Ultra-compact acousto-optic modulator of a fibre Bragg grating in a highly birefringent suspended core fibre

Ricardo E. da Silva; Egor Manuylovich; Namita Sahoo; Martin Becker; Manfred Rothhardt; Hartmut Bartelt; David J. Webb

doi:10.1117/12.2592228

18 April 2021 Ultra-compact acousto-optic modulator of a fibre Bragg grating in a highly birefringent suspended core fibre

Ricardo E. da Silva, Egor Manuylovich, Namita Sahoo, Martin Becker, Manfred Rothhardt, Hartmut Bartelt, David J. Webb

Author Affiliations +

Proceedings Volume 11773, Micro-structured and Specialty Optical Fibres VII; 117730U (2021) https://doi.org/10.1117/12.2592228
Event: SPIE Optics + Optoelectronics, 2021, Online Only

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.

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Ricardo E. da Silva, Egor Manuylovich, Namita Sahoo, Martin Becker, Manfred Rothhardt, Hartmut Bartelt, and David J. Webb "Ultra-compact acousto-optic modulator of a fibre Bragg grating in a highly birefringent suspended core fibre", Proc. SPIE 11773, Micro-structured and Specialty Optical Fibres VII, 117730U (18 April 2021); https://doi.org/10.1117/12.2592228

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