Letter abstract

Nature Photonics 4, 37 - 40 (2010)
Published online: 20 December 2009 | doi:10.1038/nphoton.2009.259

Subject Categories: Lasers, LEDs and light sources | Nonlinear optics | Fibre optics and optical communications

CMOS-compatible multiple-wavelength oscillator for on-chip optical interconnects

Jacob S. Levy1,3, Alexander Gondarenko1,3, Mark A. Foster2, Amy C. Turner-Foster1, Alexander L. Gaeta2 & Michal Lipson1

Silicon photonics enables the fabrication of on-chip, ultrahigh-bandwidth optical networks that are critical for the future of microelectronics1, 2, 3. Several optical components necessary for implementing a wavelength division multiplexing network have been demonstrated in silicon. However, a fully integrated multiple-wavelength source capable of driving such a network has not yet been realized. Optical amplification, a necessary component for lasing, has been achieved on-chip through stimulated Raman scattering4, 5, parametric mixing6 and by silicon nanocrystals7 or nanopatterned silicon8. Losses in most of these structures have prevented oscillation. Raman oscillators have been demonstrated9, 10, 11, but with a narrow gain bandwidth that is insufficient for wavelength division multiplexing. Here, we demonstrate the first monolithically integrated CMOS-compatible source by creating an optical parametric oscillator formed by a silicon nitride ring resonator on silicon. The device can generate more than 100 new wavelengths with operating powers below 50 mW. This source can form the backbone of a high-bandwidth optical network on a microelectronic chip.

  1. School of Electrical and Computer Engineering, Cornell University, Ithaca, New York 14853, USA
  2. School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA
  3. These authors contributed equally to this work

Correspondence to: Michal Lipson1 e-mail: ml292@cornell.edu


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