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Tunable twin-guide (TTG) laser diodes have been fabricated using metal-organic vapor phase epitaxy (MOVPE) exclusively for all epitaxy stages. A significant performance improvement over previous experiments has been achieved with an effective current confinement in a considerably simpler laser structure. As a consequence, continuous wavelength tuning over 4.7 nm is obtained while maintaining a light output power per facet of 3 mW.>
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Wolf et al. (1993) studied this question.
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