Abstract

Microchannels are fabricated into conventional single-mode fibers by femtosecond laser processing and chemical etching. Fabrication limitations imposed by the fiber geometry are highlighted and resolved through a simple technique without compromising fabrication flexibility. A microfluidic fiber device consisting of a 4μm wide microchannel that intersects the fiber core for refractive index sensing is further demonstrated.

© 2006 Optical Society of America

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