Laser MicroJet

The Laser MicroJet® Technology


A Simple Principle

The Laser MicroJet (LMJ) is a hybrid method of machining, which combines a laser with a "hair-thin" water jet that precisely guides the laser beam by means of total internal reflection in a manner similar to conventional optical fibers. The water jet continually cools the cutting zone and efficiently removes debris.

As a “cold, clean and controlled laser”, Synova's LMJ technology resolves the significant problems associated with dry lasers such as thermal damage, contamination, deformation, debris deposition, oxidation, micro-cracks and taper.


2017 LMJ Principe EN details2 WEB

Comparison of Conventional and MicroJet Laser Beams


The conventional focused laser beam has a limited working distance of just a few millimetres to even fractions of a millimetre due to beam divergence. This not only makes precise focusing and distance control necessary, it also limits the ratio of kerf width to depth. 


The LMJ technology employs a laser beam that is completely reflected at the air-water interface.  The beam can be guided over a distance of up to 10 cm, enabling parallel high aspect ratio kerfs. No focusing or distance control is required.


 2017 laser comparatif EN WEB


Technical Parameters

  • Diode pumped solid state pulsed Nd:YAG lasers with pulse durations in the micro- or nano-second range, operating at 1064 nm or 532 nm
  • Average laser power ranges from 20 W to 400 W


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Typical Applications