ELFT HÍRADÓ

[<vera.horvath AT eli-alps.hu>]

Meghívó az ELI-ALPS szemináriumára

Időpont: 2014. november 28., 9 óra
Helyszín: Szeged, Tisza Lajos krt. 85-87.

Előadó: Drozdy András
Cím: Fully fiber integrated all-normal dispersion ring oscillator


Absztrakt: Passively mode-locked fiber oscillators are widely used sources
where ultrashort pulses are required like in applications such as
micromachining, nonlinear microscopy, terahertz optics. Although some setups
are reported where the laser cavity contains only polarization maintaining
(PM) components to improve environmental stability, non-PM setups are still
popular as the required parts are less expensive and the achievable pulse
duration can be shorter. For self starting and for stable operation all of the
non-PM setups need to include polarization controllers otherwise the setups
won't start, or can run in unwanted operation regimes such as CW, noise-like
or Q-switched. Although in-line polarization controllers are commercially
available, not many setups are reported where these components are used for
stabilization
At FETI (Furukawa Electric Technology Institute) such a fully fiber integrated
all-normal dispersion Yb based fiber oscillator has been built. This
presentation is about the oscillator scheme and the experimental
characterization of the operating regimes of such a fiber laser oscillator. An
attempt to stabilize the operation of the system with the use of an active
feedback system is also discussed.

Minden érdeklődőt szívesen látunk!