The Last Replacement Part you will EVER Need for your YAG Laser
First in the world IPG's Quasi-CW fiber lasers are available for requalifying existing lamp-pumped processes at IPG’s application facilities and applications labs. IPG's QCW Series also features a highly cost-effective OEM module.
Retrofit services, including engineers familiar with system integration, are available to help customers replace older production lasers with energy-efficient fiber lasers from IPG.
Features of Quasi-CW Lasers
Maximum Peak Power = 10x Average Power
Wall-plug Efficiency >30%
Outstanding Pulse Power/ Energy Stability
Pulse Duration* 0.05-50 ms
Internal Pulse Generator/ Pulse shaping
Single-mode or Multi-mode
* Minimum pulse duration is 10 microseconds upon request. Please contact your IPG representative.
Q-switched fiber lasers are capable of providing pulse energies in the mJ range, but for materials processing applications requiring multiple Joules of pulse energy at multi-kilowatt peak powers IPG has developed the unique Quasi-CW Fiber Lasers. These fiber lasers occupy the space between kW class CW fiber lasers and Q-switched pulsed lasers. They are very similar to kW class fiber lasers with one notable difference: their peak power during ON time is up to tenfold higher than their average power in pure CW mode of operation. Thus, these lasers can provide tens of joules of energy over a long pulse, from 50 microseconds to 50 milliseconds.
Another important note is that although the same peak and average power could be obtained by modulating IPG's kW-class power ytterbium lasers, the QCW lases are significantly cheaper, providing affordable high peak power in several 100 Watt to a few kW average power range.
Individual Quasi-CW Fiber laser pulses can be modulated with analog control to achieve the optimal temporal pulse shape or pulse train for any particular application:
Multi-pulse for drilling
Ramp up for pre-cleaning
Enhanced spike for high reflectivity materials
Remove porosity or shrinkage pipe in center of weld
Ramp down pulse used for reducing cracking on crack sensitive materials
The availability of true single-mode beam mode quality combined with very high pulse energy has never before been achieved in a competitively priced laser.
Flat-top beam profile is optimal for many applications. YLM modules and YLR rack-mounted units are availble with both single-mode and multi-mode feed fibers, YLS systems are available with multi-mode feed fibers starting from 50 micron core.
True single-mode beam mode quality
Flat-top beam multi-mode beam mode
Choice of delivery fibers: 50, 100, 200 or 300 micron core
no lamp replacement
10x energy efficient, > 30 % wall-plug efficiency
no free space optics, all fiber design
thermally and mechanically robust
not a fiber delivered laser - FIBER laser
choice of delivery fibers: single-mode, multi-mode or flat top
red aiming diode
OEM & Integrator
YLR 19" rack-mountable units:
compact user-friendly interface
kW class industrial rugged design
Analog/ RS-232 / Ethernet
Touchscreen front panel, RS-232, Digital I/O, Analog Control
QCW Fiber Laser Receives 2010 Prism Award for Photonics Innovation
Category of Industrial Lasers
The Quasi Continuous Wave pulsed fiber laser replaces the aging population of inefficient flash lamp-pumped solid state lasers with much smaller and longer lasting diode pumped devices. Plus, it has 30% rather than 3% wall-plug efficiency.