An upgrade to standard modulation phase-shift method is shown to improve accuracy through electrical scan of the optical spectrum. Experiments have allowed the capture of fast group delay ripple of a dispersion-compensating fiber Bragg grating with only a small modification to the standard setup.
CitationSantos, M. C.; De Bernardo-Rodi, S. P.; Mitre-Gutierrez, M. A. New modulation zero-shift method to characterize fast group delay ripple of dispersion-compensating fiber Bragg gratings. IEEE PHOTONICS TECHNOLOGY LETTERS, 2007, vol. 19, núm. 17, p. 1298-1300.
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