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BIBTEX RIS

Single-mode behavior of a circular grating for potential disk-shaped DFB lasers

1990; IEEE Photonics Society; Volume: 26; Issue: 3 Linguagem: Inglês

10.1109/3.52123

ISSN

1558-1713

Autores

Minoru Toda,

Tópico(s)

Advanced Fiber Laser Technologies

Resumo

The reflectivity and the resonance condition of a circular grating for a disk-shaped distributed-feedback (DFB) laser are calculated. The periodicity and the position of the grating are so chosen that all of the reflections from each refractive index step are superimposed in-phase so as to be consistent with the resonant behavior of the fundamental mode wave. The calculated wave impedance (E/H) is almost purely imaginary in the central region of the grating for the higher modes. >

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