CANUNDA – AXICON: Generating a Bessel Beam by reflection

CANUNDA – AXICON: Generating a Bessel Beam by reflection

Axicon angle

0.25 to 3º


25.4 mm



Clear aperture

> 90%

Wavefront error (rms)


Damage Threshold

0.2 J/cm2 @ 515nm, 500fs

CANUNDA-AXICON has revolutionized the way in which axicons are used for micro-processing. Thanks to its reflective design, the beam properties are far superior to the classical refractive design: a beam without oscillation, much closer to the theoretical profile, is able to be generated through the very precise apex manufacturing; the beam is also free from chromatic dispersion, maintaining the pulse duration, thanks to the lack of transmission through glass.

The CANUNDA-AXICON has already been successfully used in combination with ultrashort pulse lasers for glass processing. Thanks to our catalog of standard products and online calculator, CANUNDA-AXICON has become easy to use: it is now possible to find the proper set-up for any given application.

The CANUNDA-AXICON can be used for many applications: glass drilling and cutting, ring generation for surgery, atom guiding and optical trapping, alignment and triangulation, etc.

Schematic of the CANUNDA-AXICON:


Designed to improve laser processing, the CANUNDA range provides versatile and effective laser beam shaping. CANUNDA improves the quality, precision, speed and stability of processing for all types of laser source, whether single-mode or multimode.

The CANUNDA range of fully reflective solutions ensure stable, low-loss beam shaping capable of withstanding the high power of cutting or welding lasers or the high energy levels achieved by ultrashort pulse lasers for micromachining processes.

The CANUNDA-HP beam shaping modules can be used to shape high-power continuous lasers. They can perform symmetrical (ring, or ring with a central spot) or asymmetrical shaping, such as a spot followed by a line.

The fully reflective design of the shaping module supports very high average power (16 kW, demonstrated in partnership with the Institut Maupertuis). It can be cooled in a homogeneous manner for optimal results, thus minimizing thermal focus shift.

CANUNDA-HP modules have been integrated in industrial environments with optical fiber lasers on robot arms. The shaping module can either be fitted directly to the laser connector and integrate the entire optical chain up to the machining plane, or it can be integrated into standard, off-the-shelf collimation and focusing optical instruments.