| Full text | |
| Author(s): |
Souza, Mario C. M. M.
[1]
;
Rezende, Guilherme F. M.
[1]
;
Barea, Luis A. M.
[1, 2]
;
von Zuben, Antonio A. G.
[1]
;
Wiederhecker, Gustavo S.
[1]
;
Frateschi, Newton C.
[1]
Total Authors: 6
|
| Affiliation: | [1] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP - Brazil
[2] Univ Fed Sao Carlos, Dept Engn Eletr, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | OPTICS LETTERS; v. 40, n. 14, p. 3332-3335, JUL 15 2015. |
| Web of Science Citations: | 8 |
| Abstract | |
Optical mode-splitting is an efficient tool to shape and fine-tune the spectral response of resonant nanophotonic devices. The active control of mode-splitting, however, is either small or accompanied by undesired resonance-shifts, often much larger than the resonance splitting. We report a control mechanism that enables reconfigurable and widely tunable mode splitting while efficiently mitigating undesired resonance shifts. This is achieved by actively controlling the excitation of counter-traveling modes in coupled resonators. The transition from a large splitting (80 GHz) to a single-notch resonance is demonstrated using low-power microheaters (35 mW). We show that the spurious resonance shift in our device is only limited by thermal crosstalk, and resonance-shift-free splitting control may be achieved. (C) 2015 Optical Society of America (AU) | |
| FAPESP's process: | 08/57857-2 - Photonics for optical communications |
| Grantee: | Hugo Luis Fragnito |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 14/04748-2 - Coupled microresonators applied to signal processing and photonics integration |
| Grantee: | Mário César Mendes Machado de Souza |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| 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 |