Abstract
Highly efficient and compact acousto-optic modulator of a fibre Bragg grating is reported for the first time. The device is composed of millimetre scaled components and a 1 cm grating inscribed in a four air holes birefringent suspended core fibre. The reflection of the orthogonal polarization modes is tuned by a sinusoidal electrical signal at the resonance frequency of 469 kHz. A significant modulation depth of 45% is achieved at a maximum drive voltage of 10 V. The demonstrated 4 cm long all-fibre modulator is 60% shorter compared to previous similar setups, indicating new possibilities for stable and fast switching of fibre-integrated photonic devices.
| Original language | English |
|---|---|
| Article number | 117730U |
| Journal | Proceedings of SPIE - International Society for Optical Engineering |
| Volume | 11773 |
| DOIs | |
| Publication status | Published - 18 Apr 2021 |
| Event | Micro-structured and Specialty Optical Fibres VII - Online Only, Czech Republic Duration: 19 Apr 2021 → 24 Apr 2021 |
Bibliographical note
Copyright 2021 SPIE. One print or electronic copy may be made for personal use only. Systematic reproduction, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.Funding Information:
This project has received funding from the European Union´s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 713694.
Keywords
- Acousto-optic modulator
- Birefringent suspended core fibre
- Fibre Bragg grating
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