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Polarization‐independent liquid‐crystal‐etalon modulator
Author(s) -
Dorjgotov EnkhAmgalan,
Bhowmik Achintya K.,
Bryant Douglas,
Chien LiangChy,
Bos Philip J.
Publication year - 2009
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/jsid17.12.1015
Subject(s) - fabry–pérot interferometer , optics , materials science , polarization (electrochemistry) , optoelectronics , millisecond , physics , wavelength , chemistry , astronomy
— The experimental demonstration of a polarization‐independent high‐transmission field‐sequential liquid‐crystal‐etalon modulator for portable projection‐display application is presented. Polarization independence allows for high transmission efficiency for laser illumination sources using the polarization diversity method of speckle reduction. These devices can also be considered for LED illumination sources; however, the spectral width of current LEDs does not allow for high efficiency, especially for the green channel. These devices demonstrate millisecond switching needed for field‐sequential‐color generation.