Sub-GHz Resolution Photonic Spectral Processor and Its System Applications

Roy Rudnick; Alexander Tolmachev; David Sinefeld; Ori Golani; Shalva Ben-Ezra; Moshe Nazarathy; Dan M. Marom

doi:10.1109/JLT.2016.2647710

Sub-GHz Resolution Photonic Spectral Processor and Its System Applications

Roy Rudnick, Alexander Tolmachev, David Sinefeld, Ori Golani, Shalva Ben-Ezra, Moshe Nazarathy, Dan M. Marom

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10 Scopus citations

Abstract

A record performance metric waveguide grating router (WGR) design with a 200 GHz free spectral range (FSR) capable of resolving sub-GHz resolution spectral features is developed for a fine resolution photonic spectral processor (PSP). The WGR's FSR was designed to support subchannel add/drop from a superchannel of 1 Tb/s capacity. Due to fabrication imperfections, we introduce phase corrections to the light beams emerging from the 250 waveguides of the WGR output using a liquid crystal on silicon (LCoS) phase spatial light modulator (SLM) placed in an imaging configuration. A second LCoS SLM is located at the Fourier plane, for arbitrary spectral amplitude and phase manipulations. The PSP is utilized in multiple system transmission experiments, such as flexible spectral shaping and subcarrier drop demultiplexing with sub-GHz spectral resolution.

Original language	American English
Article number	7805173
Pages (from-to)	2218-2226
Number of pages	9
Journal	Journal of Lightwave Technology
Volume	35
Issue number	11
DOIs	https://doi.org/10.1109/JLT.2016.2647710
State	Published - 1 Jun 2017

Bibliographical note

Publisher Copyright:
© 1983-2012 IEEE.

Keywords

Optical communication
optical filters
optical planar waveguide components
optical waveguide components
wavelength division multiplexing

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10.1109/JLT.2016.2647710

Cite this

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abstract = "A record performance metric waveguide grating router (WGR) design with a 200 GHz free spectral range (FSR) capable of resolving sub-GHz resolution spectral features is developed for a fine resolution photonic spectral processor (PSP). The WGR's FSR was designed to support subchannel add/drop from a superchannel of 1 Tb/s capacity. Due to fabrication imperfections, we introduce phase corrections to the light beams emerging from the 250 waveguides of the WGR output using a liquid crystal on silicon (LCoS) phase spatial light modulator (SLM) placed in an imaging configuration. A second LCoS SLM is located at the Fourier plane, for arbitrary spectral amplitude and phase manipulations. The PSP is utilized in multiple system transmission experiments, such as flexible spectral shaping and subcarrier drop demultiplexing with sub-GHz spectral resolution.",

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AU - Nazarathy, Moshe

AU - Marom, Dan M.

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Sub-GHz Resolution Photonic Spectral Processor and Its System Applications

Abstract

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Keywords

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