Full-complex amplitude modulation with binary spatial light modulators
Ozaktas, H., M.
Journal of the Optical Society of America A: Optics and Image Science, and Vision
OSA - The Optical Society
2310 - 2321
MetadataShow full item record
Please cite this item using this persistent URLhttp://hdl.handle.net/11693/22064
Imperfections and nonrobust behavior of practical multilevel spatial light modulators (SLMs) degrade the performance of many proposed full-complex amplitude modulation schemes. We consider the use of more robust binary SLMs for this purpose. We propose a generic method, by which, out of K binary (or 1 bit) SLMs of size M × N, we effectively create a new 2K -level (or K bit) SLM of size M × N. The method is a generalization of the well-known concepts of bit plane representation and decomposition for ordinary gray scale digital images and relies on forming a properly weighted superposition of binary SLMs. When K is sufficiently large, the effective SLM can be regarded as a full-complex one. Our method is as efficient as possible from an information theoretical perspective. A 4f system is discussed as a possible optical implementation. This 4f system also provides a means for eliminating the undesirable higher diffraction orders. The components of the 4f system can easily be customized for different production technologies. © 2011 Optical Society of America.
Showing items related by title, author, creator and subject.
Enhanced electro-optic modulation of LiNbO3-based photonic crystal cavities with dual mode and polarization operation Baǧci F.; Kurt G.; Akaoǧlu B.; Özbay E. (TUBITAK, 2017)A high output transmission and high quality factor, compact LiNbO3 -based Fabry-Perot-type photonic crystal cavity is reported that can be used in electro-optical modulators at optical communication wavelengths. The ...
Ungor, B.; Kurtulmaz, Y.; Halicioglu, S.; Harmanci, A. (Lugansk Taras Shevchenko National University, 2015)Let R be an arbitrary ring with identity and M a right R-module with S = End<inf>R</inf>(M). In this paper, we study right R-modules M having the property for f, g ∈ End<inf>R</inf>(M) and for m ∈ M, the condition fgm = 0 ...
Kakenov N.; Takan T.; Ozkan V.A.; Balci O.; Polat E.O.; Altan H.; Kocabas C. (Institute of Electrical and Electronics Engineers Inc., 2016)Gate-tunable high-mobility electrons on atomically thin graphene layers provide a unique opportunity to control electromagnetic waves in a very broad spectrum. In this paper, we describe an electrically-controlled multipixel ...