© The Institution of Engineering and Technology
A InAlGaAs/InP microring laser with a ring width of 5 µm and an external radius of 10 µm, connected with a 2 µm-wide output waveguide, is fabricated by the planar technology process. Continuous-wave lasing operation is realised with a threshold current of 3 mA at 298 K, and 3 dB bandwidths of 10.8 and 8.7 GHz are obtained at the injection currents of 12 mA at 291 and 298 K, respectively.
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