Fiber Lasers

Products and Services Fiber Lasers

High Power cw-Lasers with Fundamental Mode Beam Quality

  • Free space resonators
  • Fiber-Bragg gratings
  • All-fiber lasers
  • Polarized lasers
  • Fiber laser resonators and amplifiers
  • Design and simulation

Pulsed Fiber Lasers and Amplifiers

  • Fiber amplifiers for pulsed laser diodes
  • Single- and multi-stage amplifiers
  • Gain-switched fiber lasers
  • PD from ps to µs
  • PRF from kHz to MHz

Efficient, High Brilliant Pumping Technology

  • Concentrated and allocated pumping
  • Multimode fused combiners
  • Single emitters, multi-single emitters, multi emitters

Fiber Preparation and Assembly, Fiber Laser Components

  • Cleaving, splicing, recoating
  • Fiber tapers
  • Mode strippers
  • Isolators
  • Detailed simulation 3D laser structuring for preforms and components


Fitzau, O.:
Polarized fiber lasers and amplifiers
Springer Series in Optical Sciences. Vol. 189, 251-263 (2015)

Mingareev, I., Gehlich, N., Bonhoff, T., Abdulfattah, A., Sincore, A. M., Kadwani, P., Shah, L., Richardson, M.:
Principles and applications of trans-wafer processing using a 2-µm thulium fiber laser
Int. J. Adv. Manuf. Technol. (Online first) (12 S.) (2015)

Becker, M., Werner, M., Fitzau, O., Esser, D., Kobelke, J.: Lorenz, A., Schwuchow, A., Rothhardt, M., Schuster, K., Hoffmann, D., Bartelt, H.:
Laser-drilled free-form silica fiber preforms for microstructured optical fibers
Opt. Fiber Technol. 19 (5), 482-485 (2013)

Becker, M., Werner, M., Fitzau, O., Esser, D., Kobelke, J., Schuster, K., Lorenz, A., Schwuchow, A., Rothhardt, M., Hoffmann, D., Bartelt, H.:
Laser processed preforms for microstructured optical fibers
Proc. SPIE 8785, 8785C9 (8 S.) (2013)

Katzy, V., Giesberts, M., Fitzau, O., Hoffmann, D.,:
Single mode all-fiber pulse-pumped Raman amplifier for picosecond pulses
Advanced Solid-State Photonics (ASSP), San Diego, California, Jan. 29th - Feb. 1st, 3 S., 2012

O. Fitzau, J. Geiger, H.-D. Hoffmann
Experimental and theoretical studies on kW class polarized fiber lasers for cw operation
Proc. SPIE
7195, 719509 (9 S.), 2009

M. Giesberts, J. Geiger, M. Traub, H.-D. Hoffmann
Novel design of a gain-switched diode-pumped fiber laser
Proc. SPIE
7195, 71952P (9 S.), 2009

J. Geiger, O. Fitzau, B. Zintzen, D. Hoffmann
Single-mode, highly polarized Y1456b-doped fiber laser with 850 W output power
ASSP 2008, Nara, Japan, Jan 27-30
3 S., 2008

B. Zintzen, A. Emmerich, J. Geiger, D. Hoffmann, P. Loosen
Effective cooling for high-power fiber lasers
Proc. of the 4th Int. WLT-Conf. on Lasers in Manufacturing , Munich, June 2007
5 S., 2007

B. Zintzen, T. Langer, J. Geiger, D. Hoffmann, P. Loosen
Heat transport in solid and air-clad fibers for high-power fiber lasers
Opt. Expr.
15, 16787-16793, 2007