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Optica Publishing Group
  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1992),
  • paper CTuK15

Integrated optical parametric spectrometer for wave division demultiplexing

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Abstract

While wave division multiplexing promises to allow many channels of information to be sent over a single fiber, there are still many issues that prevent widespread use of the technology. One of the problems is that of demultiplexing. Earlier work demonstrated that parametric spectrometers could be made from waveguides making use of the nonlinear interactions.1,2 The essence of these spectrometers is that if two beams with nonequal propagation constants mix within the waveguide, a second-harmonic signal will emerge at an angle that is nearly normal to the plane of the guide and depends on the frequency difference of the two waves. In this way, the various frequency components of a signal can be separated.

© 1992 Optical Society of America

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