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- W2071212145 abstract "It is shown that small and gradual variations in the effective refractive-index or the grating period as little as 10-4 along the laser axis can have significant effects on the lasing characteristics of DFB (distributed feedback) lasers. Through numerical analyses based on the coupled-mode equations, it has been predicted that, in comparison with a DFB laser with uniform axial distribution of the effective refractive-index or the grating period, the axial-mode selectivity and the threshold gain of the lowest mode are much improved in a DFB laser with symmetric cosineor quadratic distribution and are much deteriorated in that with asymmetric linear distribution. Optically pumped GaAs DFB lasers with variable grating period have been fabricated by a new holographic interference technique, and experimental results consistent with the theoretical predictions are obtained." @default.
- W2071212145 created "2016-06-24" @default.
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- W2071212145 date "1981-02-25" @default.
- W2071212145 modified "2023-09-30" @default.
- W2071212145 title "<title>Theory And Experiment On Distributed Feedback Lasers With Chirped Grating</title>" @default.
- W2071212145 doi "https://doi.org/10.1117/12.959182" @default.
- W2071212145 hasPublicationYear "1981" @default.
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