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physics.optics2023
Exceptional point proximity-driven mode-locking in coupled microresonators
Riku Imamura, Shun Fujii, Ayata Nakashima +1
We show theoretically and numerically that mode-locking is feasible with a coupled-cavity system with gain and loss, notably, without any natural saturable absorber. We highlight t…
physics.optics2021
Design of a passively mode-locking whispering gallery mode microaser
Tomoki S. L. Prugger Suzuki, Ayata Nakashima, Keigo Nagashima +6
Ultrahigh repetition rate lasers will become vital light sources for many future technologies; however, their realization is challenging because the cavity size must be minimized.…