Title :
Coherent beam combining of fiber amplifiers
Author :
Höfer, Sven ; Zellmer, H. ; Ruske, J.-P. ; Tünnermann, A.
Author_Institution :
Inst. of Appl. Phys., Friedrich-Schiller-Univ. Jena, Germany
Abstract :
In this paper, we demonstrate the coherent superposition of fiber amplifiers in a Michelson-type setup with active amplifying arms. The diffraction limited beam quality from the amplifiers is not reduced by imposing the beams and combining efficiencies exceeds 95%. The output of this basic active interferometer is coherently added to additional amplifier stages. Amplifier performance and further details on the locking technique are also presented.
Keywords :
Michelson interferometers; laser beams; laser mode locking; light coherence; light diffraction; optical fibre amplifiers; 95 percent; Michelson-type setup; amplifier performance; coherent beam combining; coherent superposition; diffraction limited beam quality; fiber amplifiers; Diffraction; Fiber lasers; Laser beams; Optical amplifiers; Optical coupling; Optical fiber amplifiers; Oscillators; Phase modulation; Power amplifiers; Ring lasers;
Conference_Titel :
Lasers and Electro-Optics Europe, 2003. CLEO/Europe. 2003 Conference on
Print_ISBN :
0-7803-7734-6
DOI :
10.1109/CLEOE.2003.1313696
