title: Single-frequency Bismuth-doped fiber laser with quasi-continuous self-sweeping.
abstract: Generation of regular pulses of linearly polarized radiation with periodic self-induced laser line sweeping by ~10 nm near central wavelength of ~1460 nm has been demonstrated for the first time in an all-fiber Bismuth laser without any tuning element. It has been shown that the radiation of each pulse is single-frequency, and the pulse-to-pulse frequency shift is as low as 1 MHz corresponding to one intermode interval in 100-m long laser cavity. The measured intra-pulse frequency chirp is below 1 MHz while the pulses are long (~10 μs) and overlapping. Thus the sweeping is nearly continuous in frequency and time domains.
authors.forename: Ivan A
authors.initials: IA
authors.lastname: Lobach
authors.forename: Sergey I
authors.initials: SI
authors.lastname: Kablukov
authors.forename: Mikhail A
authors.initials: MA
authors.lastname: Melkumov
authors.forename: Vladimir F
authors.initials: VF
authors.lastname: Khopin
authors.forename: Sergey A
authors.initials: SA
authors.lastname: Babin
authors.forename: Evgeny M
authors.initials: EM
authors.lastname: Dianov