Journal ArticleDOI
Optical fiber switch driven by PZT bimorph
Yutaka Ohmori,Haruo Ogiwara +1 more
TLDR
This Letter presents an optical fiber switch driven by PZT bimorph as one attempt at switching speed improvement, which reduces chattering by applying a multistep voltage.Abstract:
Optical fiber communications need optical switches. For a multimode fiber system, an optical fiber switch is suitable for a low switching loss. At present, an optical fiber switch has low switching speed. Short switching time in a system results in increased traffic handling capacity. In this Letter, an optical fiber switch driven by PZT bimorph is presented as one attempt at switching speed improvement. Chattering, which is one cause of low switching speed, is reduced by applying a multistep voltage. The 1 × 2 optical switch consisted of one movable optical fiber and two fixed optical fibers, as shown in Fig. 1. The movable optical fiber was driven by a PZT ceramics bimorph. The optical fiber used in this experiment was a multimode fiber of the step-index type with a 60-μm core diam and 150-μm outer diam. The bimorph was constructed with two Fig. 1. Optical fiber switch description.read more
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Patent
Fiber optic switch
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