A 1 × 48 large-scale multi-mode fibre (MMF) optical switch driven by a stepper motor is reported. The insertion loss is <1.42 dB, which can be further reduced to 1.02 dB after optimisation. With the employment of a corner cube prism in the optics, the device is characterised by good repeatability of <±0.01 dB. Meanwhile, the device has a fast response of <8 ms.

中文翻译：

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1×48大型多模光纤开关

报道了一种由步进电机驱动的 1 × 48 大型多模光纤 (MMF) 光开关。插入损耗<1.42 dB，优化后可进一步降低至1.02 dB。通过在光学器件中使用角锥棱镜，该器件具有 <±0.01 dB 的良好可重复性。同时，该设备具有 <8 毫秒的快速响应。