title: Long-cavity all-fiber ring laser actively mode locked with an in-fiber bandpass acousto-optic modulator.
abstract: We demonstrate low-frequency active mode locking of an erbium-doped all-fiber ring laser. As the mode locker, we used a new in-fiber bandpass acousto-optic modulator showing 74% modulation depth, 3.7 dB power insertion losses, 4.5 nm of optical bandwidth, and 20 dB of nonresonant light suppression. The laser generates 330 ps mode-locked pulses over a 10 ns pedestal, at a 1.538 MHz frequency, with 130 mW of pump power.
authors.forename: C
authors.initials: C
authors.lastname: Cuadrado-Laborde
authors.forename: M
authors.initials: M
authors.lastname: Bello-Jiménez
authors.forename: A
authors.initials: A
authors.lastname: Díez
authors.forename: J L
authors.initials: JL
authors.lastname: Cruz
authors.forename: M V
authors.initials: MV
authors.lastname: Andrés
mesh_terms: D005336:Fiber Optic Technology / Q000295:instrumentation*; D007834:Lasers