NanoScan for High-Power Beam Applications

High-Power NanoScan

 

  • Measure focused CO2 laser beams up to 5 kilowatts
  • Ideal for measuring lasers operating with pulse width modulation (PWM) power control.
  • Q-switched lasers and other higher frequency pulsed lasers
Description
Specifications
Ordering Info
Catalog/Manual
Download Data Sheet.
Photon’s High-Power NanoScan can measure focused CO2 laser beams up to 5 kilowatts. The High-Power NanoScan is equipped with a pyroelectric detector with copper slits and drum. A cooling fan mounted on the scan head body provides additional heat management. With the new “peak connect” algorithm and the software controlled variable scan speed, the High-Power NanoScan is ideal for measuring lasers operating with pulse width modulation (PWM) power control. Measurement of Q-switched lasers and other higher frequency pulsed lasers is also possible using this feature.
What Can be Measured?
Photon’s High-Power NanoScan is designed to measure “high-power” laser beams that were previously impossible to measure with standard NanoScan products. High-Power is a fairly indistinct term that means different things in different contexts. For our purposes, “high-power” is defined as between 100W and 5000W, however the High- Power NanoScan will not be able to measure this power range for all wavelengths. High-Power laser beams are handled by using reflective materials, and the level of reflectivity, and thus its inverse, absorption, are dependent on the wavelength of the laser light.

In general the long infrared wavelengths, such as that of the carbon dioxide laser at 10.6microns, are highly reflective. These allow for the highest power measurements up to the maximum levels of several kilowatts. When measuring these lasers and power levels the principle concern is the heat buildup in the scan head. The surfaces of the measurement drum and slits are better than 98% reflective to this wavelength, and thus only 2% of the incident power will be absorbed by the scanhead and heat it up. Nonetheless, at 5000W this represents a heat load of 100W that will raise the temperature of the internal components, which may cause damage to the detector and encoder electronics. The High-Power NanoScan is designed to be used for short-term measurements at these power levels. The beam should only be incident on the scan head for a few seconds. The software is equipped with a record mode that makes it easy to make a short measurement and then review the data while the scanhead is allowed to cool down.

Measuring high-power beams can be tricky. The lasers have the potential to damage the scan head, and any reflected light can be dangerous to both the operator and the surroundings. The High-Power NanoScan can measure these beams because it uses a combination of highly reflective components with high thermal dissipation capability. It is important to manage the reflected beam so that it neither reenters the laser cavity nor sends stray beams into the surrounding area.

The High-Power NanoScan scan head has been shown to be able to handle power densities of 3.2MWcm-² at 10.6μm, the power density of a 200μm beam at 1kW. At the shorter wavelengths of the other common industrial lasers, Nd:YAG and DPSS, the upper limits are little less, due to the slightly lower reflection of the components at wavelengths around 1000nm. Visible and UV lasers can also be measured, but these will have lower limits yet.

Consult the damage thresholds charts found in the manual before placing an order or exposing any NanoScan slit profiler to a laser beam.

Software 32/64 Bit Compatibility

 NanoScan Exposure Limit Calculator

High Power NanoScan Configurations
Detector Type Power Range Wavelength Aperture Slits Scan Head Size
Pyroelectric ~1W - ~5W upper limit dependent on wavelength 190nm - > 100μm 9mm 5µm 100mm
Pyroelectric Large Aperture ~1W - ~5W upper limit dependent on wavelength 190nm - > 100μm 20mm 10µm 100mm
High Power NanoScan Operating Spaces
NanoScan Acquisition and Analysis Software
*Feature NanoScan Standard NanoScan Professional (all features in Standard plus)
Controls
Source ScanHead Select, Gain, Filter, Sampling Resolution, AutoFind, Rotation Frequency, Record Mode  
Capture Averaging, Rotation, Magnification, CW or Pulse Modes, Divergence, Gaussian Fit, Reference Position, Recompute  
Regions of Interest (ROI) Single or Multiple, Automatic or Manual, Colors  
Profiles Vertical Scale (1´, 10´, 100´), Logarithmic Scale, Z & PAN (Automatic or Manual)  
Computation: ISO 13694, ISO 11146 Dslit, (13.5%, 50% 2 User Selectable Clip Levels), D, Width ratios, Centroid Position, Peak Position, Centroid Separation, Peak Separation, Irradiance, Gaussian Fit, Ellipticity, Divergence, Total Power, Pulse Frequency, % power  
  Continuous, Rolling, Finite  
Pointing Centroid or Peak, Accumulate Mode, Beam Indicator, Graph Center, Colors  
2D/3D 2D or 3D Mode, Linear or Logarithmic Scale, Resolution, Fill Contours, Solid Surface, or Wireframe, Clip Level Colors  
Charts Chart Select, Parameter Select, Aperture Select, Update Rate, Start and Clear  
Logging File Path/Name, Delimiter, Update Rate  
Rail Setup: Com Port and Length, Connect/Disconnect, Rail Control  
Views
Profiles Displays Beam Profiles for each axis, with optional Gaussian Overlays  
Results Displays Values and Statistics for Selected results  
Pointing Displays the XY position of the Centroid or Peak for each ROI , with optional overlays and Accumulate Mode  
Charts Displays Time Charts for User-selected results  
2D/3D Displays pseudo 2D/3D Beam Profile  
M² Wizard An interactive procedure for measuring M2 by the Rayleigh Method  
File Saving
NanoScan Data Files    
Text Files    
Data Logging
Log to File    
Reports
NanoScan Report    
Automation Interface
ActiveX Automation Server    
Minimum System Requirements
PC computer running windows7 (32/64) Laptop or Desktop
Core CPU 2GHz or better
1 USB 2.0 port
At least 250MB free HDD space
1440x900 Display Resolution or greater
Add-in PCI/PCI-Express graphics card w/hardware acceleration
DVD-ROM drive
*Download the NanoScan Acquisition and Analysis Software Manual for a complete description of all Software Features

Ordering Information - High-Power NanoScan

All High-Power NanoScan Systems Include: Fan cooled scanhead for use at wavelengths from 200nm to greater than 20μm. Maximum power capacity is dependent on wavelength and spot size. Refer to operating space charts for more information.
Slits and scan drum are highly reflective and user must send reflected energy into appropriate dump. A direct back reflection may cause laser cavity to oscillate or if not properly directed may cause damage. User must handle all back-reflected energy from laser.
NanoScan Integrated software package for Windows 7 (32/64) operating system.
Measurements include: spot size, position and position difference information and laser profiles. Includes “peak connect” and software control of scan speed for measurement of pulsed and pulse width modulated (PWM) lasers. Software includes ability to capture and record bursts of data. Pro version includes ActiveX automation capability.
USB 2.0 controller replaces the PCI bus card and allows NanoScan to interface to USB 2.0 port of laptop or desktop PC. Performance of Certificate of Calibration traceable to National Institute of Standards and Testing (NIST) to better than ±3%.

 
      Item Description P/N  
     
  USB NS-HP-PYRO 9/5-STD High-Power NanoScan scanhead with 9mm Pyroelectric Detector 5μm slits for use with higher power beams. High-resolution profiler featuring pyroelectric detector, 100mm diameter scanhead with rotation mount and matched pair of 5-μm wide slits. Use to measure spots 20μm and larger (1/e2 diameter) directly. Works with CW and pulsed beams with rates greater than 2kHz. Actual minimum pulse rate is dependent on beam size and scan rate. USB. PH00399  
         
  USB NS-HP-PYRO 9/5-PRO High-Power NanoScan scanhead with 9mm Pyroelectric Detector 5μm slits for use with higher power beams. High-resolution profiler featuring pyroelectric detector, 100mm diameter scanhead with rotation mount and matched pair of 5-μm wide slits. Use to measure spots 20μm and larger (1/e2 diameter) directly. Works with CW and pulsed beams with rates greater than 2kHz. Actual minimum pulse rate is dependent on beam size and scan rate. USB. Software includes ActiveX automation feature. PH00028  
         
  USB NS-HP-PYRO 20/10-STD High-Power NanoScan scanhead with 20mm Pyroelectric Detector 10μm slits for use with higher power beams. High-resolution profiler featuring pyroelectric detector, 100mm diameter scanhead with rotation mount, 20 mm entrance aperture, and matched pair of 10-μm wide slits. Can measure spots 50 μm and larger (1/e2 diameter) directly. Works with CW and pulsed beams with rates greater than 2kHz. Actual minimum pulse rate is dependent on beam size and scan rate. USB. PH00398  
         
  USB NS-HP-PYRO 20/10-PRO High-Power NanoScan scanhead with 20mm Pyroelectric Detector 10μm slits for use with higher power beams. High-resolution profiler featuring pyroelectric detector, 100mm diameter scanhead with rotation mount, 20 mm entrance aperture, and matched pair of 10-μm wide slits. Can measure spots 50 μm and larger (1/e2 diameter) directly. Works with CW and pulsed beams with rates greater than 2kHz. Actual minimum pulse rate is dependent on beam size and scan rate. USB. Software includes ActiveX automation feature. PH00027  
         
  Options  
         
  NH-HP-NS/9/5 Head only High-Power NanoScan 9mm aperture 5μm slits PH00044  
         
  NH-HP-NS/20/10 Head only High-Power NanoScan 20mm aperture 10μm slits PH00043  
         
  Software Upgrades  
         
  NSv2 STD to NSv2 PRO Upgrade Upgrade NanoScan v2 Standard version software to the PRO version. This upgrade opens the NanoScan automation feature for those users wanting to integrate or develop their own interface using Visual Basic for Applications to embed into such applications as LabView. Return scanhead to factory. PH00417  
         
  NSv1 to NSv2 STD Upgrade For those NanoScan users with pre v2 software (approx. before July 2012) they can upgrade their hardware to v2 STD capability and can run the new software. Automation capability is not available in v2 STD. Once upgraded the legacy software will run but the automation feature will be disabled in v2 PH00418  
         
  NSv1 to NSv2 PRO Upgrade For those NanoScan users with pre v2 software (approx. before July 2012) they can upgrade their hardware to v2 PRO capability and can run the new software. Automation capability is included in v2 PRO. Once upgraded the legacy software will run including the automation capability in v2 PH00419  
         
  Legacy Software Purchase the legacy V1.47 NanoScan software with licence and operations manual to –PRO scanheads to use the older software. (return scanhead to factory) PH00420  
  Beam Profilers Beam Profilers Catalog
129 pages (6.46 MB )
  BeamGage High Power NanoScan v2 Manual
16 pages (640 KB )
  BeamGage NanoScan V2 Manual
195 pages (6.5 MB )