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The wavelength-tuning properties of an InGaAs grating-coupled surface-emitting laser (GCSEL) are presented. Wide, continuous tunable laser oscillation has been observed over a range of 115 nm, between 900 nm–1015 nm, under pulsed current excitation. Different external cavities have been studied to achieve optimal performance.
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Jiang et al. (1999) studied this question.
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