Journal article
Photonic crystal and quantum dot technologies for all-optical switch and logic device
Solid Mechanics, Department of Mechanical Engineering, Technical University of Denmark1
Department of Mechanical Engineering, Technical University of Denmark2
Nanophotonics, Department of Photonics Engineering, Technical University of Denmark3
Department of Photonics Engineering, Technical University of Denmark4
Center for Nanoteknologi, Centers, Technical University of Denmark5
Nano-photonic technologies of GaAs-based two-dimensional photonic crystal (2DPC) slab waveguides (WGs) and InAs-based quantum dots (QDs) are reviewed for a symmetrical Mach–Zehnder (SMZ) type, ultra-small and ultra-fast all-optical switch (PC-SMZ) and logic device. As the first phase, ultra-fast (∼ps) and ultra-low energy (∼100 fJ) switching has been demonstrated using a chip 600 μm×300 μm in size.
The second phase is to create a PC-SMZ-based ultra-fast photonic logic switch with a latch function for a future ultra-fast photonic digital processor. One of the priority subjects is to establish a new design method, i.e., topology optimization (TO) method of 2DPC-WGs with wide/flat bandwidth, high transmittance and low reflectivity.
Another one is to develop selective-area-grown, high-density and highly uniform InAs QDs with large optical nonlinearity (ONL) by using a metal-mask (MM) molecular beam epitaxy (MBE) growth method. Recent results regarding these two subjects encourage us to reach the final goal.
| Language: | English |
|---|---|
| Publisher: | IOP Publishing |
| Year: | 2006 |
| Pages: | 1-26 |
| ISSN: | 13672630 |
| Types: | Journal article |
| DOI: | 10.1088/1367-2630/8/9/208 |
| ORCIDs: | Sigmund, Ole |
