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A & M University

The Alabama A & M University Department of Physics Optics and Information Processing

Compact Optical Systems:
Solid Optics

We are working on ways of folding the optical axis to obtain more compact systems. The volume can be reduced by reusing the same path more than once. Folding reduces the overall dimensions of the system, a number related to Airline Dimensionality (AD). AD = length + width + height.

Our approach uses space filling curves, such as Peano and Hilbert curves. The example system is shown below is a 4f correlator based on the first iteration of the Peano curve. The system is built from glass 90-degree prisms, lenses, two spatial light modulators (dark blue), and a detector array (also bark Blue).

Some Papers:

1. M. P. Schamschula, P. Reardon, H. J. Caulfield, and C. F. Hester, Regular Geometries for Folded Optical Modules, in Trends in Optical Engineering, Council of Scientific Research Integration, Trivandrum, India (1993)

2. M. P. Schamschula, H. J. Caulfield, and A. Brown, Peano Curve Modular Optics, Proc. SPIE 2152 (1994)

3. M. P. Schamschula, H. J. Caulfield, and A. Brown, Space Filling Modular Optics, Opt. Lett. 19, 689-691 (1994)

4. M. P. Schamschula, P. Reardon, H. J. Caulfield, and C. F. Hester, Regular Geometries for Folded Optical Modules, Appl. Opt. 34, 816-827,(1995)

5. M. P. Schamschula, J. Qi, and H. J. Caulfield, Fast-switching Array-Navigation Optics with Uniform Times (FANOUT), Manuscript

This work was sponsored by Teledyne Brown Engineering, Huntsville, Alabama