V. Krishnamurthy, Q. Wang, J. Pu, T. Loh, and C. W. Lee, "Thin-silicon-film platform for single-mode lasers," in Asia Communications and Photonics Conference 2014, OSA Technical Digest (online) (Optical Society of America, 2014), paper ATh2B.2.
Abstract:
Active layers directly-bonded onto thin-silicon-film exhibits good confinement~15% and requires compact(<60μm) mode-transformer. DFB laser-on-thin-silicon-film study shows superior flexibility in designing coupling coefficient to reduce threshold current and increase slope efficiency by ~2×-5×, compared to prior-arts.