title: 2 µm femtosecond fiber laser at low repetition rate and high pulse energy.
abstract: In the paper, a 2 µm high energy fs fiber laser is presented based on Tm doped fiber at a low repetition rate. The seed laser was designed to generate pulse train at 2 µm at a pulse repetition rate of 2.5 MHz. The low repetition rate seed oscillator eliminated extra devices such as AO pulse picker. Two-stage fiber amplifier was used to boost pulse energy to 0.65 µJ with chirped pulse amplification.
authors.affiliation: PolarOnyx, Inc., 2526 Qume Drive, Suite 17 & 18, San Jose, California 95131, USA.
authors.forename: Lih-Mei
authors.initials: LM
authors.lastname: Yang
authors.forename: Peng
authors.initials: P
authors.lastname: Wan
authors.forename: Vladimir
authors.initials: V
authors.lastname: Protopopov
authors.forename: Jian
authors.initials: J
authors.lastname: Liu
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D007834:Lasers