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Variable Liquid-Core Fiber Optical Attenuator Based on Thermo-Optical Effect

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2 Author(s)
Martincek, I. ; Dept. of Phys., Univ. of Zilina, Zilina, Slovakia ; Pudis, D.

We present variable fiber optical attenuator based on shaped and metal-coated liquid core optical fiber filled with index matching liquid. Variable attenuation of 60 dB was achieved by thermo-optical effect, where focused laser beam with optical power of 2 mW was used as a local heating source. Dynamic response shows rise time of 30 ms.

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Lightwave Technology, Journal of  (Volume:29 ,  Issue: 17 )