Femtosecond laser direct-write of optofluidics in polymer-coated optical fiber

Kevin A. J. Joseph; Moez Haque; Stephen Ho; J. Stewart Aitchison; Peter R. Herman

doi:10.1117/12.2256996

19 April 2017 Femtosecond laser direct-write of optofluidics in polymer-coated optical fiber

Kevin A. J. Joseph, Moez Haque, Stephen Ho, J. Stewart Aitchison, Peter R. Herman

Proceedings Volume 10094, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XVII; 1009414 (2017) https://doi.org/10.1117/12.2256996
Event: SPIE LASE, 2017, San Francisco, California, United States

Abstract

Multifunctional lab in fiber technology seeks to translate the accomplishments of optofluidic, lab on chip devices into silica fibers. a robust, flexible, and ubiquitous optical communication platform that can underpin the ‘Internet of Things’ with distributed sensors, or enable lab on chip functions deep inside our bodies. Femtosecond lasers have driven significant advances in three-dimensional processing, enabling optical circuits, microfluidics, and micro-mechanical structures to be formed around the core of the fiber. However, such processing typically requires the stripping and recoating of the polymer buffer or jacket, increasing processing time and mechanically weakening the device. This paper reports on a comprehensive assessment of laser damage in urethane-acrylate-coated fiber. The results show a sufficient processing window is available for femtosecond laser processing of the fiber without damaging the polymer jacket. The fiber core, cladding, and buffer could be simultaneously processed without removal of the buffer jacket. Three-dimensional lab in fiber devices were successfully fabricated by distortion-free immersionlens focusing, presenting fiber-cladding optical circuits and progress towards chemically-etched channels, microfluidic cavities, and MEMS structure inside buffer-coated fiber.

Citation Download Citation

Kevin A. J. Joseph, Moez Haque, Stephen Ho, J. Stewart Aitchison, and Peter R. Herman "Femtosecond laser direct-write of optofluidics in polymer-coated optical fiber", Proc. SPIE 10094, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XVII, 1009414 (19 April 2017); https://doi.org/10.1117/12.2256996

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