title: 190-fs passively mode-locked thulium fiber laser with a low threshold.
abstract: We report a self-starting passively mode-locked thulium-doped silica fiber laser capable of 190-fs pulses. This practical, compact package is driven by a single 50-mW passively cooled diode laser, has a launched pumppower threshold of 18 mW for mode locking, and produces a 50-MHz train of mode-locked 20-pJ pulses at a wavelength near 1.9 microm.
authors.forename: R C
authors.initials: RC
authors.lastname: Sharp
authors.forename: D E
authors.initials: DE
authors.lastname: Spock
authors.forename: N
authors.initials: N
authors.lastname: Pan
authors.forename: J
authors.initials: J
authors.lastname: Elliot