fficient integrated tri-modal coupler for few-mode fiber

Autor(es)

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]}

Afiliação do(s) autor(es)

^[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

• Tipo de documento: Artigo Científico
• Fonte: Optics Express; v. 30, n. 2, p. 2539-2546, JAN 17 2022.
• Citações Web of Science: 0

Resumo

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)

• Processo FAPESP: 15/24517-8 - Fotônica para internet de nova geração
• Beneficiário: Hugo Enrique Hernández Figueroa
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 16/19270-6 - Acopladores multimodo para fotônica integrada
• Beneficiário: Lucas Heitzmann Gabrielli
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores
• Processo FAPESP: 18/25339-4 - Dispositivos fotônicos integrados
• Beneficiário: Newton Cesario Frateschi
• Modalidade de apoio: Auxílio à Pesquisa - Temático