Optical Hilbert transform using fiber Bragg gratings

Jing Ge; Chinhua Wang; Xiaojun Zhu

doi:10.1117/12.870403

2 December 2010 Optical Hilbert transform using fiber Bragg gratings

Jing Ge, Chinhua Wang, Xiaojun Zhu

Proceedings Volume 7851, Information Optics and Optical Data Storage; 785117 (2010) https://doi.org/10.1117/12.870403
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

In this paper, we demonstrate that a simple and practical phase-shifted fiber Bragg grating (PSFBG) operated in reflection can provide the required spectral response for implementing an all-optical Hilbert transformer (HT), including both integer and fractional orders. The PSFBG consists of two concatenated identical uniform FBGs with a phase shift between them. It can be proved that the phase shift of the FBG and the apodizing profile of the refractive index modulation determine the order of the transform. The device shows a good accuracy in calculating the Hilbert transform of the complex field of an arbitrary input optical waveforms when compared with the theoretical results.

Citation Download Citation

Jing Ge, Chinhua Wang, and Xiaojun Zhu "Optical Hilbert transform using fiber Bragg gratings", Proc. SPIE 7851, Information Optics and Optical Data Storage, 785117 (2 December 2010); https://doi.org/10.1117/12.870403

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