Single-frequency coupled asymmetric microcavity laser.

  title={Single-frequency coupled asymmetric microcavity laser.},
  author={Lei Shang and Liying Liu and Lei Xu},
  journal={Optics letters},
  volume={33 10},
Single-mode lasing from a coupled asymmetric microcavity is achieved. By coupling two size mismatched circular microrings to form a coupled asymmetric microcavity, multi-whispering-gallery modes are successfully suppressed and single-frequency laser emission is robustly obtained. Moreover, the laser emits in four directions, and each beam has a divergence of only 6.6 degrees . It is demonstrated further that this single-frequency coupled microcavity laser can be easily integrated with planar… CONTINUE READING
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