Answers are grounded in this paper and cite their sources.
The inscription of cascaded long-period gratings of different periods in optical fiber permits us to obtain both narrowband and wideband filters in the same spectrum. If used as an optical transducer, it may permit us to detect with the same device-wide and small parameter changes. The transmission spectra have been simulated using a theoretical model based on LP mode coupling and have been also experimentally demonstrated
No takes yet. Share an insight, caveat, or question.
Villar et al. (2006) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: