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- W2046142502 abstract "A simple expression for the linewidth of vertical cavity, periodic gain, laser diodes is reported. Quantum wells, spaced half a wavelength apart are assumed to be driven by time-independent electrical currents Jk, and to possess distinct phase amplitude coupling factors alphak. The usual linewidth formula is found to be applicable if the photon lifetime is defined as the round trip time divided by a factor of 6, and the averaging of the alphak is made with Jk as a weighting factor. Furthermore, half the spatial variance of alpha must be subtracted. The expression involves cross terms of the form alphai alphaj, i not=j." @default.
- W2046142502 created "2016-06-24" @default.
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- W2046142502 date "1994-02-01" @default.
- W2046142502 modified "2023-09-23" @default.
- W2046142502 title "Linewidth of gain-coupled distributed feedback lasers" @default.
- W2046142502 doi "https://doi.org/10.1049/ip-opt:19949847" @default.
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