Lightcomm Technology Co M2BA-Beam Quality M2 Operation Manual

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Shenzhen Lightcomm Technology Co.,LTD

M2BA -Beam Quality M² Tester Operation

Manual

)

(Version2.8

Please read this operation manual carefully before

operating the equipment

Follow all safety matters and warnings in the manual

Please keep this operation manual in a safe place

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Summary of Contents for Lightcomm Technology Co M2BA-Beam Quality M2

Page 1 Shenzhen Lightcomm Technology Co.,LTD M2BA -Beam Quality M² Tester Operation Manual (Version2.8 Please read this operation manual carefully before operating the equipment Follow all safety matters and warnings in the manual Please keep this operation manual in a safe place...
Page 2: Table Of Contents
Shenzhen Lightcomm Technology Co.,LTD Contents 1 Preface ............................1 2 Basic Information ........................2 2.1 Specification ......................... 3 2.2 List ..........................5 2.2.1 M2BA- M² Tester -Open Type ................. 5 2.2.2 M2BA-M² Tester - Closed Type ...............5 2.3 Additional Accessories ....................6 2.4 Introduction to power attenuation ................
Page 3 Shenzhen Lightcomm Technology Co.,LTD 4.2.3 Knife-edge method ..................15 4.2.4 Second-order moment definition method (also called D4σ) ......16 4.3 Measurement Principle ....................16 5 Software introduction ......................18 5.1 Introduction to Toolbar ICONS .................18 5.2 Software Setup ......................19 5.2.1 Camera Settings ....................19 5.2.2 General Settings ....................
Page 4 Shenzhen Lightcomm Technology Co.,LTD 6.3 Attenuator switching ....................41 6.4 Lens Switching ......................42 7 Maintenance and repair ......................43 7.1 Maintenance advice ....................43 7.2 Troubleshooting ......................45 7.3 Safety instructions ......................47 7.4 Cautions ........................47 7.5 Warranty ........................48 7.6 Contact Address ......................48 8 References ..........................49...
Page 5: Preface
Shenzhen Lightcomm Technology Co.,LTD 1 Preface It is recommended that the user review this manual before setting up and using the Beam Quality M² Tester. This manual will help the user to become familiar with M² measurement theory and to gain a basic understanding of beam M²...
Page 6: Basic Information
Shenzhen Lightcomm Technology Co.,LTD 2 Basic Information The M2BA -Beam Quality M² tester is based on the camera method and is ideal for analyzing cross-sectional profiles of near-Gaussian laser beams, or multimode Gaussians. The beam diameter is measured according to ISO 11146 and can be displayed by a variety of industry-standard limiting levels or by any user-set limiting level value.
Page 7: Specification
Shenzhen Lightcomm Technology Co.,LTD 2.1 Specification M2BA -Beam Quality M tester Measurement time 45s-3min Test power range ≤50W (can customize other) Test wavelength range 340~1100nm Recognizable beam 50um-10mm diameter M² measuring range 1.0 - no upper limit Applicable light source...
Page 8 Shenzhen Lightcomm Technology Co.,LTD M2BA- M² Tester - Open Type：length900、width359、height200.5 M2BA- M² Tester - Closed Type：length680、width200、height184...
Page 9: List
Shenzhen Lightcomm Technology Co.,LTD 2.2 List 2.2.1 M2BA- M² Tester -Open Type Product delivery components Number M² Teste Collimating lens Focusing lens Attenuation plate Photosensitive card Power adapter cable RS485 to USB cable Camera communication network cable 2.2.2 M2BA-M² Tester - Closed Type...
Page 10: Additional Accessories
Shenzhen Lightcomm Technology Co.,LTD 2.3 Additional Accessories To facilitate the use of the M2BA -beam quality M² tester, we have a full range of beam quality test accessories available for configuration and use, additional accessories need to be purchased as a custom order.
Page 11: Introduction To Power Attenuation
Shenzhen Lightcomm Technology Co.,LTD 2.4 Introduction to power attenuation Distortion caused by insufficient or improper attenuation can be the largest contributor to errors when measuring the beam propagation characteristics of high-power lasers, so the power needs to be controlled to be within the good reception range of the detector.
Page 12: Beam Power <3000W
Shenzhen Lightcomm Technology Co.,LTD 2.4.4 Beam power <3000W Power greater than 300w, less than 3000W beam, need to customize the use of special M2BA -high power beam attenuator. Also need to have a considerable amount of water-cooled cooling environment for systematic cooling. High-power beam attenuation system will bring a larger equipment space occupied volume.
Page 13: Connecting To A Pc
Shenzhen Lightcomm Technology Co.,LTD - Quadro FX series ≥ FX770M - Hard disk: minimum 2 GB of free disk space - Interface: High-speed USB 2.0/USB 3.0 interface; RJ45 Ethernet interface - Monitor minimum recommendation: 1920x1080 pixels (color depth ≥ 16 bits) The M2BA -Beam Quality M²...
Page 14: Installation Software
Shenzhen Lightcomm Technology Co.,LTD There are three wiring ports at the end of the tester that support quick installation: the power cable, the motion control cable, and the camera communication cable. The power supply 220V AC cable, high-speed USB cable, and Ethernet cable are used to connect the power supply and computer to ensure the normal operation of the equipment.
Page 15 Shenzhen Lightcomm Technology Co.,LTD • Install the serial cable driver by locating the folder path on the USB drive → install→setup 2，click“CDM21228_Setup”， The installation will be performed automatically，You can also refer to the PDF instruction files located in the "User Guides" folder for further guidance；...
Page 16: Launch Application
Shenzhen Lightcomm Technology Co.,LTD - To verify that the Beam Analysis Imager driver is installed correctly, open Network Connections in the Control Panel, locate the Ethernet port, and check the status. Data exchange exists, indicating successful driver installation 3.4 Launch Application - Click on the desktop "...
Page 17 Shenzhen Lightcomm Technology Co.,LTD - If pop up message "Motion controller initialization failed", which indicates that the computer is not properly connected to the motion control system, you need to check whether the motion control cable is properly connected. If pop up message "Camera initialization failed" indicates that the computer is...
Page 18: Working Principle
Shenzhen Lightcomm Technology Co.,LTD 4 Working Principle 4.1 Equipment Principle According to the different testing principles, the way of laser beam M² factor can be divided into two categories: one is the method of mechanical scanning by knife, slit, etc.. After the laser beam is cut or blocked by the scanning device, the remaining light is directly incident on the photodetector and the relevant beam information is recorded.
Page 19: 1/N Definition Method
Shenzhen Lightcomm Technology Co.,LTD 4.2.1 1/n definition method On the light intensity distribution curve, the distance between two points where the relative light intensity is 1/n of the peak light intensity is defined as the beamwidth of the beam, and generally n takes the value of e² or e, which is actually defined according to the light intensity distribution.
Page 20: Second-Order Moment Definition Method (Also Called D4Σ)
Shenzhen Lightcomm Technology Co.,LTD Schematic diagram of the knife-edge method, quoted from ISO 11146-3 4.2.4 Second-order moment definition method (also called D4σ) The beam width wx,wy in the x and y directions at z in the rectangular coordinate system, is defined by the second-order moment method as below 4.3 Measurement Principle...
Page 21 Shenzhen Lightcomm Technology Co.,LTD waist compression Samples are then collected by controlling the camera detector to move with high precision near the waist of the compressed beam waist. A total of 20~30 sets of beam sample data are collected from the far-field region - within the distance of Rayleigh - far-field region.
Page 22: Software Introduction
Shenzhen Lightcomm Technology Co.,LTD 5 Software introduction 5.1 Introduction to Toolbar ICONS Open the 2D beam profile display interface. Open the current 2D beam parameter information. Open the camera parameter setting interface. Open the beam width measurement method selection interface.
Page 23: Software Setup
Shenzhen Lightcomm Technology Co.,LTD 5.2 Software Setup 5.2.1 Camera Settings Tip: The camera parameter setting interface is the default configuration interface, no special circumstances are not recommended to change! - Resolution setting: 1600×1200, 1360×1024, 1280×1024, 1280×960, 640×480. - Exposure and gain: The software defaults to automatically adjust the settings, if you switch to manual adjustment, the beam analysis software does not carry out the exposure time and gain control.
Page 24: General Settings
Shenzhen Lightcomm Technology Co.,LTD display according to the current light path in the test system to suit their own usage habits. - Image size information: Beam analyzer cameras with different target sizes are displayed in this area and cannot be modified.
Page 25 Shenzhen Lightcomm Technology Co.,LTD The software offers the user to customize 4 sigma environments (second order moments): 1.414s, 2s ( ), 2.828s, 3s ( ). This option is valid for the D4σ D6σ second-order moment mode, and the software defaults to the D4σ environment for beamwidth calculation.
Page 26: Background Correction
Shenzhen Lightcomm Technology Co.,LTD 5.2.3 Background correction Open Setup interface, ensure that the tester in the normal test environment, do not pour the beam to be measured into the tester, click "Start", wait for the progress bar to 100%, complete the background correction.
Page 27: Sampling Parameter Setting
Shenzhen Lightcomm Technology Co.,LTD 5.2.5 Sampling parameter setting Open The setup interface allows the user to set the sampling times and the location where the sample starts and ends. - Number of calculations per position: The number of times the camera takes images at the current sampling point's position.
Page 28: Power Detection
Shenzhen Lightcomm Technology Co.,LTD 5.2.6 Power Detection M2BA -Beam Quality Analysis software, which provides monitoring of the relative power of the beam, may have a ±5% deviation and does not represent an absolutely accurate optical power measurement. - Open Imager Settings (the location of the calibration module may be not the same in some versions) and locate the Power Calibration column.
Page 29: Movement Control
Shenzhen Lightcomm Technology Co.,LTD 5.3 Movement Control Open the interface and you can see the slider control at the bottom of the interface. The motion of the beam analysis camera in the Z-direction of the beam propagation can be controlled by dragging the slider left and right. You can also enter the corresponding coordinate values in the input field and press the Enter button to control the camera detector to the planned position.
Page 30 Shenzhen Lightcomm Technology Co.,LTD Parameter description. Parameters Expressions Description Total pixel energy occupied by the current Total Energy AOI area beam Relative power of the beam in the current Current power AOI area Based on the chosen beam width Beamwidth...
Page 31: Introduction To The M² Calculation Parameters
Shenzhen Lightcomm Technology Co.,LTD 5.3.2 Introduction to the M² calculation parameters Interface for the results of M² parameter calculations. Parameter Description. Parameters Expressions Description Gaussian beam Combined beam quality in both directions M² M² factor M² factor Location of waist...
Page 32: Introduction Of Other Result Information
Shenzhen Lightcomm Technology Co.,LTD Divergence Full angle of beam divergence in front of theta angle the lens Minimum Ellipticity of the beam waist position in ellipticity front of the lens 5.3.3 Introduction of other result information - Two-dimensional beam energy distribution display.
Page 33: Operating Instructions
Shenzhen Lightcomm Technology Co.,LTD - Sampling data results show. 6 Operating Instructions 6.1 Optical path commissioning 6.1.1 Software initialization - Double-click the computer desktop software icon to open the test software, the motor will automatically reset to the center position.
Page 34 Shenzhen Lightcomm Technology Co.,LTD - Open the Setup button to enter the M2 Setup dialog box. - Select the to be tested wavelength of the product, e.g. 1064, and press Enter to ensure successful entry. Otherwise, the test cannot be started.
Page 35 Shenzhen Lightcomm Technology Co.,LTD - Place the equipment and instrument in the natural light environment, turn off the laser or cover the light emitting part of the laser to be tested, click the start button under the background denoising function in the M2 test dialog box, and wait for the initialization to be completed.
Page 36: Optical Path Collimation
Shenzhen Lightcomm Technology Co.,LTD 6.1.2 Optical path collimation - After the initialization is completed, the main interface will open the beam display window by default, and the beam will be displayed in this area in real time. - In the M2 interface, there is a numeric display area in the lower left corner for the relative position of the camera.
Page 37 Shenzhen Lightcomm Technology Co.,LTD Tips: This window shows whether the input laser power is too strong or too weak. If it is too weak, you can increase the laser power or decrease the multiplier of the attenuator; if it is too strong, you can decrease the laser power or increase the multiplier of the attenuator.
Page 38 Shenzhen Lightcomm Technology Co.,LTD (when the camera is close to the laser input). Wedge Mirror Attenuator Far-field plane mirror - After finding the laser, start to do the collimation debugging of the beam near and far field.
Page 39: Collimated Optical Path Detailed Description
Shenzhen Lightcomm Technology Co.,LTD 6.1.3 Collimated optical path detailed description 6.1.3.1 Method 1 - Since the camera is at 30mm travel (close to the laser input), adjust the adjustment bracket on the wedge mirror attenuator to center the beam on the coordinate system.
Page 40 Shenzhen Lightcomm Technology Co.,LTD throughout the guide range, the optical path collimation commissioning is completed. 6.1.3.2 Method 2 - Since the camera is at 30 mm travel (closest to the laser input), adjust the adjustment bracket on the wedge mirror attenuator to set the beam to a...
Page 41: Notes On Collimated Optical Paths
Shenzhen Lightcomm Technology Co.,LTD keyboard, move the camera to 120 mm, adjust the adjustment bracket on the far-field flat mirror to adjust the beam to a symmetrical position in the coordinate system, and then adjust the adjustment bracket on the wedge mirror attenuator to adjust the beam to the center of the coordinate system.
Page 42 Shenzhen Lightcomm Technology Co.,LTD small, the camera received power inside the device is too high, the beam dynamic analyzer will continue to be full scale (saturation), it is necessary to reduce the laser power or increase the attenuator multiplier. - If you can't find the beam during the camera's full range movement, you can...
Page 43: M² Test
Shenzhen Lightcomm Technology Co.,LTD 6.2 M² Test - After the optical path is collimated, click the button in the M2 display to start testing the M2 beam quality parameters. - After the measurement is completed, the test results are displayed on the right side of the coordinate system interface to see if the test results meet the requirements.
Page 44 Shenzhen Lightcomm Technology Co.,LTD Tip: Note that during the M2 test, if the attenuation piece is selected too small or too large, it will lead to inappropriate power received by the camera detector inside the device, and the energy progress bar in the beam dynamic...
Page 45: Attenuator Switching
Shenzhen Lightcomm Technology Co.,LTD 6.3 Attenuator switching There are two rotatable manual wheels at the input of the M2 meter, and the piece of manual wheel near the incident light port has different attenuation pieces (OD1.0~OD4.0) built in, so could select different neutral density attenuation pieces according the actual power situation.
Page 46: Lens Switching
Shenzhen Lightcomm Technology Co.,LTD 6.4 Lens Switching - The manual rotor near the end of the tester has built in with different lenses (Clear, F150, F200, F250, F300 and F350). - When select a lens, the beam analysis software needs to switch the corresponding focal length.
Page 47: Maintenance And Repair
Shenzhen Lightcomm Technology Co.,LTD the greater the choice of attenuation multiplier. 7 Maintenance and repair 7.1 Maintenance advice - When the equipment is idle, it is recommended to do the relevant lens dust protection. - Optical path attenuator, and other incident light hole when not in use for a long...
Page 48 Shenzhen Lightcomm Technology Co.,LTD - When the lenses are polluted, it is recommended to use special wiping paper or cotton swabs with pure alcohol to clean them. Fine Mirror Paper Special cleaning swabs Cleaning swabs Tip: When the test environment is poor, dust in the air can easily stain the lenses, which may damage them after laser heating.
Page 49: Troubleshooting
Shenzhen Lightcomm Technology Co.,LTD 7.2 Troubleshooting Common failures of equipment and how to deal with them item Phenomenon Troubleshooting Administrator privileges are required to install the beam analysis software on your computer. If you encounter Software installation failed any problems while installing the...
Page 50 Shenzhen Lightcomm Technology Co.,LTD Repeatedly click the reset Restart the software to avoid button, the motor moves back repeatedly clicking the command and forth and cannot return to button the original point It is possible that the lubricating oil of the screw is not enough, or the...
Page 51: Safety Instructions
Shenzhen Lightcomm Technology Co.,LTD 7.3 Safety instructions - Protect the ground contact! Improper grounding can lead to electric shock, damage to health, and even death! - Goggles must be worn during the commissioning of the optical path to prevent irreversible damage to the eyes from laser accidents.
Page 52: Warranty
Shenzhen Lightcomm Technology Co.,LTD conditions. M2BA -beam quality M² tester is not waterproof. - Before energizing the M2BA -Beam Quality M² tester, make sure that the protective conductor of the three-prong main power cable is properly connected to the socket.
Page 53: References
Shenzhen Lightcomm Technology Co.,LTD 8 References - INTERNATIONAL STANDARD ISO 11146-1:2005 - INTERNATIONAL STANDARD ISO 11146-2:2005 - INTERNATIONAL STANDARD ISO/TR 11146-3:2004 9 Appendix 9.1 Spectral Response Plot Beam analysis camera spectrogram...