Short pulse generation by Adiabatic tuning of light

Takasumi Tanabe, Masaya Notomi, Hideaki Taniyama, Eiichi Kuramochi

Research output: Contribution to specialist publicationArticle


Short pulse generation by adiabatic tuning of light was reported. The photonic crystal nanocavity was used in the experiment as a width-modulated line defect cavity that is inline connected to input/output waveguides. a modulated output spectrogram, where a short wavelength component appears immediately after the modulation, even though we have not entered light at this wavelength. Another aspect of AWS is that it allows us to achieve dynamic control of the Q of the cavity, which is required to demonstrate photonic memory. AWS shifts the wavelength of the trapped light toward a shorter wavelength, and the light is immediately output into the waveguides and generates a short pulse. This is strengthens the coupling between the cavity and I/O waveguides, resulting in a low-Q mode.

Original languageEnglish
Number of pages1
Specialist publicationOptics and Photonics News
Publication statusPublished - 2009 Dec
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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