Thick PQ:PMMA transmission holograms for free-space optical communication via wavelength-division multiplexing
Abstract
Phenantrenequinone doped poly(methyl-methacrylate) (PQ:PMMA) is a holographic substrate that can be used for angle or wavelength multiplexed Bragg gratings. However, efficient writings can be done only using a high-power, long-coherence volume laser over a limited wavelength range. This constraint makes it difficult to write gratings that would diffract several different read wavelengths into a single direction. We describe the rules for writing such gratings, taking into account the differences in the mean index seen by the write and read wavelengths. We further demonstrate the use of such a transmission hologram for wavelength-division multiplexing in a free-space optical communication system.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Sep 27, 2021
- Source ID
- 10.1364/ao.434503
Entities
People
- Joseph Vonckx
- Julian Gamboa
- Mohamed Fouda
- Selim M. Shahriar
- Tabassom Hamidfar
Organizations
- Air Force Office of Scientific Research
- Naval Air Systems Command
- Northwestern University