Abstract

We study the propagation and switching of slow-light pulses in nonlinear directional couplers composed of two parallel waveguides, where each waveguide contains a Bragg grating. We show that by optimizing the phase shift between the Bragg gratings, one can obtain specific dispersion characteristics enabling all-optical pulse manipulation in space and in time. We demonstrate that the power-controlled nonlinear self-action of light can be used to compensate dispersion-induced broadening of pulses through the formation of gap solitons, to control pulse switching in the coupler, and to tune the propagation velocity. We also confirm that the switching is tolerant to deviations of the phase shift from the optimal value, which can occur in the fabrication process.

© 2008 Optical Society of America

Full Article  |  PDF Article
More Like This
Slow-light switching in nonlinear Bragg-grating couplers

Sangwoo Ha, Andrey A. Sukhorukov, and Yuri S. Kivshar
Opt. Lett. 32(11) 1429-1431 (2007)

Bistable switching and reshaping of optical pulses in a Bragg grating cavity

Irina V. Kabakova, C. Martijn de Sterke, and Benjamin J. Eggleton
J. Opt. Soc. Am. B 27(12) 2648-2653 (2010)

Dispersionless tunneling of slow light in antisymmetric photonic crystal couplers

Sangwoo Ha, Andrey A. Sukhorukov, Kokou B. Dossou, Lindsay C. Botten, Andrei V. Lavrinenko, Dmitry N. Chigrin, and Yuri S. Kivshar
Opt. Express 16(2) 1104-1114 (2008)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (9)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (10)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Metrics