Characteristics analysis of lossy periodic refractive index optical waveguides

Chunsheng Ma

doi:10.1117/1.601496

1 September 1997 Characteristics analysis of lossy periodic refractive index optical waveguides

Chunsheng Ma

Optical Engineering, Vol. 36, Issue 9, (September 1997). https://doi.org/10.1117/1.601496

By extension of the transfer-matrix technique from the real domain to the complex, complex expressions describing field distributions and eigenvalue equations are presented for both TE and TM modes of lossy periodic refractive index optical waveguides. In terms of the eigenvalue equation presented, mode propagation and loss characteristics of lossy periodic refractive index optical waveguides are analyzed. It is found that coupling interaction exists between the wells, and causes splitting of both the mode propagation constant and the mode loss coefficient; as a result, corresponding mode bands are formed. It is also found that the guided structural parameters strongly influence the coupling and the mode splitting as well as the bandwidth, so these effects are also discussed in relation to the period length, the thicknesses of the wells and the barriers, and the ratio of the well thickness to the period length.

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Chunsheng Ma "Characteristics analysis of lossy periodic refractive index optical waveguides," Optical Engineering 36(9), (1 September 1997). https://doi.org/10.1117/1.601496

Published: 1 September 1997

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KEYWORDS

Refractive index

Waveguides

Wave propagation

Cladding

Optical engineering

Birefringence

Electronics engineering

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