![]() The automatic exposure and gain control feature adapts the camera settings to the actual beam intensity. A measured mean value of the ambient light intensity is subtracted from the beam profile measurement so as to compensate for ambient light. The integrated power meter can be user calibrated and is perfectly suited for simultaneous power and beam shape optimization without the need for an external power meter. Two 1/4"-20 (M6) taps on the bottom of the housing allow for post mounting. Engraved labels are included on the filter wheel to indicate the ND filter pre-installed in each slot, and if filters need to be removed or replaced, the wheel can be opened using a flathead screwdriver.Įach filter housing is internally SM1 (1.035"-40) threaded for easy integration with Thorlabs' lens tube systems and mounts for other optical components such as additional attenuation filters. The automatic dark level calibration provides very stable dark currents independent of the device settings, eliminating the need to recalibrate the dark level for each user setting.Īn integrated filter wheel with 6 high-quality neutral density (ND) filters allows the profiler to be adapted for use with beam intensities from nanowatts to 1 W (see the Specs and ND Filter tabs for details). Several trigger modes allow flexible capturing of single pulses, including a TTL input for triggered single pulse detection of signals with repetition rates up to 37 kHz see the manual for more information.Įach beam profiler contains a high-quality 12-bit CMOS camera with an active sensor size of 8.45 mm x 7.07 mm, a resolution of 5.0 Megapixels, and a 27 µs minimum exposure time. These beam profilers are suited for use with either continuous wave or pulsed sources. One Possible Configuration of the Beam Software GUI Showing Beam Settings, Calculation Results, 2D Projection, and 3D Profile. Compared to scanning slit beam profilers, camera beam profilers can capture a more detailed beam profile and provide a true 2D analysis of the beam's power density distribution. Thorlabs' Camera-Based Beam Profilers allow complex mode patterns (like flat top and donut) to be identified while optimizing a laser system. ![]() Optional M² Extension Kit for Automated M² Analysis (See Below).Black Level and Ambient Light Compensation.Auto Exposure from 27 µs to 1 s and Gain Control from 0 to 12 dB. ![]() Integrated Filter Wheel with Six Neutral Density Filters.Large Sensor Area (8.45 mm x 7.07 mm) for Uniformity and Linearity.Full 2D Analysis of Continuous Wave or Pulsed Laser Beam Profiles.This is the safe upper limit of the mean pulse power for the beam profiler. Slowly increase the power until your signal reaches approximately 50% of the intensity as shown in the Profile window of the Beam software package. For use with pulsed lasers, we recommend the following procedure as a guideline for determining a safe upper limit: Set the beam profiler to the maximum integration time (i.e., set the exposure to 1 s). Damage threshold data is currently not available for our beam profilers.See Specs and ND Filters tabs for details. At 700 nm, depending on beam diameter
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