Digitally tunable microfluidic optical fiber devices |
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Authors: | Cattaneo F Baldwin K Shu Yang Krupenkine T Ramachandran S Rogers JA |
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Affiliation: | Bell Labs., Murray Hill, NJ, USA; |
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Abstract: | This communication introduces a digital design for tunable microfluidic optical fiber devices. In these systems, multiple, independently controlled microfluidic plugs are pumped into or out of overlap with a fiber structure to modulate its transmission characteristics. The devices described here use eight plugs, eight electrowetting pumps and a corresponding set of molded planar recirculating microchannels to control the depth of the narrowband loss feature associated with a long period fiber grating. Optical measurements illustrate the digital and relatively fast operation of this type of microfluidic fiber device. |
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