Pei, J. D., Wang, L. F., Zhou, Y., Wang, Y. P., Chai, X. L., Huang, M., Zhu, Y. H., Liang, Z. M., Xu, Z. C., Chen, J. X. (2026). Mid-infrared interband cascade superluminescent diode with tunable spectral-width and monolithically integrated detector. Applied Physics Letters. https://doi.org/10.1063/5.0315833