IEEE Photonics Journal (Jan 2015)

Coupled-Ring-Resonator-Mirror-Based Heterogeneous III–V Silicon Tunable Laser

  • S. Srinivasan,
  • M. Davenport,
  • T. Komljenovic,
  • J. Hulme,
  • D. T. Spencer,
  • J. E. Bowers

DOI
https://doi.org/10.1109/JPHOT.2015.2428255
Journal volume & issue
Vol. 7, no. 3
pp. 1 – 8

Abstract

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We show theoretical and experimental results from a tunable laser, with its center wavelength in the C-band, designed using coupled-ring resonator mirrors. The effective cavity length enhancement and negative optical feedback obtained from the resonators helps to narrow the laser linewidth in a small form factor. We report a linewidth of 160 kHz and a side-mode suppression ratio of > 40 dB over the full tuning range.

Keywords