Massachusetts Institute of Technology

Solomon Assefa

Gale Petrich

John Dimitris Joannopoulos

Alexei A Erchak

Steven G Johnson

Leslie Kolodziejski

Shanhui Fan

Elefterios Lidorikis

Erich P Ippen

Peter Bienstman

Michelle L Povinelli

Reginald E Bryant

Leslie A Kolodziekski

A nano-electromechanical optical switch includes an input optical waveguide that is provided with an optical signal. At least two output optical waveguides are coupled to the input optical waveguide. The deflection of the input optical waveguide aligns with one of either of the two output optical waveguides so as to allow transmission of the optical signal to one of either of the two output optical waveguides.

Nano-electromechanical high-index contrast

A microcavity structure includes a first waveguide that includes a first photonic crystal microcavity. A second waveguide includes a second photonic crystal microcavity. A microcavity active region is created by overlapping the first and second microcavities.

Electrically-activated photonic crystal microcavity laser

A coupling element includes a first stage having a dielectric waveguide that is transitioned to a waveguide having a sequence of resonators with a fixed period. A second stage transitions the waveguide to a photonic crystal waveguide by gradually bringing closer at an angle the cladding bulk of the photonic crystal to the waveguide.

Waveguide coupling into photonic crystal waveguides

Growing community of inventors

Cambridge, MA, United States of America

Solomon Assefa