Duma Optronics

M2 & BPP Systems

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M2 FocusGage – BA

  • A unique instrument for measuring laser diodes, fiber optics & high divergence beams.
  • Small & Large beam measurement at waist position, down to 10 microns.
  • Extended wavelengths range up to 2.7 microns (2 versions – silicone & InGaAs)


The M² FocusGage-BA system is a high-precision, multi-axis knife-edge scanning laser beam profiler, designed to deliver accurate beam characterization for focused and collimated beams.
Main Applications:

  1. Laser Beam Quality Measurement – Enables precise M² beam mode analysis and beam waist characterization as per ISO/CD 11146 standards.
  2. Focused Beam Profiling – Measures critical parameters such as beam waist diameter, divergence, Rayleigh range, and beam propagation ratio (M²).
  3. Collimated Beam Profiling – Ideal for collimated beams in a wide range of optical setups.
  4. Research and Development – Suitable for scientific applications, laboratory environments, and industrial beam diagnostics.

 

The system is compatible with various detector heads, including Silicon, InGaAs, and UV-enhanced detectors, offering flexibility across wavelengths ranging from UV to NIR (190–1800 nm).
This manual provides step-by-step guidance on system setup, alignment, software installation, and operation, ensuring seamless integration and optimal performance.
For additional support, please refer to the BeamAnalyzer™ User Manual or contact Duma Optronics’ customer support team.

Specifications

Parameters Value
Input aperture  9 mm (max. beam size) 
Minimum focused beam size  10 microns (Warning: Beam should be positioned within measuring range per attached drawing) 
Measuring Method  Tomographic Knife-edge beam reconstruction – see Tutorial Fundamentals of Laser Beam Measurements
Mounted on an accurate 50 mm linear stage 
Measuring Parameters  Beam Size, Power, 2D – 3D Beam Profile specific location 
Beam Propagation Parameters  BPP over up to 50 mm range, M² and depth of focus
along propagation direction, see Tutorial Fundamentals of M2 Beam Propagation 
Resolution  Better than 1 micron @ waist position 
Position Accuracy Measurement  Better than ±5 microns 
Optional  ND Filters according to application 
Spectral Range  800 – 1800 nm (IR10 version) 
Beam Power Range  Up to 1W with appropriate filter
CW Lasers only 
Number of Knife-edges 
Divergence Angle  Max. ± 35 degrees 

This is a software driver device that interfaces to any host PC computer, running under Windows Vista/XP/2000/7 (32 & 64 bit), via USB port.

 Ordering Information
The measuring head is interchangeable with M2Beam and can be operated as a full system

(Silicone Version, for InGaAs version contact factory).

M2 FG/BA-VIS (350-1100 nm)
​​M2 FG/BA-IR (800-1800 nm)

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