id author title date pages extension mime words sentence flesch summary cache txt st74cn7346c Jinyang Li Compound Semiconductor Oxidation for Single-Mode High-Index-Contrast Ridge Waveguide and Quantum Cascade Lasers 2021 .txt text/plain 434 12 33 Through extensive optimization of lithography, etching and OEWTO processes, single mode HIC RWG diode lasers are demonstrated for the first time. Notably, a circularly symmetric output beam HIC RWG laser is achieved for the first time, overcoming the traditional asymmetric, highly elliptical beam divergence limitation of edge-emitting lasers and well surpassing the ~2 mW maximum power of current symmetric single mode vertical cavity surface emitting lasers. cache/st74cn7346c.txt txt/st74cn7346c.txt