Answers are grounded in this paper and cite their sources.
We report a dual-mode semiconductor laser that has two gratings with different periods below and above the active layer. A semiconductor optical amplifier (SOA), which is integrated with the dual-mode laser, plays an important role in balancing the optical power and reducing the linewidths of the emission modes. A stable two mode emission with the 13.92-nm spacing can be obtained over a wide range of distributed feedback and SOA injection currents. Compared with other types of dual-mode lasers, our device has the advantages of simple structure, compact size, and low fabrication cost.
No takes yet. Share an insight, caveat, or question.
Deng et al. (2016) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: