaying the temporal pulse shape. Uses PC or laptop USB port | SPE10008 | ||
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Beam Profilers Catalog 107 pages (8.12 MB ) |
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Beam Cube user manual 42 pages (941 KB ) |
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Back to All Laser Beam Profilers