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Proceedings Paper

Wavelength tunable and broadband variable fiber-optic attenuators using liquid crystals
Author(s): Sajjad A. Khan; Nabeel A. Riza
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Paper Abstract

Fiber-Optic Variable Optical Attenuators (VOAs) are demonstrated using Liquid Crystals (LC) for broadband as well as wavelength tunable applications. Attenuation is achieved by using a beam spoiling approach implemented via electrically reconfigurable non-pixelated no moving parts Nematic LC deflectors. The VOAs feature in-line architecture and polarization insensitive design without the use of bulky polarization splitting and combining optics. The proof-of-concept VOAs in the 1550 nm band demonstrate >30 dB attenuation ranges, low polarization dependent losses and low power consumption. Applications for these VOAs include agile wavelength tunable secure data communications networks and RF sensor systems.

Paper Details

Date Published: 24 May 2005
PDF: 16 pages
Proc. SPIE 5814, Enabling Photonics Technologies for Defense, Security, and Aerospace Applications, (24 May 2005); doi: 10.1117/12.604910
Show Author Affiliations
Sajjad A. Khan, College of Optics and Photonics/Univ. of Central Florida (United States)
Nabeel A. Riza, College of Optics and Photonics/Univ. of Central Florida (United States)


Published in SPIE Proceedings Vol. 5814:
Enabling Photonics Technologies for Defense, Security, and Aerospace Applications
Andrew R. Pirich; Michael J. Hayduk; Eric J. Donkor; Peter J. Delfyett, Editor(s)

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