IPG Photonics

About: IPG Photonics is a based out in . It is known for research contribution in the topics: Laser & Fiber laser. The organization has 903 authors who have published 1241 publications receiving 63339 citations.

Pulsed fiber laser with 30W output power at 532nm

Abstract: We have developed innovative high power polarized 1064nm pulsed fiber laser for efficient nonlinear frequency conversion and by frequency doubling its output generated 30W of average power with 68% conversion efficiency at 532nm. This new 1064nm pulsed fiber laser operates at 1.8MHz repetition rate with 1.3ns pulse duration and close to bandwidth-limited spectral linewidth. The developed laser delivers 46W average power at 1064nm in the linearly polarized output beam with a polarization extinction ratio 20dB. This laser has a truly solid-state design required for deployment into the industrial environment and can be used for nonlinear frequency conversion to generate high power emission in the visible and UV parts of optical spectrum as well as for other applications. The overall 16% efficiency demonstrated in generating 532nm is believed to be the highest wall plug efficiency achieved by any solid-state or fiber lasers with visible output. We expect that over 20% total efficiency for the fiber laser with tens of watts output in the green spectral range will be available.

High Power Kerr-Lens Mode-Locked Femtosecond mid-IR Laser with Efficient Second Harmonic Generation in Polycrystalline Cr2+:ZnS and Cr2+:ZnSe

Abstract: We report femtosecond polycrystalline Cr2+:ZnS/ZnSe lasers at 80 MHz rep-rate, with pulse duration up to 44 fs, output power reaching 1.7 W and 0.25 W at 2.3 µm fundamental and second harmonic (SHG) wavelengths respectively.

250 W, single-mode, CW, linearly-polarized fibre source in Yb wavelength range

Abstract: 250 W single-mode CW generation is demonstrated around 1076 nm in Yb-doped fibre in linear-polarization format with extinction ratio >23 dB and M2 < 1.04. Stimulated Raman scattering is found to be the major effect limiting the output power

System and method for controlling nonlinearities in laser units

Abstract: An optical system includes a launching component radiating a beam of light at a fixed power, a specialty component, which receives the beam and is configured with a transverse mode field diameter different from that one of the launching component, and a focusing component substantially losslessly coupled to the launching and receiving components. The focusing component is configured so that the effective area of mode at the input of the receiving component determines the intensity of light inducing at least one nonlinear effect at the desired threshold.