Holoswitch - Phase I.
Abstract
The purpose of this Phase I SBIR contract is to develop ways of using switchable holograms to change from one optical interconnect pattern to another with great rapidity. That is we sought to combine the high flexibility in design and high diffraction efficiency of classical holography with the reprogrammability of the far-less-efficient real time holographic methods of four wave mixing, three wave mixing, etc. We are considering three distinct ways to switch holograms. In one approach, the hologram itself is multistable. Multistable holograms can include a very useful state of no diffraction. Therefore they can be arrayed in such a way that, if they are inactive, the light passes through them to the next hologram. The second approach is to use fixed holograms which are active for one polarization state and inactive for the other. Electro-optic switches control which one operates. Third, we can use a 90 deg hologram through which only light polarized in the plane of the hologram can diffract.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1985
- Accession Number
- ADA152212
Entities
People
- H. J. Caulfield
Organizations
- Aerodyne Research