Suspended Z-cut lithium niobate waveguides for stimulated Brillouin scattering
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866908748805570560 |
|---|---|
| author | Haerteis, Lisa-Sophie Gao, Yan Dubey, Aditya Schmidt, Mikołaj K. Thurgood, Peter Ren, Guanghui Schroeder, Jochen Marpaung, David Mitchell, Arnan Steel, Michael J. Boes, Andreas |
| author_facet | Haerteis, Lisa-Sophie Gao, Yan Dubey, Aditya Schmidt, Mikołaj K. Thurgood, Peter Ren, Guanghui Schroeder, Jochen Marpaung, David Mitchell, Arnan Steel, Michael J. Boes, Andreas |
| contents | On-chip stimulated Brillouin scattering (SBS) has recently been demonstrated in thin-film lithium niobate (TFLN), an emerging material platform for integrated photonics offering large electro-optic and nonlinear properties. While previous work on SBS in TFLN have focused on surface SBS, in this contribution we experimentally demonstrate, for the first time, backward intra-modal SBS generation in suspended Z-cut TFLN waveguides. Our results show trapping of multiple acoustic modes in this structure, featuring a multi-peak Brillouin gain spectrum due to the excitation of higher-order acoustic modes. The findings expand the TFLN waveguide platform exploration for SBS interactions and provide a crucial step towards realizing optical processors for microwave signals or sensors integrated on TFLN. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_07333 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Suspended Z-cut lithium niobate waveguides for stimulated Brillouin scattering Haerteis, Lisa-Sophie Gao, Yan Dubey, Aditya Schmidt, Mikołaj K. Thurgood, Peter Ren, Guanghui Schroeder, Jochen Marpaung, David Mitchell, Arnan Steel, Michael J. Boes, Andreas Optics Applied Physics On-chip stimulated Brillouin scattering (SBS) has recently been demonstrated in thin-film lithium niobate (TFLN), an emerging material platform for integrated photonics offering large electro-optic and nonlinear properties. While previous work on SBS in TFLN have focused on surface SBS, in this contribution we experimentally demonstrate, for the first time, backward intra-modal SBS generation in suspended Z-cut TFLN waveguides. Our results show trapping of multiple acoustic modes in this structure, featuring a multi-peak Brillouin gain spectrum due to the excitation of higher-order acoustic modes. The findings expand the TFLN waveguide platform exploration for SBS interactions and provide a crucial step towards realizing optical processors for microwave signals or sensors integrated on TFLN. |
| title | Suspended Z-cut lithium niobate waveguides for stimulated Brillouin scattering |
| topic | Optics Applied Physics |
| url | https://arxiv.org/abs/2504.07333 |