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Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

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Multimode Mamyshev oscillator.

Henry Haig, Pavel Sidorenko, Anirban Dhar

|December 24, 2021

Summary

This summary is machine-generated.

We demonstrate spatiotemporal mode locking (STML) in a Mamyshev oscillator, observing diverse multimode states. Cavity design allows control over modal content, enabled by nonlinear interactions and spatial filtering.

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Area of Science:

Optics and Photonics
Laser Physics
Nonlinear Optics

Background:

Mode-locked lasers are crucial for generating ultrashort pulses.
Mamyshev oscillators offer unique mode-locking dynamics.
Spatiotemporal mode locking (STML) combines temporal and spatial pulse characteristics.

Purpose of the Study:

To investigate spatiotemporal mode locking (STML) in a Mamyshev oscillator.
To explore the influence of cavity design on modal content.
To elucidate the underlying mechanisms enabling STML in this system.

Main Methods:

Experimental realization of a Mamyshev oscillator.
Numerical simulations of laser dynamics.
Analysis of output beam properties and modal content.

Main Results:

Observation of various multimode, spatiotemporally coupled states.
Demonstration of controllability over modal content via cavity design.
Experimental and simulation evidence for nonlinear intermodal interactions and spatial filtering driving STML.

Conclusions:

First demonstration of STML in a Mamyshev oscillator.
STML is facilitated by nonlinear intermodal interactions, spatial filtering, and the Mamyshev mechanism.
Cavity design offers a pathway to tailor the output beam characteristics.