title: Kilowatt-level stimulated-Brillouin-scattering-threshold monolithic transform-limited 100 ns pulsed fiber laser at 1530 nm.
abstract: We demonstrate a high-stimulated-Brillouin-scattering-threshold monolithic pulsed fiber laser in a master oscillator power amplifier configuration that can operate over the C band. In the power amplifier stage, we used a newly developed single-mode, polarization maintaining, and highly Er/Yb codoped phosphate fiber with a core diameter of 25 microm. A single-frequency actively Q-switched fiber laser was used to generate pulses in the hundreds of nanoseconds at 1530 nm. We have achieved peak power of 1.2 kW for 105 ns pulses at a repetition rate of 8 kHz, corresponding to a pulse energy of 0.126 mJ, with transform-limited linewidth and diffraction-limited beam quality.
authors.affiliation: NP Photonics, Incorporated, 9030 South Rita Road, Tucson, Arizona 85747, USA. wshi@npphotonics.com
authors.forename: Wei
authors.initials: W
authors.lastname: Shi
authors.forename: Eliot B
authors.initials: EB
authors.lastname: Petersen
authors.forename: Zhidong
authors.initials: Z
authors.lastname: Yao
authors.forename: Dan T
authors.initials: DT
authors.lastname: Nguyen
authors.forename: Jie
authors.initials: J
authors.lastname: Zong
authors.forename: Mark A
authors.initials: MA
authors.lastname: Stephen
authors.forename: Arturo
authors.initials: A
authors.lastname: Chavez-Pirson
authors.forename: N
authors.initials: N
authors.lastname: Peyghambarian