Enhancement of phase sensitivity by exploring slow light in photonic crystals

Marin Soljacic; Steven G. Johnson; Shanhui Fan; Mihai Ibanescu; Erich P. Ippen; John D. Joannopoulos

doi:10.1117/12.475541

11 July 2002 Enhancement of phase sensitivity by exploring slow light in photonic crystals

Marin Soljacic, Steven G. Johnson, Shanhui Fan, Mihai Ibanescu, Erich P. Ippen, John D. Joannopoulos

Proceedings Volume 4870, Active and Passive Optical Components for WDM Communications II; (2002) https://doi.org/10.1117/12.475541
Event: ITCom 2002: The Convergence of Information Technologies and Communications, 2002, Boston, MA, United States

Abstract

We demonstrate how dramatic increases in the induced phase shifts caused by small changes in the index of refraction can be achieved by using very slow group velocities of light, which are readily achievable in photonic crystal systems. Combined with the fact that small group velocity greatly decreases the power requirements needed to operate a device, enhanced phase sensitivity may be used to decrease the size and power requirements of many devices, including switches, routers, all-optical logical gates, wavelength converters, etc. We demonstrate how these advantages can be used to design switches smaller than 20*200 square microns in size, using readily available materials, and at modest levels of power. With this approach, one could have "4O such devices on a surface 2*2 square cm, making it an important step towards large-scale all-optical integration.

Citation Download Citation

Marin Soljacic, Steven G. Johnson, Shanhui Fan, Mihai Ibanescu, Erich P. Ippen, and John D. Joannopoulos "Enhancement of phase sensitivity by exploring slow light in photonic crystals", Proc. SPIE 4870, Active and Passive Optical Components for WDM Communications II, (11 July 2002); https://doi.org/10.1117/12.475541

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