Abstract
Holographic Nonspatial Filters designed to clean up the output of a laser have been shown to be a great Improvement over conventional spatial filters. This paper successfully addresses several major problems or shortcomings of the Nonspatial Filter. The problems were in the use of two filters together for cleaning up a laser beam in both diniensions. Polarization and orientation effects made the system complicated and inconvenient. A simple compound element consisting of a sandwich of two identical holograms is shown to solve these problems.
Original language | English (US) |
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Pages (from-to) | 109-122 |
Number of pages | 14 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 2688 |
DOIs | |
State | Published - Apr 22 1996 |
Externally published | Yes |
Event | Holographic Materials II 1996 - San Jose, United States Duration: Jan 27 1996 → Feb 2 1996 |
Keywords
- Holography
- Lasers
- Spatial Filtering
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering