Dynamic holographic wavelength filtering for CWDM applications

Alfredo Martin Minguez; Paloma R. Horche

doi:10.1117/12.614341

15 September 2005 Dynamic holographic wavelength filtering for CWDM applications

Alfredo Martin Minguez, Paloma R. Horche

Proceedings Volume 5907, Photonic Devices and Algorithms for Computing VII; 59070L (2005) https://doi.org/10.1117/12.614341
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

This paper describes the theory and experimental results of a dynamic holographic wavelength filtering for use in optical telecommunication Coarse and Dense Wavelength Division Multiplexing (CWDM/DWDM) applications. The enabling component is a ferroelectric liquid crystal (FLC) spatial light modulator (SLM) where dynamic holograms are implemented in real time; as a consequence, tuning of the filter is possible according to the light modulation. The great advantage of this FLC device is a polarization insensitivity operation, allowing low crosstalk and potential low loss in optical communications. Other applications, such as demultiplexers and wavelength routers, have been studied and practical values have been obtained according to central wavelengths recommended in ITU G. 694.1 and G. 694.2. Lab experiments have demonstrated the capability of a phase FLC-SLM to diffract the incident light, according its wavelengths and the hologram patterns, for the use in the former applications.

Citation Download Citation

Alfredo Martin Minguez and Paloma R. Horche "Dynamic holographic wavelength filtering for CWDM applications", Proc. SPIE 5907, Photonic Devices and Algorithms for Computing VII, 59070L (15 September 2005); https://doi.org/10.1117/12.614341

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