• Stability enhancement by 23 dB for external optical feedback at 1.3 mm
[37, 38].
• Large tuning range of >200 nm [39].
• Improved radiation hardness and suppressed facet overheating, increasing
the castastrophic optic mirror damage (COMD) level [40, 41].
• Complete suppression of filamentation for the transverse ground mode up
to stripe widths of 9 mm at 1.3 mm leading to strongly increased coupling
efficiency into fibers [42].
• Deep mesa lasers with superb index-guided performance down to very
narrow stripe widths (1 mm) and completely spherical far field [43] are
opening new opportunities for cost-efficient photonic crystal or distributed
feedback (DBF) applications and low-cost coupling to fibers.
• A 12-GHz modulation bandwidth at room temperature ...