Optical-fiber variable-attenuator arrays using polymer-network liquid crystal
- 1 May 2001
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 13 (5), 487-489
- https://doi.org/10.1109/68.920760
Abstract
This paper describes compact variable optical attenuator arrays made by using fiber splicers and polymer-network liquid crystal. Fibers are inserted into the splicers and the gaps between the ends of the fibers are filled with the polymer-network liquid crystal. The residual loss for each array element is low (about 0.8 dB), the attenuation of 1.55-μm light is about 8 dB and the driving voltage is 20 V/sub rms/. The polarization dependence is <2 dB. The power consumption is also very low (30 nW/ch). They are used for channel power equalizers for WDM systems.Keywords
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