Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Self-Sustained Laser Pulsation in Active Optomechanical Devices

Full text
Author(s):
Princepe, Debora [1] ; Wiederhecker, Gustavo S. [1] ; Favero, Ivan [2] ; Frateschi, Newton C. [1]
Total Authors: 4
Affiliation:
[1] Univ Estadual Campinas, Gleb Wataghin Phys Inst, Appl Phys Dept, BR-13083859 Campinas, SP - Brazil
[2] Univ Paris Diderot, Univ Sorbonne Paris Cite, CNRS UMR 7162, Mat & Phenomenes Quant, F-75013 Paris - France
Total Affiliations: 2
Document type: Journal article
Source: IEEE Photonics Journal; v. 10, n. 3 JUN 2018.
Web of Science Citations: 1
Abstract

We developed a model for an active optomechanical cavity embedding a semiconductor optical gain medium in the presence of dispersive and dissipative optomechanical couplings. Radiation pressure drives the mechanical oscillation and the back-action occurs due to the mechanical modulation of the cavity loss rate. Our numerical analysis utilizing this model shows that, even in a wideband gain material, such mechanism couples the mechanical vibration with the laser relaxation oscillation, enabling an effect of self-pulsed laser emission. In order to investigate this effect, we propose a bullseye-shaped device with high confinement of both the optical and the mechanical modes at the edge of a disk combined with a dissipative structure in its vicinity. The dispersive interaction is promoted by the strong photoelastic effect while the dissipative mechanism is governed by the boundary motion mechanism, enhanced by near-field interaction with the absorptive structure. This hybrid optomechanical device is shown to lead sufficient coupling for the experimental demonstration of the self-pulsed emission. (AU)

FAPESP's process: 08/57857-2 - Photonics for optical communications
Grantee:Hugo Luis Fragnito
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 12/17765-7 - Nanophotonics in Group IV and III-V semiconductors
Grantee:Gustavo Silva Wiederhecker
Support Opportunities: Research Grants - Young Investigators Grants
FAPESP's process: 11/18945-6 - Active cavities optomechanics
Grantee:Débora Princepe
Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
FAPESP's process: 14/25453-0 - Optical gain medium incorporation in semiconductor optomechanical cavities
Grantee:Débora Princepe
Support Opportunities: Scholarships abroad - Research Internship - Doctorate (Direct)