Intermodal Brillouin scattering in solid-core photonic crystal fibers
Abstract
We investigate intermodal forward Brillouin scattering in a solid-core photonic crystal fiber (PCF), demonstrating efficient power conversion between the HE11 and HE21 modes, with a maximum gain coefficient of 21.4 W−1 km−1. By exploring mechanical modes of different symmetries, we observe both polarization-dependent and polarization-independent intermodal Brillouin interaction. Finally, we discuss the role of squeeze film air damping and leakage mechanisms, ultimately critical to the engineering of PCF structures with enhanced interaction between high-order optical modes through flexural mechanical modes.
- Publication:
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APL Photonics
- Pub Date:
- March 2021
- DOI:
- 10.1063/5.0040580
- arXiv:
- arXiv:2012.10007
- Bibcode:
- 2021APLP....6c6108J
- Keywords:
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- Physics - Optics
- E-Print:
- 8 pages, 5 figures