Spectral linewidth reduction due to structural optimisation is studied in butt-jointed DBR lasers. It is theoretically shown that a laser structure with passive DBR regions on both sides of an active region is effective in reducing the linewidth. Based on theoretical calculation, 1.5 μm butt-jointed DBR lasers are fabricated entirely by MOVPE growth. Linewidth is reduced to 580kHz in structure-optimised 1.5 μm buttjointed DBR lasers.
No takes yet. Share an insight, caveat, or question.
Kano et al. (1989) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: