A new type of ultrafast tuneable laser based on low-loss lithium niobate integrated photonics could find application in technologies such as continuous-wave light detection and ranging (LiDAR) systems. The device, made by researchers at the Swiss Federal Institute of Technology Lausanne (EPFL) and IBM Research Europe in Zurich, has a high frequency-tuning rate and outperforms previous such lasers in terms of the laser linewidth.
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