Dicaire, M.-C. N., Upham, J., De Leon, I., Schulz, S. A. and Boyd, R. W. (2014) Group delay measurement of fiber Bragg grating resonances in transmission: Fourier transform interferometry versus Hilbert transform. Journal of the Optical Society of America B: Optical Physics, 31(5), p. 1006. (doi: 10.1364/JOSAB.31.001006)
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Abstract
Several methods exist to measure the group delay of a fiber Bragg grating. Here, we compare two such methods, namely the Hilbert transform (HT) of the device transmission spectrum and standard Fourier spectral interferometry. Numerical simulations demonstrate that both methods work not only for ideal, lossless devices but also for ones with realistic absorption. Experimental measurements show that the HT is more straightforward to implement and is significantly less susceptible to phase noise, which can significantly reduce the standard deviation between measurements.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Boyd, Professor Robert |
| Authors: | Dicaire, M.-C. N., Upham, J., De Leon, I., Schulz, S. A., and Boyd, R. W. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Journal of the Optical Society of America B: Optical Physics |
| Publisher: | Optical Society of America |
| ISSN: | 0740-3224 |
| ISSN (Online): | 1520-8540 |
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