On the basis of a general analysis of waveguides containing a dispersive material, we identify conditions under which slow-light propagation may enhance the gain, absorption, or phase change. The enhancement is shown to depend on the slow-light mechanism and the translational symmetry of the waveguide. A combination of material and waveguide dispersion may strongly enhance the control of light speed, e.g., using electromagnetically induced transparency in quantum dots embedded in a photonic crystal waveguide.
© 2010 Optical Society of America
Original Manuscript: December 4, 2009
Manuscript Accepted: July 4, 2010
Published: August 17, 2010
Jesper Mørk and Torben R. Nielsen, "On the use of slow light for enhancing waveguide properties," Opt. Lett. 35, 2834-2836 (2010)