| Full text | |
| Author(s): |
Pita Ruiz, Julian L.
[1, 2, 3]
;
Rocha, Lucas G.
[1, 3]
;
Yang, Jun
[4]
;
Kocabas, Sukru Ekin
[4]
;
Li, Ming-Jun
[4]
;
Aldaya, Ivan
[3, 5]
;
Dainese, Paulo
[4]
;
Gabrielli, Lucas H.
[1, 3]
Total Authors: 8
|
| Affiliation: | [1] Univ Estadual Campinas, Sch Elect & Comp Engn, BR-13083852 Campinas, SP - Brazil
[2] Univ Estadual Campinas, Gleb Wataghin Phys Inst, BR-13083859 Campinas, SP - Brazil
[3] Univ Estadual Campinas, Photon Res Ctr, BR-13083859 Campinas, SP - Brazil
[4] Corning Res & Dev Corp, One Sci Dr, Corning, NY 14830 - USA
[5] State Univ Sao Paulo, Ctr Adv & Sustainable Technol, BR-13876750 Sao Joao Da Boa Vista, SP - Brazil
Total Affiliations: 5
|
| Document type: | Journal article |
| Source: | Optics Express; v. 30, n. 2, p. 2539-2546, JAN 17 2022. |
| Web of Science Citations: | 0 |
| Abstract | |
This paper demonstrates a high-efficiency vertical grating coupler for the LP01x, LP11ax, and LP11bx modes of a graded-index few-mode fiber. The coupler is composed of a non-uniform straight bidirectional grating that was inverse-designed to address the desired fiber modes, combined with two mode-selective directional couplers and two tapers. The device was fabricated by e-beam lithography with a minimum feature size of 100 nm and presented coupling efficiencies of -3.0 dB, -3.6 dB, and -3.4 dB for the LP01x, LP11ax, and LP11bx modes, respectively. The high efficiency of the proposed CMOS-compatible coupler demonstrates its potential as a key device for high-capacity networks exploiting space division multiplexing on few-mode fibers. (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement (AU) | |
| FAPESP's process: | 15/24517-8 - Photonics for next generation internet |
| Grantee: | Hugo Enrique Hernández Figueroa |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 16/19270-6 - Multimode couplers for integrated photonics |
| Grantee: | Lucas Heitzmann Gabrielli |
| Support Opportunities: | Research Grants - Young Investigators Grants |
| FAPESP's process: | 18/25339-4 - Integrated photonics devices |
| Grantee: | Newton Cesario Frateschi |
| Support Opportunities: | Research Projects - Thematic Grants |