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A distributed-feedback laser diode shows an optical power operation with minimal current-driven red shift, suggesting improved performance.
A distributed-feedback (DFB) laser diode on high thermal conductivity silicon carbide substrate has been shown. CW optical power operation with low current-driven red shift, and threshold current density of 4.8 kA/cm 2 has been shown.
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Feng et al. (2025) studied this question.
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