Quasi-CW Thulium Laser

IPG Photonics has expanded its quasi continuous wave (QCW) fiber laser series to longer wavelengths. TLM-50/500-QCW Thulium quasi-cw fiber laser provides up to 5 mJ per millisecond pulses at 1.94 microns. This compact energy efficient and reliable laser is designed for integration into medical devices for surgical procedures using open, laparoscopic and endoscopic inclusion, excision, resection, ablation, vaporization, coagulation and hemostasis of soft tissue in urology, urinary lithotripsy and general surgery. 



Wavelength  1940 nm Peak Power 500 W
Pulse Energy up to 5 J Pulse Duration 0.2  - 10 ms
Wavelength*, nm 1940 typ. 1880 min., 2100 max.
Emission Bandwidth FWHM, nm <10
Mode of Operation CW or Pulsed
Pulse Repetition Rate, Hz Single Pulse - 100
Maximum Average Power, W 50
Maximum Peak Power, W 500
Maximum Pulse Energy, J 5 @ 10 ms
Pulse Duration, ms 0.2-10
Power Tunability, % 10-100
Power Stability***, % ±2.5
Output Fiber Core Diameter, μm 100
Fiber NA 0.22

* Other wavelengths in the specified range are available upon request.

** Over 1 hour

Pilot Beam Wavelength, nm


Pilot Beam Power, mW


Dimensions*** (W × D × H), mm

336 × 435 × 148

Weight, kg




Supply Voltage, VDC


Power Consumption, W


*** TLR-50/500-QCW Rack-mounted units are available upon request. Please contact IPG for more details.

TLM-50-500-QCW Datasheet


Open and Endoscopic Surgery in Urology
Lithotripsy and Percutaneous Urinary Lithotripsy
General Surgery
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