Dual-Frequency Addressed Variable Optical Attenuator with Submillisecond Response Time

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  • Liang Xiao
    College of Optics and Photonics, University of Central Florida
  • Lu Yan-Qing
    College of Optics and Photonics, University of Central Florida
  • Wu Yung-Hsun
    College of Optics and Photonics, University of Central Florida
  • Wang Hai-Ying
    College of Optics and Photonics, University of Central Florida
  • Wu Shin-Tson
    College of Optics and Photonics, University of Central Florida
  • Du Fang
    College of Optics and Photonics, University of Central Florida

書誌事項

公開日
2005
DOI
  • 10.1143/jjap.44.1292
公開者
The Japan Society of Applied Physics

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説明

We demonstrated a submillisecond response time and low-voltage variable optical attenuator (VOA) using a dual-frequency liquid crystal. The dynamic range of the VOA reaches 43 dB at a 1.55 μm wavelength. A normally on VOA with a flat wavelength response is obtained using a phase compensation cell. Fast rise and decay times are achieved using low-frequency overdrive and high-frequency undershoot voltages. Other approaches to further improve the VOA’s performances are discussed.

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