Journal ArticleDOI
All-optical analog-to-digital converters, hardlimiters, and logic gates
L. Brzozowski,E.H. Sargent +1 more
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TLDR
The authors propose and analyze the optical signal processing functionality of periodic structures consisting of alternating layers of materials possessing different Kerr nonlinearities and propose a family of optical limiters whose output signal clamps to a set upper logic level for any input value exceeding a chosen threshold.Abstract:
The authors propose and analyze the optical signal processing functionality of periodic structures consisting of alternating layers of materials possessing different Kerr nonlinearities. They explore structure-materials-performance relationships in all-optical analog-to-digital converters, hardlimiters, and AND and OR gates. They show that their proposed analog-to-digital converters can extract a binary word from multilevel optical signals in a single bit interval. They also propose a family of optical limiters whose output signal clamps to a set upper logic level for any input value exceeding a chosen threshold. They explore the performance of an all-optical logic gate whose forward-directed output implements a binary AND and whose backward-directed output implements an OR function.read more
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Journal ArticleDOI
Optically sampled analog-to-digital converters
Paul W. Juodawlkis,J.C. Twichell,Gary E. Betts,J.J. Hargreaves,R.D. Younger,J.L. Wasserman,Frederick J. O'Donnell,K.G. Ray,R.C. Williamson +8 more
TL;DR: In this article, the authors present a phase-encoded optical sampling technique for analog-to-digital (ADC) converters with high-extinction LiNbO/sub 3/1/to-8 optical time-division demultiplexers.
Journal ArticleDOI
Ultrafast integrable and reconfigurable XNOR, AND, NOR, and NOT photonic logic gate
TL;DR: A novel, simple, compact, and integrable scheme of reconfigurable and ultrafast photonic logic gate is demonstrated, based on a single semiconductor optical amplifier (SOA) and able to process ultrafast signals.
Journal ArticleDOI
Self-collimation in photonic crystal structures: a new paradigm for applications and device development
Dennis W. Prather,Shouyuan Shi,Janusz Murakowski,Garrett J. Schneider,Ahmed Sharkawy,Caihua Chen,Bing Lin Miao,Richard D. Martin +7 more
TL;DR: In this paper, the development of the self-collimation phenomenon in photonic crystal structures for integrated optics applications is reported, including channelless waveguiding, orthogonal bending of light, tunable beam splitter, all-optical analog-to-digital converter, reconfigurable optical switch, chemical/gas sensor and a three-dimensional optical interconnect bus.
Journal ArticleDOI
All-optical analog-to-digital converter by use of self-frequency shifting in fiber and a pulse-shaping technique
TL;DR: Preliminary experimental results show that various digitized temporal bit signals can be generated by the variation of the power of an ultrashort analog input pulse of less than 1 ps.
Journal ArticleDOI
Design and performance analysis of wavelength/time (W/T) matrix codes for optical CDMA
TL;DR: The design and construction of the matrices are described; their use as codes for the asynchronous, concurrent communication of multiple users is described; and the bit error rate performance is analyzed based on capturing and modeling a typical network topology and performing a numerical modeling of the system.
References
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Fundamentals of Photonics
TL;DR: The Fundamentals of Photonics, Third Edition as discussed by the authors is a self-contained and up-to-date introductory-level textbook that thoroughly surveys this rapidly expanding area of engineering and applied physics.
Book
Nonlinear Optics of Organic Molecules and Polymers
TL;DR: In this article, Singh Nalwa et al. presented a measurement technique for Third-Order Nonlinear Optics (3ONO) based on phase-matched second harmonic generation in organic materials.
Book
Modern Digital and Analog Communications Systems
TL;DR: Modern Digital and Analog Communication Systems offers students a superb pedagogical style and every effort is made to give an intuitive insight - rather than just proofs - as well as heuristic explanations of theoretical results wherever possible.