Convective Nozaki-Bekki holes in a long cavity OCT laser
Loading...
Files
Published version
Date
2019-05-27
Authors
Slepneva, Svetlana
O'Shaughnessy, Ben
Vladimirov, Andrei G.
Rica, Sergio
Viktorov, Evgeny A.
Huyet, Guillaume
Journal Title
Journal ISSN
Volume Title
Publisher
Optical Society of America
Published Version
Abstract
We show, both experimentally and theoretically, that the loss of coherence of a long cavity optical coherence tomography (OCT) laser can be described as a transition from laminar to turbulent flows. We demonstrate that in this strongly dissipative system, the transition happens either via an absolute or a convective instability depending on the laser parameters. In the latter case, the transition occurs via formation of localised structures in the laminar regime, which trigger the formation of growing and drifting puffs of turbulence. Experimentally, we demonstrate that these turbulent bursts are seeded by appearance of Nozaki-Bekki holes, characterised by the zero field amplitude and π phase jumps. Our experimental results are supported with numerical simulations based on the delay differential equations model.
Description
Keywords
Optical coherence tomography (OCT) , Nozaki-Bekki
Citation
Slepneva, S., O’Shaughnessy, B., Vladimirov, A.G., Rica, S., Viktorov, E.A. and Huyet, G., 2019. Convective Nozaki-Bekki holes in a long cavity OCT laser. Optics express, 27(11), (10pp). DOI:10.1364/OE.27.016395