Jianbin Zhang, Yi Kang, Xin Guo, Yuhang Li, Keying Liu, Yu Xie, Hao Wu, Dawei Cai, Jue Gong, Zhangxing Shi, Yingying Jin, Pan Wang, Wei Fang, Lei Zhang, Limin Tong
As miniature fibre-optic platforms, micro/nanofibres (MNFs) taper-drawn from silica fibres have been widely studied for applications from optical sensing, nonlinear optics to optomechanics and atom optics. While continuous-wave (CW) optical waveguiding is frequently adopted, so far almost all MNFs are operated in low-power region (e.g., <0.1 W). Here, we demonstrate high-power low-loss CW optical waveguiding in MNFs around 1550-nm wavelength. We show that a pristine MNF, even with a diameter down to 410 nm, can waveguide an optical power higher than 10 W, which is about 30 times higher than demonstrated previously...
April 7, 2023: Light, Science & Applications