Open Access07 MW output power from a two-arm coherently combined Q-switched photonic crystal fiber laser
Author(s) -
Boris Rosenstein,
Avry Shirakov,
Daniel Belker,
Amiel A. Ishaaya
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.006416
Subject(s) - optics , materials science , fiber laser , photonic crystal fiber , laser beam quality , laser , beam (structure) , q switching , power (physics) , pulse width modulation , photonic crystal , pulse duration , optoelectronics , optical fiber , laser beams , physics , quantum mechanics
We demonstrate a high peak power, Q-switched pulsed, intracavity coherently combined fiber laser system. The system is based on two Yb-doped, rod-type, photonic crystal fibers which are passively phase-locked and combined into the single output beam in a power oscillator configuration. Experimental evidence indicate that this oscillator system provides record high peak power of ∼ 0.7 MW with pulse duration of ∼ 10 ns at 1 kHz repetition rate. The measured beam quality shows near-diffraction-limited operation of the coherently combined system.