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An N*N optical multiplexer using a planar arrangement of two star couplers

IEEE Photonics Technology Letters · 1991 · Vol. 3(9) · pp. 812–815

C. Dragone✉(AT&T (United States))

Abstract

The author describes the design of an integrated N*N multiplexer capable of simultaneously multiplexing and demultiplexing a large number (up to about 50) of input and output wavelength channels. The multiplexer is a generalization of the 2*2 Mach-Zehnder multiplexer. It consists of two N*M star couplers connected by M paths of unequal length. Aberrations caused by mutual coupling in the waveguide arrays are minimized by a correction scheme that causes each star coupler to accurately perform a Fourier transformation. The multiplexer should be useful as a wavelength routing device for long haul and local area networks.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>

Photonic and Optical Devices Optical Network Technologies Semiconductor Lasers and Optical DevicesMultiplexerStar (game theory)MultiplexingStar networkPhysicsWavelength-division multiplexingComputer sciencePlanarOptical add-drop multiplexerTopology (electrical circuits)

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Integrated optics N*N multiplexer on silicon