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Vertical-cavity surface-emitting laser arrays can be designed to operate in a coherently coupled mode, however, high yield has been challenging in past efforts. We discuss microcavity laser arrays that are designed to be optically coupled but with independent bias current injection into each array element. We demonstrate that these arrays can be electronically tuned to coherently coupled operation...
We report design and fabrication of photonic crystal (PC) Si membrane reflectors with integrated inplane couplers (Si MR-Coupler) based on Fano resonance effect. The measured results show the Si MR-Coupler has a 99% reflection and > 0.22% in-plane coupling efficiency.
Selectively oxidized ring defect photonic crystal vertical cavity surface emitting laser (RD-PCVCSEL) is demonstrated. The device achieves coherent coupling over the entire continuous-wave current range.
The fabrication of nanolasers in photonic crystal cavities, which have large Purcell factors and a predominant coupling to the cavity laser mode is essential. Here, we quantify the coupling strength needed for coherent coupling of the laser cavities when taking into account detuning effects and show that the systems display rich nonlinear dynamics. We model the coupling effects using a tight-binding...
Selectively oxidized ring defect photonic crystal vertical cavity surface emitting laser (RD-PCVCSEL) is first demonstrated. The device achieves coherent coupling over the entire continuous-wave current range.
We report a parametric study of coherent transverse coupling in photonic crystal VCSELs with 2times1 arrangements of defect cavities. Out of 100 different devices, 71 yielded coherent arrays as determined by far field measurements.
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