[1] [1] J. Lou, L. Tong, and Z. Ye, “Modeling of silica nanowires for optical sensing,” Optics Express, 2005, 13(6): 2135-2140.

[2] [2] H. Xuan, W. Jin, and S. Liu, “Long-period gratings in wavelength-scale microfibers,” Optics Letters, 2010, 35(1): 85-87.

[3] [3] S. Liu, Z. Wang, M. Hou, J. Tian, and J. Xia. “Asymmetrically infiltrated twin core photonic crystal fiber for dual-parameter sensing,” Optics & Laser Technology, 2016, 82: 53-56.

[4] [4] S. Liu, Y. Wang, M. Hou, J. Guo, Z. Li, and P. Lu, “Anti-resonant reflecting guidance in alcohol-filled hollow core photonic crystal fiber for sensing applications,” Optics Express, 2013, 21(25): 31690-31697.

[5] [5] M. Hou, Y. Wang, S. Liu, J. Guo, Z. Li, and P. Lu, “Sensitivity-enhanced pressure sensor with hollow-core photonic crystal fiber,” Journal of Lightwave Technology, 2014, 32(23): 4035-4039.

[6] [6] M. Hou, Y. Wang, S. Liu, Z. Li, and P. Lu, “Multi-components interferometer based on partially-filled dual-core photonic crystal fiber for temperature and strain sensing,” IEEE Sensors Journal, 2016, 16(16): 6192-6196.

[7] [7] S. Liu, N. Liu, M. Hou, J. Guo, Z. Li, and P. Lu, “Direction-independent fiber inclinometer based on simplified hollow core photonic crystal fiber,” Optics Letters, 2013, 38(4): 449-451.

[8] [8] S. Liu, N. Liu, Y. Wang, J. Guo, Z. Li, and P. Lu, “Simple in-line M-Z interferometer based on dual-core photonic crystal fiber,” IEEE-Photonics Technology Letters, 2012, 24(19): 1768-1770.

[9] [9] S. Liu, J. Tian, N. Liu, J. Xia, and P. Lu, “Temperature insensitive liquid level sensor based on anti-resonant reflecting guidance in silica tube,” Journal of Lightwave Technology, 2016, 34(22): 5239-5243.

[10] [10] X. Fang, C. R. Liao, and D. N. Wang, “Femtosecond laser fabricated fiber Bragg grating in microfiber for refractive index sensing,” Optics Letters, 2010, 35(7): 1007-1009.

[11] [11] X. Shu, K. Chisholm, I. Felmeri, K. Sugden, A. Gillooly, L. Zhang, et al., “Highly sensitive transverse load sensing with reversible sampled fiber Bragg gratings,” Applied Physics Letters, 2003, 83(15): 3003-3005.

[12] [12] Y. Li, W. Chen, H. Wang, N. Liu, and P. Lu, “Bragg gratings in all-solid Bragg photonic crystal fiber written with femtosecond pulses,” Journal of Lightwave Technology, 2011, 29(22): 3367-3371.

[13] [13] N. Liu, Y. Li, Y. Wang, H. Wang, W. Liang, and P. Lu, “Bending insensitive sensors for strain and temperature measurements with Bragg gratings in Bragg fibers,” Optics Express, 2011, 19(15): 13880-13891.