Nanodiamond coated Bragg gratings for sensing applications

N. J. Alberto; J. A. Santos; C. A. F. Marques; V. F. S. Neto; R. N. Nogueira

doi:10.1117/12.974993

17 October 2012 Nanodiamond coated Bragg gratings for sensing applications

N. J. Alberto, J. A. Santos, C. A. F. Marques, V. F. S. Neto, R. N. Nogueira

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 842120 (2012) https://doi.org/10.1117/12.974993
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

In this paper, the coating of optical Bragg gratings with nanocrystalline diamond, obtained by hot filament chemical vapor deposition (HFCVD), is described. Due to the high temperature coating process, uniform fiber Bragg gratings (FBG) were erased during the diamond deposition. However, in the case of regenerated fiber Bragg gratings (RFBG), although attenuated, the optical signal is maintained. The results of the thermal and mechanical characterization of diamond coated RFBG (D-RFBG) suggest that they may be an important tool in the sensing field, including monitoring of high temperatures under harsh environments.

Citation Download Citation

N. J. Alberto, J. A. Santos, C. A. F. Marques, V. F. S. Neto, and R. N. Nogueira "Nanodiamond coated Bragg gratings for sensing applications", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842120 (17 October 2012); https://doi.org/10.1117/12.974993

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