High power sub-200fs pulse generation from a colliding pulse modelocked VECSEL
McInerney, John G.
Ruiz Perez, Antje
Koch, Stephan W.
Moloney, Jerome V.
AffiliationUniv Arizona, Coll Opt Sci
MetadataShow full item record
PublisherSPIE-INT SOC OPTICAL ENGINEERING
CitationAlexandre Laurain, Declan Marah, Robert Rockmore, John G. McInerney, Jorg Hader, Antje Ruiz Perez, Stephan W. Koch, Wolfgang Stolz, Jerome V. Moloney, "High power sub-200fs pulse generation from a colliding pulse modelocked VECSEL", Proc. SPIE 10087, Vertical External Cavity Surface Emitting Lasers (VECSELs) VII, 100870E (2017/02/22); doi: 10.1117/12.2252525; http://dx.doi.org/10.1117/12.2252525
Rights© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE).
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at email@example.com.
AbstractWe present a passive and robust mode-locking scheme for a Vertical External Cavity Surface Emitting Laser (VECSEL). We placed the semiconductor gain medium and the semiconductor saturable absorber mirror (SESAM) strategically in a ring cavity to provide a stable colliding pulse operation. With this cavity geometry, the two counter propagating pulses synchronize on the SESAM to saturate the absorber together. This minimizes the energy lost and creates a transient carrier grating due to the interference of the two beams. The interaction of the two counter-propagating pulses in the SESAM is shown to extend the range of the modelocking regime and to enable higher output power when compared to the conventional VECSEL cavity geometry. In this configuration, we demonstrate a pulse duration of 195fs with an average power of 225mW per output beam at a repetition rate of 2.2GHz, giving a peak power of 460W per beam. The remarkable robustness of the modelocking regime is discussed and a rigorous pulse characterization is presented.
VersionFinal published version
SponsorsAir Force Office of Scientific Research [FA9550-14-1-0062]