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Hybrid Guided-Wave/Free-Space Optics Photonic Spectral Processor Based on LCoS Phase Only Modulator

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2 Author(s)
Sinefeld, David ; Appl. Phys. Dept., Hebrew Univ. of Jerusalem, Jerusalem, Israel ; Marom, Dan M.

We propose and demonstrate a photonic spectral processor for applying arbitrary spectral phase and amplitude at high resolution with a 100-GHz free-spectral range for colorless wavelength-division-multiplexing adaptive filtering applications. The system employs free-space optics for projecting the dispersed light coming out of a planar-lightwave circuit onto a phase spatial-light modulator. The processor achieves 3-GHz optical resolution over 75-GHz usable bandwidth, with 557-MHz addressable granularity.

Published in:

Photonics Technology Letters, IEEE  (Volume:22 ,  Issue: 7 )