Viscoelastic tuning of fibre Bragg gratings during regeneration

John Canning; Sharoui Gao; Kevin Cook; Arnaud Loubert; Matthieu Lancry

doi:10.1117/12.2058990

2 June 2014 Viscoelastic tuning of fibre Bragg gratings during regeneration

John Canning, Sharoui Gao, Kevin Cook, Arnaud Loubert, Matthieu Lancry

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 9157AJ (2014) https://doi.org/10.1117/12.2058990
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

Abstract

Regenerating at constant temperature under load allows inelastic changes in glass that can be exploited to tune the Bragg wavelength of a filter to any arbitrary spectral position. We have reported < 20nm of tuning of a 1 cm grating with no limit in sight. Further, regenerating under a temperature profile allows complex spectral shaping of the grating profile. As an example, we have reported broadband chirping by more than Δλ < 9 nm over 1 cm using this approach. High temperature viscoelastic tuning therefore offers a simple and powerful low cost way of tuning the properties of fibre Bragg gratings using a single phase mask.

Citation Download Citation

John Canning, Sharoui Gao, Kevin Cook, Arnaud Loubert, and Matthieu Lancry "Viscoelastic tuning of fibre Bragg gratings during regeneration", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 9157AJ (2 June 2014); https://doi.org/10.1117/12.2058990

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