Browsing by Subject "External force"

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    Wavelength tuning of the spirally drawn whispering gallery mode microfiber lasers and the perspectives for sensing applications
    (OSA - The Optical Society, 2017) Yang, Shancheng; Eugene, Tay Yong Kang; Wang, Yue; Zhao, Xin; Demir, Hilmi Volkan; Sun, Handong
    Facile and cost-efficient microcavities, as well as the tuning of the optical modes, especially for the application of top-grade optical devices, have been emerging as attractive research fields. In this work, controllable fabrication of the microfiber laser arrays in polymer matrix is achieved by employing the advanced spiral drawing technique. Besides the high-quality whispering gallery mode (WGM) lasing, wavelength tuning is also realized by applying external forces on the polymer matrix, which induce slightly enlarged cavity sizes. Furthermore, the perspectives of utilizing the microfiber arrays as force and strain sensors are discussed and demonstrated. � 2017 Optical Society of America.