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Updated: May 13, 2026

Multicolor Fluorescence Detection for Droplet Microfluidics Using Optical Fibers
Published on: May 5, 2016
Fluorescence enhancement in broadband Cr-doped fibers fabricated by drawing tower
Yi-Chung Huang1, Chun-Nien Liu, Yen-Sheng Lin
1Department of Photonics, National Sun Yat-sen University, Kaohsiung 80424, Taiwan. oris@mail.nsysu.edu.tw
Abstract:
The fluorescence enhancement in broadband Cr-doped fibers (CDFs) fabricated by a drawing tower with a redrawn powder-in-tube preform is proposed and demonstrated. The CDFs after heat treatment exhibited Cr⁴⁺ emission enhancement with spectral density of 200 pW/nm, verified by the formation of α-Mg₂SiO₄ nanocrystalline structures in the core of CDFs. The high fluorescence achievement in the CDFs is essential to develop a broadband CDF amplifier for next-generation optical communication systems.
