- LaseView allows to reduce costs
- Can be used with the camera you already own
- Easy setup by just installing it on your PC
What is LaseView-LHB ？
LaseView-LHB is a laser beam profiler for large diameter and high power laser beams working on Windows systems.
Thanks to a newly-developed optical setup, it is the first product to provide measurements for both large diameter and high power laser beams. This versatile lone product offers a wide range of applications.
It works with the LaseView software, which is known for its great usability.
Equipped wih different analysis capabilities, it is a very easy-to-use beam profiler.
Figure１ LaseView-LHB (Entrance window side and connection side)
Figure2 808nm single-mode semiconductor laser’s diverging light (FWHM: 14.4mmx2.3mm)
- Measures easily the beam profile and diameter
- Can measure from small to large diameters (2μm *~ 100 mm **) (* with optional accessory / ** on custom products)
- Can measure from low to high powers (1mW/cm2~100 W/cm2)
- Includes Speckle reduction function (patterns of bright and dark spots)
- Includes the “Beam profiler with M2 platform software” LaseView
LaseView software Features:
- Allows the use of low-cost cameras
- Available the low-cost beam monitoring system
- Measures M2 beam quality
- Measures the beam Divergence Angle
- Evaluation of the beam power, beam profile between 2 points, and beam diameter changes available
- Measures the beam Pointing Stability over time
- Image figure(Beam diameter：around 15mm)
Measurement setup of a Beam of ~15mm and the corresponding software screenshot
Comparison between LaseView-LHB and conventional products
For high power
Conventional Beam profiling measurement with high power laser needed damping system because CCD camera may be easily destroyed.
LaseView-LHB can measure as much as maximum 100 W/cm2 laser beam without additional attenuation system by using a newly designed optical system.
It simplifies optical system and prevents introducing distortion on laser beam.
Left : Beam profiling with dumped system.
Right: Beam profiling with at one time with LaseView-LHB
Figure 4 (by ASUKA MEDICAL Inc）
For large diameter
Until now, Beam profiling measurement with large diameter has required measuring by dividing it in several parts by making handy movement on the conventional profiler.
It takes time and energy and also, divided measurement makes laser relative intensity unclear.
LaseView-LHB solves such problems and it becomes possible to make large beam profiling at one time (Figure3)
Left : Beam profiling by divided measurement
Right: Beam profiling at one time by LaseView-LHB
Figure 3 (by ASUKA MEDICAL Inc）
Main Analysis Functions
Ｍ2 beam quality Analysis function
It is an important parameter for focus or processing, it can be easily measured with standard methods. The procedure of the optical system setting is described below:
- The laser beam shall be focalized through a lens with f-number (focal length/beam diameter) between ~50 to ~100.
- Install a ruler or an optical rail along the beam so that the CCD camera can slide in a range of ±50mm～±150mm around the beam waist.
- click on the “Collective analysis” of the “M2 beam quality” tab.
See the “About beam profiler” tab for more information.
Divergence angle Analysis function
Beam divergence angle is an important parameter for light propagation characteristics which can be easily measured with a standard method. Its measurement’s procedure is described below:
- Measurements taken at 2 or more positions shall be saved in the same folder.
- Click the “Divergence angle” button of “Collective analysis” tab .
Fig6: Beam divergence angle measurement screen
In addition, as the measurements are made at different places, it is possible to evaluate the change in power and thus the propagation loss.
Beam pointing variation Analysis function
The Beam pointing stability varies with time and is an important parameter for Laser Beam stability which can be easily measured with a standard method. Beam pointing measurement procedure is described below.
- Use the image logging function, and save images taken at an appropriate time interval.
- Click the “Pointing” button.
- Click the “Execute analysis”.
The changes over time of X and Y coordinates of the beam centroid will be displayed in a graph.
Fig7: Beam pointing stability screen
With LaseView-LHB, the measured large diameter beam illuminates an entrance window, the light diffused from the window is recorded by a CCD camera at the rear, which allows to measure large diameters. After several experiments, by using a particular window, the direct input of high-intensity beams of more than 100 W/cm2 was made possible and we succeeded in achieving both a high resolution and a uniform sensitivity.
|Acceptance surface size||50 mm × 50 mm*|
|Optical resolution power||below 100 μm|
|Measurement power density||0.1～100 W/cm2（sensitivity is adjustable depending on exposure time）
（1 mW/cm2〜 is available by changing ND filter）
|Total irradiation power||Maximum 10 W|
|Incident angle tolerance||±15°|
|400～1100 nm （Focus adjustment already made on 532 nm or 1060 nm）|
|Effective pixel number||1280 × 960 (horizon ×vertical)|
|Pixel number of acquired images||1250 × 1250 (horizon ×vertical)|
|8 bit/12 bit|
|Frame rate||Maximum 30 fps|
|Exposure time||0.1 ms～250 ms|
|Interface||USB3.0 (miniB connector)|
|External trigger||Available（3.3〜24 V / 3.5 mA）|
|Electric power||・Camera electric power 5 V and around 250 mA（supplied by USB）
・Motor electric power 6 V and below 100 mA（supplied by attached AC adapter）
|External size||W154 mm × H82.5 mm × D130 mm（excluding stand and cable）|
|Weight||Below 2 kg（excluding stand , cable and AC adapter）|
|Software||Compliant with LaseView|
|Remark||・In case of small beam diameters, resolution may be insufficient. Recommended beam diameter is over 5mm.
・Frame rate may be lower depending on PC or USB connection performances.
・Speckle reduction function needs 10～20 image averaging procedure, which generates measurement time by 1-2 seconds
* Maximum beam diameter can reach 100 mm × 100 mm on customized devices.
Infrared wavelength region can also be measurable on customized devices.
We can also provide reduced-size custom devices. Please contact us.
Fig8: LaseView-LHB external drawings
Micro-beam measurement camera set
For beam diameters of 30 μm or less, we recommend that you use the micro-beam measurement camera set. It is an incomparable device offering “high magnification, high NA and untra-low aberration.
- Magnification: around 30 times (typical values: 30.8 times @1064 nm, 31.5 times @532 nm)
- Working wavelengths: 400-1100 nm (recommended: 600-1100 nm)
- Optical resolution: < 2 μm
- Working distance: around 1.7 mm (typical values: 1.7 mm @1064 nm, 1.6 mm @532 nm)
- Length = 176 mm
Micro-beam measurement camera set and dedicated 3-axis holder stage
In order to easily measure any micrometer-sized beam, a micrometer level positioning 3-axis (x, y, z) stage is necessary.
Fig 9: Micro-beam measurement camera set and 3-axis stage
- Micro positioning device mounting: side
- Moving guide: ball guide
- Motion / 1 rotation: 0.5 mm
- Micrometers smallest graduation: 0.01 mm
- Motion range (mm): XY axes ±6.5; Z axis ±5
- Can be installed on M6 tapped breadboard
- Beam profile measurement for large diameter
- Beam profile measurement for high power laser
- Measurement for Laser far field pattern (FFP)
- Measurement for Laser near field pattern (NFP)
- Beam profile measurement for laser processing
- Beam profile measurement for surgical laser
- Measurement and evaluation of CW (continuous wavelength) and pulse LED emission
- Measurement and evaluation of beam of semiconductor laser emission
- Measurement and evaluation of beam of optical pick-up sources
- Measurement and evaluation of NA of optical fiber
- Measurement of propagation loss, beam profile or divergence angle for artificial star and distance measurement laser devices of astronomical telescopes
- Beam monitoring system of long-distance propagating laser
Price and lead time
|Product||Model number||Catalog||User guide||Price||Lead time|
|Beam profiler for large diameter and high power laser||LaseView-LHB||US$ 14,300 (Ex-works Japan)（without Tax）||Around 1-1.5 month|
|Micro-beam measurement camera set||LaseView-LHB-camera||+ US$ 1,800（without Tax）|
|Micro-beam measurement camera set and 3-axis stage||LaseView-LHB-stage||+ US$ 1,200（without Tax）|