Laser Beam Diagnostics


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Click on the part number below to download a .zip file that contains technical drawings for the following file formats: .pdf .step .dxf .sldprt

bwa-mon-25-dw-1w.pdf »

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bwa-mon-50dw-r-1w-700-1100-r3.pdf »

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For additional assistance, contact a Haas Laser Tech Engineer (973) 598-1150


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Laser Beam Waist Analyzer System (BA-MON)

Beam Waist Analyzer Monitor (BWA-MON)

The Beam Waist Analyzer Monitor (BWA-MON) and software enables true “real-time” laser beam measurement, analysis and monitoring of low to very high power CW and pulsed lasers. The system design is based on the international standards ISO 11146 and ISO 13694 which relate to lasers and laser related equipment and laser beam spatial metrics.

Watch inventor Michael J. Scaggs of Haas Laser Technologies give a brief overview of the Beam Waist Analyzer Monitor.

In every laser application, the laser beam profile provides valuable information for the most efficient use of the laser. By monitoring the laser beam's spatial profile, circularity, centroid, astigmatism and M-squared values, you have early warning of any problems with the laser and entire beam delivery optical system. This relates to increased quality, process reliability, and reduced scrap. In addition, as the focal position can be monitored in real time, a feedback loop can be utilized to compensate for thermal lensing in systems susceptible to this phenomenon.

The BWA-MON is a patented instrument (USPTO 8,237,922; 8,427,633; 8,619.247; 8,711,343; 8,848,177; 8,848,178; 8,848,179) that measures the focused beam waist of a laser beam without moving parts when used in conjunction with the Haas LTI BWA-CAM. Prior to the advent of the BWA-CAM, all other beam waist analyzer devices use some sort of moving or spinning components which make real time measurement of a laser's M-squared impractical for on-line or real time applications. The BWA-MON is a modular focus head design that can be configured for most applications and laser wavelengths. The design contains no “moving components” and provides instantaneous measurement and analysis of the laser beam and its optical elements.  The BWA-MON offers for the first time the ability to provide six sigma processing with a laser as all the measured beam metrics can travel with any part being manufactured.

The BWA-MON is a laser focusing head utilizing more than thirty years of beam delivery expertise at Haas Laser Technologies, Inc. The monitoring of the system occurs while the system is processing material; whether it is cutting, drilling, welding, marking or any type of laser process.


Beam Waist Analyzer Monitor (BWA-MON) Features

Beam Waist Analyzer Monitor (BWA-MON) Specifications


Beam Waist Analyzer System (BWA-MON) Part Numbering Anatomy

BWA-MON dash Part # dash Part # dash Part # dash Part #
    arrow   arrow   arrow   arrow
25SW : 25mm C.A. High Power (< 1000 watts average power) (Welding application only)
25DW : 25mm C.A. High Power (< 1000 watts average power)
50SW   50mm C.A. High Power (> 1000 watts average power) (Welding application only)
50DW   50mm C.A. High Power (> 1000 watts average power)
R : Reflected Beam
B : Back-Reflected Beam*
1A : Single camera configuration BA-CAM
1W : Single camera configuration BWA-CAM
2C : Dual camera configuration: one BA-CAM and one BWA-CAM
XXXX : desired wavelength/Range for UV NIR & SWIR in nanometers
XX.X : desired wavelength in microns for FLIR.

* BWA-CAM is required for this configuration option.


Additional options available upon request

We would be happy to discuss a custom designed solution that's right for any project, large or small. For additional information, contact a Haas Laser Technology sales representative today. (973) 598-1150


** Specifications subject to change without notice. Consult a Haas Laser Tech engineer for the latest specification changes or any additional assistance. **


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