Analysis of distributed-feedback lasers with fractionally organized gratings

Haroldo T. Hattori; Vitor M. Schneider; Carmem Lúcia Barbosa

doi:10.1364/AO.46.001283

Analysis of distributed-feedback lasers with fractionally organized gratings

Haroldo T. Hattori^*, Vitor M. Schneider, Carmem Lúcia Barbosa

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

We analyze the performance of distributed-feedback lasers with special grating structures. These grating structures consist of subgratings with different lengths (that are integer multiples of a reference length) and/or different phase shifts (that are also integer multiples of a reference phase shift). These grating structures can provide transmission peaks with high quality factors, which may be useful for distributed-feedback lasers. To assess the usefulness of these devices, threshold and steady-state analysis are performed for a few selected examples. A given design example is shown to provide a low threshold without major variations in photon density along the device.

Original language	English
Pages (from-to)	1283-1289
Number of pages	7
Journal	Applied Optics
Volume	46
Issue number	8
DOIs	https://doi.org/10.1364/AO.46.001283
Publication status	Published - 10 Mar 2007

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AB - We analyze the performance of distributed-feedback lasers with special grating structures. These grating structures consist of subgratings with different lengths (that are integer multiples of a reference length) and/or different phase shifts (that are also integer multiples of a reference phase shift). These grating structures can provide transmission peaks with high quality factors, which may be useful for distributed-feedback lasers. To assess the usefulness of these devices, threshold and steady-state analysis are performed for a few selected examples. A given design example is shown to provide a low threshold without major variations in photon density along the device.

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Analysis of distributed-feedback lasers with fractionally organized gratings

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