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Compact optical microfiber phase modulator
Xueliang Zhang1,2, M.Belal1, G.Y.Chen1, Zhangqi Song2, G.Brambilla1, and T.P.Newson1
1. Optoelectronics Research Centre, University of Southampton, UK
2. College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha 410073, China
Abstract
A compact optical microfiber phase modulator with MHz bandwidth is presented. A micrometer-diameter microfiber is wound on a millimeter-diameter piezoelectric ceramic rod with two electrodes. When a voltage is applied to the piezoelectric ceramic, the rod is strained, leading to a phase change along the microfiber; because of the small size, the optical microfiber phase modulator can have as high as a few MHz bandwidth response.
Optics Letters (2012) Vol.37(3) pp.320-322
doi: 10.1364/OL.37.000320
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Copyright University of Southampton 2006