![1. QC DFB laser cross section showing top-mesa-etched grating covered... | Download Scientific Diagram 1. QC DFB laser cross section showing top-mesa-etched grating covered... | Download Scientific Diagram](https://www.researchgate.net/publication/264874514/figure/fig1/AS:669372414709776@1536602228924/QC-DFB-laser-cross-section-showing-top-mesa-etched-grating-covered-with-evaporated-Au.png)
1. QC DFB laser cross section showing top-mesa-etched grating covered... | Download Scientific Diagram
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