NDLI: A tunable wavelength demultiplexer using logarithmic filter chains

Content Provider	IEEE Xplore Digital Library
Author	Lam, C.F. Vrijen, R.B. Chang-Chien, P.P.L. Sievenpiper, D.F. Yablonovitch, E.
Copyright Year	1983
Abstract	This paper proposes a novel wavelength division multiplexer (WDM) demultiplexer design for dense WDM networks. The proposed demultiplexer consists of rectangular shaped periodic frequency filters connected in series. These rectangular filters can be formed with an apodized one-dimensional (l-D) photonic crystal structure on a ridged semiconductor waveguide. A design example is given for such filters. In such designs, we can use a moderate refractive index contrast, in discrete groups of many layers, to achieve the same stop-band width that we would get with a large contrast. Apart from being compact in size, to demultiplex an arbitrary wavelength from N wavelengths, only log/sub 2/ N switches and filter stages are required. This type of filter has a large potential to be used in integrated photonic implementation and packet switched dense WDM applications.
Sponsorship	IEEE Lasers and Electro-Optics Society Optical Society of America
Starting Page	1657
Ending Page	1662
Page Count	6
File Size	213132
File Format	PDF
ISSN	07338724
Volume Number	16
Issue Number	9
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-09-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Filters Wavelength division multiplexing WDM networks Frequency Photonic crystals Rectangular waveguides Semiconductor waveguides Refractive index Switches Packet switching
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

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