Multimode Mamyshev oscillator
Henry Haig, Pavel Sidorenko, Anirban Dhar, Nilotpal Choudhury, Ranjan Sen, Demetrios N. Christodoulides, Frank W. Wise
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.
Topics & Concepts
Multi-mode optical fiberMode (computer interface)Nonlinear systemModalCoupling (piping)OpticsPhysicsComputer scienceMaterials scienceOptical fiberQuantum mechanicsOperating systemMetallurgyPolymer chemistryAdvanced Fiber Laser TechnologiesNonlinear Photonic SystemsPhotonic Crystal and Fiber Optics