AI Article Synopsis

  • The study introduces a spatiotemporally mode-locked Mamyshev oscillator that shows various multimode mode-locked states influenced by spatiotemporal coupling.
  • Researchers discovered that adjusting the cavity design allows some control over the output beam's modal content.
  • The findings highlight that spatiotemporal mode locking (STML) occurs due to nonlinear interactions and spatial filtering, marking the first exploration of STML in a Mamyshev oscillator using a saturable absorber.

Article Abstract

We present a spatiotemporally mode-locked Mamyshev oscillator. A wide variety of multimode mode-locked states, with varying degrees of spatiotemporal coupling, are observed. We find that some control of the modal content of the output beam is possible through the cavity design. Comparison of simulations with experiments indicates that spatiotemporal mode locking (STML) is enabled by nonlinear intermodal interactions and spatial filtering, along with the Mamyshev mechanism. This work represents a first, to the best of our knowledge, exploration of STML in an oscillator with a Mamyshev saturable absorber.

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http://dx.doi.org/10.1364/OL.447208DOI Listing

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