| Author(s): |
Patrick J. Grother; D P. Casasent; |
| Title: |
Optical Path Difference Measurement Techniques for SLMs |
| Published: |
March 01, 2001 |
| Abstract: |
A simple measurement method to obtain 2-D spatial point-by-point optical path difference (OPD) data for spatial light modulators (SLMs) is described. A simple imaging system is used that allows measurements of all SLM parameters on the same laboratory systems. Simple digital processing of the output image for a uniform applied input voltage provides OPD data. Simple methods to confirm amplitude-mostly SLM operations are also provided. Results are presented for Kopin and CRL liquid crystal SLMs.PACS Classification codes - 42.79, 42.62, 42.87/ |
| Citation: |
Optics Communications |
| Keywords: |
liquid crystals;optical path difference;spatial light modulators |
| Research Areas: |
Biometrics |
