title: 0.7 MW output power from a two-arm coherently combined Q-switched photonic crystal fiber laser.
abstract: 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.
authors.forename: Boris
authors.initials: B
authors.lastname: Rosenstein
authors.forename: Avry
authors.initials: A
authors.lastname: Shirakov
authors.forename: Daniel
authors.initials: D
authors.lastname: Belker
authors.forename: Amiel A
authors.initials: AA
authors.lastname: Ishaaya