Title

Variable Optical Attenuator With A Polymer-Stabilized Dual-Frequency Liquid Crystal

Abstract

A transmission-type variable optical attenuator (VOA) based on a polymer-stabilized dual-frequency liquid crystal (PSDFLC) is demonstrated at λ = 1.55 μm. The VOA is highly transparent in the voltage-off state but scatters light in the voltage-on state. By using a birefringent beam displacer incorporated with half-wave plates, we can obtain a VOA that is polarization independent and that exhibits a 31 dB dynamic range. The polymer networks and dual-frequency effect together reduce the response time (rise + decay) of a 16 μm PSDFLC cell to 30 ms at room temperature and at a voltage of 24 Vrms. © 2005 Optical Society of America.

Publication Date

7-10-2005

Publication Title

Applied Optics

Volume

44

Issue

20

Number of Pages

4394-4397

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/AO.44.004394

Socpus ID

22944456180 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/22944456180

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