Proceedings ArticleDOI
Analog Signal Splitting and Amplification for Optically-Controlled Phased-Array Antennas
Elizabeth T. Kunkee,Chuck Zmudzinski,Larry Lembo,James E. Leight,Roosevelt Johnson,Fernando D. Alvarez,Doyle T. Nichols,John C. Brock +7 more
TLDR
In this paper, multimode interference in a semiconductor optical amplifier is used to simultaneously split (× 10) and amplify a RF signal on an optical carrier, which is used in this paper.Abstract:
In this work, multimode interference in a semiconductor optical amplifier is used to simultaneously split (× 10) and amplify a RF signal on an optical carrier.read more
Citations
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PatentDOI
Slotted multimode interference device
TL;DR: A novel modification of multimode-interference devices that has broad applicability, can be accomplished in a variety of ways, actually increases bandwidth, and has good error tolerances.
Journal ArticleDOI
Multimode interference devices with input-output ports on the sides
TL;DR: What is believed to be a novel arrangement of the input-output ports on MMI devices is described and a variety of benefits are achieved and a range of new devices can be made.
References
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Journal ArticleDOI
Optical multi-mode interference devices based on self-imaging: principles and applications
LB Soldano,E.C.M. Pennings +1 more
TL;DR: The underlying self-imaging principle in multimode waveguides is described using a guided mode propagation analysis and it is shown that multimode interference couplers offer superior performance, excellent tolerance to polarization and wavelength variations, and relaxed fabrication requirements when compared to alternatives such as directional coupling.
Journal ArticleDOI
Novel 1‐to‐N way integrated optical beam splitters using symmetric mode mixing in GaAs/AlGaAs multimode waveguides
TL;DR: In this article, a GaAs/AlGaAs integrated optical 1-to-N way beam splitters using symmetric mode mixing in center-fed multimode planar waveguides is described.
Proceedings ArticleDOI
Low-loss fiber optic time-delay element for phased-array antennas
TL;DR: In this article, the fiber optic Bragg reflection gratings are written holographically into the core of a single-mode fiber at various positions along its length and an optical carrier is modulated by the RF signal of interest and launched into this delay line fiber.
Journal ArticleDOI
A manufacturable technique for implementing low-loss self-imaging waveguide beamsplitters
TL;DR: In this paper, a self-imaging waveguide beamplitter with splitting ratios that range from 1/spl times/2 through 1/pl times/17 was proposed and demonstrated.
Proceedings ArticleDOI
Microwave optical splitter/amplifier integrated chip (MOSAIC) using semiconductor optical amplifiers
Charles A. Zmudzinski,E. Twyford,Lawrence J. Lembo,Roosevelt Johnson,Fernando D. Alvarez,Doyle T. Nichols,John C. Brock +6 more
TL;DR: In this article, the authors investigated the need for optical amplification in large optical distribution systems, and showed that the amplifier length should be minimized in order to minimize the noise figure and that the optical power level should be well below the saturation power.
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