What is LBP-B Series ? Large Beam Profiler Models for 25 mm to 800 mm Apertures

The LBP-B series is our flagship large beam profiler family, engineered to measure wide beam profiles with high accuracy. Covering apertures from 25 mm up to 800 mm, these instruments are ideal for applications in large lasers, LiDAR scanning systems, and wide-field illumination.
It works with the LaseView software, which is known for its great usability.
Equipped with different analysis capabilities, it is a very easy-to-use Laser Beam Profiler.

Fig: 808nm single-mode semiconductor laser’s diverging light
(FWHM: 14.4mmx2.3mm)

Laser Beam Profiler “LBP-B Series” Features

As a large beam profiler, LBP-B Series handles beam diameters from small to wide apertures (e.g. up to 200 mm or beyond in extended versions).
Each large beam profiler in the LBP-B line is designed with modular optics and calibration support to maintain measurement fidelity even at large apertures.

  • Measures easily the beam profile and diameter
  • Can measure from small to large diameters (1mm – 200mm)
  • Can measure high powers (0.1W/cm2 – 100 W/cm2)
  • Includes speckle reduction function (patterns of bright and dark spots)

LaseView software Features

For software compatible with large beam profiler systems, visit our LaseView software page.

  • 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

Measuring a beam with a diameter of about 15 mm and the software screen

Measuring multi-point beam and software screen

Laser Beam Profiler “LBP-B series” lineup

Our large beam profiler lineup includes: LBP-B800VIS-WA-U, LBP-B200VIS-U, LBP-B200WB-G, and other models.

Light-receiving surface: 800 mm square / 200 mm square

Light-receiving surface: 100 mm square

Light-receiving surface: 50 mm square / 25 mm square

Comparison between LBP-B and conventional products

Until now, conventional beam profilers required dividing the aperture into segments; however, this large beam profiler (LBP-B Series) enables full-aperture measurement in a single pass, eliminating stitching errors and measurement complexity.

Below is a comparison of key features across our large beam profiler models.

For high power

Left : Laser Beam Profiling with dumped system.
Right: Laser Beam Profiling with at one time with LBP-B.
Fig: (by ASUKA MEDICAL Inc)

Conventional Laser Beam Profiling measurement with high power laser needed damping system because CCD camera may be easily destroyed.
LBP-B 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.

For large diameter

Left : Laser Beam Profiling by divided measurement.
Right: Laser Beam Profiling at one time by LBP-B.
Fig: (by ASUKA MEDICAL Inc)

Until now, Laser Beam Profiling measurement with large diameter has required measuring by dividing it in several parts by making manual movement on the conventional profiler. It takes time and energy and also, divided measurement makes laser relative intensity unclear. LBP-B solves such problems and it becomes possible to make large Laser Beam Profiling at one time.

Scanning laser measurement


Laser analysis of LiDAR using multiple LBPs.

In LiDAR scanning systems, the emitted beam often spans a wide aperture due to scanning optics. Employing a large beam profiler allows full cross-section measurement, enabling accurate divergence and beam uniformity analysis across the entire aperture.

Because the aperture is wide, laser scanning light can be measured with a laser scanning unit without moving the Laser Beam Profiler. Not only the beam profile but also the position of the laser beam can be accurately identified, making it ideal for performance evaluation.

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:

Fig: Beam divergence angle measurement screen

  1. Measurements taken at 2 or more positions shall be saved in the same folder.
  2. Click the “Divergence angle” button of “Collective analysis” tab.

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.

Fig: Beam pointing stability screen

  1. Use the image logging function, and save images taken at an appropriate time interval.
  2. Click the “Pointing” button.
  3. Click the “Execute analysis”.

The changes over time of X and Y coordinates of the beam centroid will be displayed in a graph.

Multi-point analysis function in LaseView


LaseView's multi-point analysis function (Japanese)
Simultaneously analyze multiple beam spots with one camera. (See video)

Case1:Analysis usage example with multiple “LBP-B”

Fig: 90 degrees in the circumferential direction

Case2:Analysis usage example with multiple “LBP-B”

Fig: For the quarter in the circumferential direction, put 4 pieces together

Case3:Analysis usage example with multiple “LBP-B”

Fig: Stack four vertically

Case4:Analysis usage example with multiple “LBP-B”

Fig: Arrange in 2 rows and 2 rows

Laser Beam Profiler “LBP-B Series” Application

In typical scenarios—such as scanning mirrors, projector optics, or outdoor beacons—a large beam profiler is often required to fully capture the beam cross-section without vignetting.

  • 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
  • Lensometer
  • Beam monitoring system of long-distance propagating laser
  • Beam profile measurement of laser scanning unit
  • Scan laser position measurement
  • For confirmation of Lidar laser
  • Lidar rating
  • RGB laser source position and beam profile measurement
  • For confirmation of laser projector

Video

Typical use cases for LHB

Sales results

  • Tokyo Institute of Technology
  • Saga University
  • Japan Coast Guard(JCG)
  • Japan Aerospace Exploration Agency(JAXA)
  • National Institutes for Quantum and Radiological Science and Technology(QST)
  • Japan Atomic Energy Agency(JAEA)
  • More than 10 domestic private companies
  • More than 2 overseas private companies