Related Experiment Videos
Implementation of discrete unitary transformations by multimode waveguide holograms.
Shuo-Yen Tseng1, Younggu Kim, Christopher J K Richardson
1Physical Sciences and Department of Electrical and Computer Engineering, University of Maryland, College Park, Maryland 20742, USA. sytseng@lps.umd.edu
Applied Optics
|June 30, 2006
Summary
Holograms integrated into multimode waveguides enable complex optical computations like mode transformations and matrix multiplication. These devices, including pattern generators, are feasible for practical applications using standard fabrication methods.
Area of Science:
- Photonics and optical engineering, focusing on integrated optics and holography.
Background:
- Multimode waveguides offer a platform for complex optical signal processing.
- Holographic elements can perform sophisticated light manipulations.
Purpose of the Study:
- To theoretically design and experimentally demonstrate holographic integrated photonic devices for optical computing.
- To implement arbitrary unitary mode transformations and matrix-vector multiplication using holograms in waveguides.
Main Methods:
- Theoretical analysis to derive design principles for holographic waveguide devices.
- Beam propagation simulations to verify performance, bandwidth, and scalability.
- Fabrication of optical pattern generators using standard photolithographic techniques.
Main Results:
- Demonstrated theoretical framework for designing holographic multimode waveguide devices.
- Proposed and analyzed compact mode-order converters, Hadamard transformers, and pattern generator-correlators.
- Successfully fabricated optical pattern generators, validating device feasibility.
Conclusions:
- Hologram integration in multimode waveguides is a viable method for advanced optical functions.
- The proposed design approach enables the creation of compact and functional integrated photonic devices.
- Standard fabrication techniques support the realization of these holographic optical devices.