Modeling of optical low coherence reflectometry recorded Bragg reflectograms: evidence to a decisive role of Bragg spectral selectivity

This paper draws attention to the basic principles governing reflections in uniform Bragg reflectors (BR) when measured employing optical low coherence reflectometry (OLCR) technique. Using computations based on transfer matrix method (TMM), we first showed a strong spectral dependence of Bragg refl...

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Bibliographic Details
Published in:Journal of lightwave technology 2002-03, Vol.20 (3), p.489-493
Main Authors: Gottesman, Y., Rao, E.V.K., Sillard, H., Jacquet, J.
Format: Article
Language:English
Subjects:
Bragg reflectors
Coherence
Computation
Distortion measurement
Distributed Bragg reflectors
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Gratings
Indium phosphide
Indium phosphides
Lasers
Mathematical models
Optical elements, devices, and systems
Optical interferometry
Optical recording
Optical reflection
Optics
Physics
Probes
Reflection
Reflectometry
Research and development
Spectra
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Summary:This paper draws attention to the basic principles governing reflections in uniform Bragg reflectors (BR) when measured employing optical low coherence reflectometry (OLCR) technique. Using computations based on transfer matrix method (TMM), we first showed a strong spectral dependence of Bragg reflectograms on an OLCR probe spectrum. Later, this dependence is exploited to evaluate, for the first time, the coupling coefficient /spl kappa/ of a Bragg grating in a distributed Bragg reflector (DBR) laser on InP.
ISSN:0733-8724
1558-2213
DOI:10.1109/50.988998